wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

IGAC 2-Heat Topic

Total questions: 200

Worksheet time: 2hrs 53mins

Name
Class
Date
1.

Heat is often measured in units called _____.

a)

temperature

b)

degrees

c)

pounds

d)

calories

2.

In this state of matter the molecules vibrate in place, but they do not change positions relative to each other.

a)

liquid

b)

solid

c)

plasma

d)

gas

3.

In this state of matter the molecules are in constant contact with one another, but they can move around freely.

a)

liquid

b)

solid

c)

plasma

d)

gas

4.

In this state of matter the molecules are spaced very far apart from each other and move freely through space.

a)

liquid

b)

solid

c)

plasma

d)

gas

5.

Materials that hinder the flow of heat

a)

insulators

b)

conductors

c)

radiation

d)

radiation

6.

A method of heat transfer that does not rely upon any contact between a source of heat and the heated object

a)

insulators

b)

conductors

c)

radiation

d)

convection

7.

It occurs when warmer areas of a liquid or gas rise to cooler areas

a)

conduction

b)

convection

c)

conductors

d)

insulators

8.

Forces that are equal in magnitude but opposite in direction.

a)

motion

b)

balanced forces

c)

speed

d)

unbalanced forces

9.

The capacity to do work

a)

Energy

b)

Speed

c)

Pitch

d)

Conduct

10.

Energy that transfers between substances because of a temperature difference between the substances; the transfer of energy is always from the warmer substance to the cooler substance

a)

Conductor

b)

Circuit

c)

Heat Energy

d)

Sound Energy

11.

A material used to reduce or prevent the transfer of heat

a)

Electrical Energy

b)

Insulator

c)

Speed

d)

Conductor

12.

The energy that is possessed by an object due to its motion or position

a)

Electricity

b)

Motion

c)

Unbalanced Forces

d)

Mechanical Energy

13.

The only visible form of energy; produced or given off directly from the Sun causing the growth of plants and the existence of most life forms

a)

Electricity

b)

Light Energy

c)

Sound Energy

d)

Reflect

14.

The relative frequency, high or low, of a sound as perceived by a listener.

a)

Sound Energy

b)

Attraction

c)

Pitch

d)

Insulator

15.

The act or process of changing position and/or direction

a)

Energy

b)

Motion

c)

Mechanical Energy

d)

Speed

16.

To bounce light, sound, or heat off of a surface.

a)

Reflect

b)

Circuit

c)

Attraction

d)

Light Energy

17.

Energy produced by sound vibrations

a)

Mechanical Energy

b)

Conductor

c)

Sound Energy

d)

Pitch

18.

To force away or apart.

a)

Reflect

b)

Attraction

c)

Repel

d)

Heat Energy

19.

Amount of distance traveled divided by time taken

a)

Motion

b)

Speed

c)

Energy

d)

Conduct

20.

Forces that are unequal in magnitude and may or may not be opposite in direction; also see force and balanced forces

a)

Sound Energy

b)

Motion

c)

Pitch

d)

Unbalanced Forces

21.

To transmit heat, sound, or electricity through a medium.

a)

Light Energy

b)

Circuit

c)

Heat Energy

d)

Conduct

22.

The physical phenomena arising from the behavior of electrons and protons that is caused by the attraction of particles with opposite charges and the repulsion of particles with the same charge

a)

Repel

b)

Motion

c)

Electricity

d)

Energy

23.

A material that readily allows electric charges to pass through it and therefore carries electricity well

a)

Conductor

b)

Unbalanced Force

c)

Insulator

d)

Reflect

24.

Energy made available by the flow of electric charge through a conductor

a)

Heat Energy

b)

Motion

c)

Speed

d)

Electrical Energy

25.

An interconnection of electrical elements forming a complete path for the flow of electric current

a)

Conductor

b)

Insulator

c)

Circuit

d)

Reflect

26.

The electric force exerted by oppositely charged particles, tending to draw or hold the particles together

a)

Conductor

b)

Attraction

c)

Electricity

d)

Pitch

27.

Energy that is stored in matter and can be released by a chemical reaction

a)

Chemical Energy

b)

Conduct

c)

Energy

d)

Insulator

28.
When you heat materials for 10 minutes, how would you know which one is the BEST conductor?
a)
The material which temperature increases the most.
b)
The material that changes the slowest.
c)
The material which temperature increases the least.
d)
The material that stays the same.
29.
Which is the BEST reason pots made out of the materials: aluminum, copper, and sometimes glass?
a)
They are able to stop the flow of heat.
b)
They are good conductors of heat.
c)
They keep the same amount of heat.
d)
They are good insulators of heat.
30.
She goes outside to make a snowman. Why do her hands stay warm?
a)
The heat flows quickly from the snow through the mitten.
b)
The heat flows quickly from the mitten to the snow.
c)
The gloves are good conductors that trap heat.
d)
The gloves are good insulators that trap heat.
31.
Which of the following cups will most likely keep my water cold?
a)
metal
b)
glass
c)
foam
d)
paper
32.
Which of the following must be present for heat to flow from one substance to another?
a)
One of the substances must always be a solid.
b)
One of the substances must always be a liquid.
c)
The substances must be at the same temperature.
d)
The substances must be at the different temperature.
33.
Which of the following will cause the fastest change in temperature of an ice cube?
a)
ice cube in a pot of boiling water
b)
ice cube in a pot of cold water
c)
ice cube in a pot of warm water
d)
ice cube on a plate at room temperature
34.
When you hold an ice cube in your hand. It begins to melt as you squeeze it. Why?
a)
You absorb heat from the ice.
b)
You release cold to the ice.
c)
Cold moves from the ice onto your hand as it melts.
d)
Heat moves from your hand into the cube and warms it.
35.
Which one describes how the sand's heat affects a snake’s body as it comes out of the shade?
a)
The sand gets cooler when then snake slithers across it.
b)
The snake’s body temperature decreases.
c)
The snake’s body temperature increases.
d)
The sand gets warmer when the snake lays down.
36.
Which are examples of heat energy?
a)
campfire, stove
b)
trombone, drum
c)
light bulb, fan
d)
boiling water, pinwheel
37.
What types of energy does a light bulb give off?
a)
heat and electric
b)
light and heat
c)
electric and light
d)
light and mechanical
38.
Zoe rubs her hands together quickly; she notices they get warm. What type of energy is this?
a)
electrical energy
b)
light energy
c)
sound energy
d)
heat energy
39.

If two objects have different temperatures, heat will flow from the warmer object to the cooler one UNTIL ____________

a)

one reaches a temperature of zero

b)

they both have an equal temperature

c)

one runs out of energy

40.
The temperature of a substance increases as___.
a)
the substance expands
b)
the average kinetic energy of its particles increases
c)
the substance's volume increases
d)
the substance's mass increases
41.
Why does a diver wear a wet suit?
a)
To keep in thermal energy.
b)
To keep from getting cuts.
c)
To keep from sinking.
d)
To keep out cold.
42.
When you touch something that feels cold, 
a)
heat from your hand moves into the cold substance.
b)
coldness moves from the cold substance into your hand.
c)
it melts.
d)
it freezes.
43.

On a hot day the lake water warms and the temperature increases. How does the movement of the particles change?

a)

move slower and farther apart

b)

move slower and closer together

c)

move faster and farther apart

d)

move faster and closer together

44.

At room temperature water is a liquid. How could the water be changed to a solid?

a)

add heat

b)

remove heat

c)

decrease density

d)

increase density

45.

Which description defines heat?

a)

total thermal energy of an object or substance

b)

change in the temperature of a substance in degrees Celsius

c)

energy transferred between objects at different temperatures

d)

average kinetic energy of the particles that make up a substance

46.

How does the thermal energy of the liquid in the larger beaker compare to the thermal energy of the liquid in the smaller beaker?

a)

The liquid in the larger beaker has less thermal energy than the liquid in the smaller beaker.

b)

The liquid in the larger beaker has more thermal energy than the liquid in the smaller beaker.

c)

The liquid in the larger beaker has the same amount of thermal energy as the liquid in the smaller beaker.

d)

The exact volume of the liquid in each beaker must be known to compare the thermal energy of the liquids.

47.

How does heat transfer when you hold an ice cube in your hand?

a)

from the cold ice cube to your warm hand

b)

the cold ice cube makes your hand cold

c)

from your warm hand to the cold ice cube

d)

very carefully

48.

Jeriah places two metal cubes in contact with each other. Energy transfers as heat flows from Cube A to Cube B. What conclusion can you draw regarding Cube A?

a)

It is larger than Cube B.

b)

It is cooler than Cube B.

c)

It is smaller than Cube B.

d)

It is warmer than Cube B.

49.

Joe places two solid objects in contact with each other. Which property determines the direction of the flow of heat between the two objects?

a)

material of the objects

b)

volume of objects

c)

density of objects

d)

temperature of objects

50.

Emerson places a beaker of water on a hotplate and turns the hotplate on. The temperature in the room is 25 ºC. After the water heats to 75 ºC, she adds pieces of ice to the beaker.


Which of the following describes a transfer of heat energy that occurs during this experiment?

a)

from the air to the water

b)

from the ice to the beaker

c)

from the water to the ice

d)

from the water to the hotplate

51.

The picture below shows a closed system before and after undergoing a change.


What was changed in the system?

a)

Particles were added to the system.

b)

Water was added to the system.

c)

Heat was added to the system.

d)

Air was added to the system.

52.

The water in Mario’s swimming pool absorbs energy as heat during the day. Which of the following would the water in the pool be most likely to do?

a)

condense

b)

evaporate

c)

freeze

d)

melt

53.

As part of a lab experiment, Tasha drops a metal cube into a beaker of water, as shown in the figure below.


After energy in the form of heat transfers between the substances, what is the final temperature of the water?

a)

The final temperature is 25 °C because there is more water than metal.

b)

The final temperature is 50 °C because the metal warms the water to the temperature of the metal.

c)

The final temperature is between 25 °C and 50 °C because energy is transferred from the metal to the water.

d)

The final temperature is between 25 °C and 50 °C because most of the thermal energy is lost to the air around the substances.

54.

The natural direction of heat flow between two bodies depends on __________.

a)

their volume

b)

their temperature

c)

their heat capacity

d)

whether they are in a liquid, a solid or gaseous state

55.

The boiling point of water is 100oC. What is this in kelvin?

a)

173

b)

212

c)

373

d)

512

56.

Contraction of a solid indicates that _______.

a)

the number of particles decreases

b)

the space between particles increases

c)

the average velocity of particles increases

d)

there is a decrease in the average kinetic energy of particles

57.

During warm days, you cool yourself by damping your skin with a wet towel. Which of the following takes place?

a)

Your skin absorbs the coldness of the water.

b)

Your skin releases energy when water from your skin evaporates.

c)

The temperature of the water on your skin decreases as it

evaporates.

d)

The temperature of your skin increases as water evaporates from your skin.

58.

What happens to the surface of the water when the rate of evaporation is

greater?

a)

It becomes cooler.

b)

It absorbs less energy.

c)

It becomes more massive.

d)

It absorbs greater energy.

59.

Which of the following happens when ice changes into a liquid at 0oC?

a)

The molecules move slower than before.

b)

The temperature of the substance increases.

c)

The potential energy of the molecules increases.

d)

The average movement of the molecules increases.

60.

The normal body temperature is 37oC. What is this in Fahrenheit?

a)

32 oF

b)

99 oF

c)

212 oF

d)

373 oF

61.

The decrease in temperature of a substance indicates that _______.

a)

the number of particles in it decreases

b)

the average velocity of its particles increases

c)

the average potential energy of particles decreases

d)

the average kinetic energy of its particles decreases

62.

Which of the following is NOT a unit of temperature?

a)

Calorie

b)

Celsius

c)

Fahrenheit

d)

Kelvin

63.

All substances will expand equally with the same change in temperature.

a)

True

b)

False

c)

Neither

d)

Either Yes or No

64.

When a substance undergoes thermal expansion, its _________.

a)

mass increases

b)

volume decreases

c)

particles get colder

d)

particles spread out

65.

Does the temperature of a substance depend on how much of the substance

is present?

a)

No

b)

Yes

c)

Maybe

d)

None of the above

66.

Do all particles of the substance at a certain temperature move at the same

speed and in the same direction?

a)

No

b)

Yes

c)

Maybe

d)

None of the above

67.

What happens to the temperature of an object when the particles are moving

faster?

a)

reduces

b)

increases

c)

remains constant

d)

increases then reduces

68.

What average energy of particles does temperature measure?

a)

kinetic

b)

potential

c)

chemical

d)

mechanical

69.

Which of the following affects thermal energy transfer. (Select all that apply)

a)

Color

b)

Mass

c)

Table

d)

Cells

e)

Temperature

70.

Which of the following has the least amount of kinetic energy?

a)

gas

b)

solid

c)

liquid

71.

Which of the following has the greatest kinetic energy?

a)

gas

b)

solid

c)

liquid

72.

What is the relationship between the variables mass and temperature?

a)

The greater the mass, the greater the temperature.

b)

Mass and temperature do not have a relationship.

c)

The lower the temperature, the lower the mass.

d)

As mass increases, the temperature decreases.

73.

The movement of substances from an area of higher concentration to an area of lower concentration is the definition for which of the following vocabulary terms?

a)

Diffusion

b)

Confusion

c)

Dissolution

d)

Solution

74.

Which of the following is a change in volume due to an increase in heat?

a)

Thermal Contraction

b)

Radiation

c)

Thermal Expansion

d)

Toaster Coils

75.

This is the energy an object has when it's moving

a)

Temperature

b)

Collision

c)

Stability

d)

Kinetic energy

76.
What is the primary source of energy for the Earth?
a)
Coal
b)
Wind power
c)
Natural gas
d)
The sun
77.

Which of the following is a measure of the average kinetic energy of all the particles in an object?

a)

Heat

b)

Convection

c)

Temperature

d)

Radiation

78.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
same
79.
Conduction, Convection and Radiation are three types of...
a)
Electrical energy
b)
Thermal Energy
c)
Chemical Energy
d)
Sound Energy
80.
The Law of Conservation of Energy states:
a)
Energy can created or destroyed but not transformed 
b)

Energy cannot be created or destroyed, it can only be transformed

c)
Energy can't be created, destroyed or transformed
81.
What happens to particles as they heat up?
a)
They slow down
b)
Nothing
c)
They don't move
d)
They speed up
82.
As you touch a hot stove the heat transfers -
a)
from your hand to the stove
b)
from the stove to your hand
c)
It doesn't transfer
83.
The sun warming your skin is an example of heat transfer through 
a)
conduction
b)
convection
c)
radiation
d)
thermal electricity
84.
The handle of a metal spoon warms up when it is placed in a hot bowl of soup because of
a)
Convection
b)
Conduction
c)
Radiation
d)
insulation.
85.

When an object expands upon heating, its volume increases.

a)

TRUE

b)

FALSE

86.

Substances with high heat capacities heat up more slowly because they can absorb more heat before their temperature rises.

a)

TRUE

b)

FALSE

87.

Heat depends only on how fast molecules vibrate.

a)

TRUE

b)

FALSE

88.

A decrease in temperature of a substance indicates that the_______

a)

volume of the substance reduces

b)

volume of the substance increases

c)

particles of the substance get closer with each other

d)

particles of the substance move farther from each other

89.

Which of the following happens when ice changes into liquid at 0ºC?

a)

The molecules are not moving.

b)

The molecules move slower when ice changes into liquid.

c)

The temperature of the liquid is higher than the temperature of the ice.

d)

The temperature of the liquid is the same as the temperature of the ice.

90.

Why does liquid in the thermometer rise when put in hot water?

a)

The liquid is boiling.

b)

The liquid is evaporating.

c)

The liquid gains heat from the hot water causing it to expand.

d)

The liquid loses heat from the hot water causing it to contract.

91.

During warm days, you cool yourself by damping your skin with a wet towel. Which of the following takes place?

a)

Wet towel has no effect on your body

b)

Wet towel releases heat energy to your body

c)

Wet towel absorbs heat energy from your body.

d)

Wet towel has the same temperature as your body.

92.

Temperature of a body measures the molecular_______.

a)

average kinetic energy

b)

average potential energy

c)

differences in kinetic energy

d)

differences in potential energy

93.

It is dependent of the average

KINETIC ENERGY

(a)  

94.

It is the total KINETIC ENERGY of all particles

In a substance and it is measured in

JOULES.

(a)  

95.

Inflated balloon will shrink when kept inside a freezer.

a)

TRUE

b)

FALSE

96.

A glass of water with ice floating on it cools faster than a glass of water with ice pushed to the bottom of the glass.

a)

TRUE

b)

FALSE

c)

MAYBE

d)

NOT SURE

97.

The air blown from a wide, open mouth is warm, while the air blown from tight, closed lips cold.

a)

TRUE

b)

FALSE

c)

MAYBE

d)

NOT SURE

98.

When storing water inside a freezer at night, closing the metal cover of the glass container tightly would make it difficult to open the following day.

a)

TRUE

b)

FALSE

99.

Boiling water causes more damage to the skin than steam at 100ºC.

a)

TRUE

b)

FALSE

100.
Shelly tells a friend that her computer needs to be fixed because it has been producing a lot of heat and is smoking. Where is the error in her statement?
a)
Her computer should be producing a lot of heat and does not need to be fixed.
b)
Thermal energy cannot be produced by electronics.
c)
Her computer is producing thermal energy, not heat.
d)
Heat cannot be described as having been produced.
101.
Which best describes the direction of heat?
a)
from a cooler substance to a warmer substance
b)
from a substance with no thermal energy to a substance with high amounts of thermal energy
c)
from a warmer substance to a cooler substance
d)
from a substance with less thermal energy to a substance with more thermal energy
102.
If a cup of coffee is at 90°C and a person with a body temperature of 36°C touches it, how will heat flow between them?
a)
from the hand to surrounding air
b)
from the cup to the surrounding air
c)
from the cup to the hand
d)
from the hand to the cup
103.
Which substance has the most thermal energy and will have the most heat flow from it?
a)
a stovetop burner on medium (200°C)
b)
a nuclear reactor core (1000°C)
c)
the human body (36°C)
d)
air at room temperature (32°C)
104.
The metal aluminum coils in an air conditioner conduct thermal energy from inside the house and release it outside the house. What can be said about the coils when they are accepting the heat inside the house?
a)
They must be more insulated than the air inside the house.
b)
They must have more thermal energy than the air inside the house.
c)
They must be cooler than the air inside the house.
d)
They must be warmer than the air inside the house.
105.
What must be true about two objects if heat is flowing between them?
a)
The objects must be different temperatures.
b)
The objects must be the same temperature.
c)
The objects must both be over room temperature.
d)
The objects must both be under room temperature.
106.
Which factors affect heat transfer between a warm and a cool substance?
a)
the amount of time of contact, the area of the substances, and the specific heats of the substances
b)
the time it took to heat the substance, the area of contact, and the specific heats of the substances
c)
the amount of time of contact, the area of contact, and the specific heats of the substances
d)
the time it took to heat the substance, the area of the substances, and the specific heats of the substances
107.
Which substance is most likely to heat up the fastest?
a)
dry air (specific heat of 1.01 /g • C°)
b)
aluminum (specific heat of .90 /g • C°)
c)
copper (specific heat of .39 /g • C°)
d)
water (specific heat of 4.19 /g • C°)
108.
Heat transfer between two substances is affected by specific heat and the
a)
chemical composition of the substances.
b)
state of matter of the substances at room temperature.
c)
thermal equilibrium of the substances.
d)
amount of time and area of physical contact between the substances.
109.
Mintu wants to increase the heat transfer between a metal iron and another piece of metal he wants to shape. He decides to increase the time the two metals are in contact, use a larger metal iron, and use a new metal material with a higher specific heat.
a)
Mintu should have decreased the time he touches the two metals.
b)
Mintu should have decreased the size of the metal iron.
c)
Mintu should have chosen a material the same temperature as the iron.
d)
Mintu should have chosen a material with a lower specific heat.
110.

ALL the energy of all the particles in a substance is a measure of its

a)

temperature

b)

insulator

c)

specific heat

d)

thermal energy

111.

The amount of energy needed to change 1 kg of a substance by 1 degree celsius is its

a)

thermal energy

b)

specific heat

c)

temperature

112.

Thermal expansion is

a)

a measure of the kinetic energy

b)

all the energy of all the particles

c)

the increase in volume of a substance due to an increase in temperature

113.

Which is NOT a good insulator?

a)

metal

b)

plastic

c)

wood

d)

cloth

114.

If two substances have the same AVERAGE kinetic energy, then

a)

they have equal thermal energy

b)

they have the same temperature

c)

they have the same specific heat

115.

Compared to the Pacific Ocean, a cup of hot tea has

a)

more thermal energy and a higher temperature

b)

less thermal energy and a higher temperature

c)

more thermal energy and a lower temperature

116.

When a stethoscope touches your skin, what happens?

a)

heat travels from the stethoscope to your skin

b)

no energy is transferred

c)

the stethoscope warms up due to humidity

d)

heat travels from your warm body to the stethoscope

117.

Mr. Salyer has a two-story house. In the winter, he uses his downstairs heating unit because the arm air

a)

contracts, rises, and heats the house through conduction

b)

expands, sinks, and heats the house through convection

c)

expands, rises, and heats the house through convection

118.

The rising and falling of air due to uneven heating of the Earth's surface is called

a)

convection

b)

radiation

c)

conduction

d)

does not happen

119.

When a gas or liquid heat up, what happens?

a)

molecules are closer together, become less dense, and rise

b)

molecules are spread out, become less dense, and rise

c)

molecules are closer together, become denser, and rise

120.

Warming a marshmallow OVER a campfire is an example of

a)

radiation

b)

convection

c)

conduction

d)

global warming

121.

Roller coasters have gaps in the tracks so they can expand in hot weather due to

a)

thermal expansion

b)

specific heat

c)

mood swings

d)

thermal conductivity

122.

Aluminum changes temperature at a slower pace than lead. Aluminum has a higher

a)

temperature

b)

conduction rate

c)

thermal energy

d)

specific heat

123.

A fireplace is heating an entire house through

a)

radiation

b)

conduction

c)

convection

124.

Which is NOT a heat transfer by radiation?

a)

A bottle sitting in the sun that gets warm

b)

Sitting beside of a campfire and feeling the heat

c)

A pot of water heating over a hot stove

d)

A person sunbathing

125.

Total amount of thermal energy in an object depends on

a)

temperature and number of particles

b)

temperature

c)

the object's specific heat

d)

the number of particles

126.

The temperature of a substance increases as___.

a)

a. the substance expands

b)

b. the average kinetic energy of its particles increases

c)

c. the substance's volume increases

d)

d. the substance's mass increases

127.

When you touch something that feels cold, 

a)

a. heat from your hand moves into the cold substance.

b)

b. coldness moves from the cold substance into your hand.

c)

c. it melts.

d)

d. it freezes.

128.

How does the speed of the particle in a substance relate to the temperature of the substance?

a)

a. helps to determine the amount of average kinetic energy, which helps to determine temperature

b)

b. there is no relationship between the two

c)

c. helps to determine if a relationship even exists between the two

d)

d. helps to determine the amount of heat, which helps to determine the temperature

129.

The energy transferred between object's at different temperatures

a)

a. heat

b)

b. thermal energy

c)

c. radiation

d)

d. convection

130.

The total kinetic energy of a substance's particles

a)

a. heat

b)

b. convection

c)

c. thermal energy

d)

d. conduction

131.

Heat is thermal energy that flows between objects that differ in___.

a)

a. radiation

b)

b. temperature

c)

c. thermal energy

d)

d. specific heat

132.

Scientists use either the ____ scale or the ____ scale.

a)

a. celsius, farenheit

b)

b. farenheit, kelvin

c)

c. kelvin

d)

d. celsius, kelvin

133.

Water freezes at 32⁰F, which as the same as___ K.

a)

a. 273

b)

b. 0

c)

c. 373

d)

d. 100

134.

Water boils at 100⁰ C, which is the same as___⁰F.

a)

a. 273

b)

b. 32

c)

c. 212

d)

d. 0

135.

If the particles in an object have more kinetic energy, what must be true?

a)

a. The object's temperature is lower

b)

b. The object's temperature is higher

c)

c. The object moves faster

d)

d. The object is heavier

136.

In which state do particles move fastest and with little effect on each other?

a)

a. ice

b)

b. gas

c)

c. liquid

d)

d. solid

137.

What does the average kinetic energy of an object's particles tell you?

a)

a. the temperature of the object 

b)

b. how hot the object is

c)

c. how cold the object is

d)

d. how fast the particles are moving

138.

If the particles of two substances have the same average kinetic energy, then___.

a)

a. the specific heats of the substances are identical 

b)

b. the particles will not react chemically

c)

c. the substances have equal thermal energies

d)

d. the substances have equal temperatures

139.

The boiling of water on the Farenheit, Celsius, and Kelvin scales is respectively,____.

a)

a. 98.6⁰F, 37⁰C, 310K

b)

b. 212⁰F, 100⁰C, 273K

c)

c. 68⁰F, 20⁰C, 293K

d)

d. 32⁰F, 0⁰C, 273K

140.

Water boils at 212⁰F, which is equivalent to__.

a)

a. 273 K

b)

b. 37⁰C

c)

c. 0⁰ C

d)

d. 100⁰C

141.
Five groups in Mr. Ruiz's class conduct an experiment to measure the effect of different insulators on temperature. Group B is the only group that concludes that foam is not a good insulator of heat. What most likely accounts for the different results?
a)
Group B did not make accurate measurements of temperature.
b)
Group B was the only group that wrote down the procedure.
c)
Group B had a different number of students than the other groups.
d)
Group B are better investigators than the other groups
142.
Valarie is investigating how heat affects the rate of evaporation of water. She makes a prediction that heat will increase the rate of evaporation. Which of the following will provide evidence that Valarie needs to support her conclusion?
a)
prior knowledge and classifying
b)
data and observations
c)
questions and inferences
d)
analysis and hypotheses
143.
Debbie's mother has different types of pots in her kitchen. Many of them are made of copper and aluminum. Some are made of glass. Which of the following is the best reason why the pots are made of these materials?
a)
They are able to stop the flow of heat.
b)
They are good insulators of heat.
c)
They keep the same amount of heat.
d)
They are good conductors of heat.
144.
Andy puts on a pair of mittens and his winter coat. He goes outside to play in the snow. Which of the following explains why his hands stay warm?
a)
The gloves are good insulators that trap heat.
b)
The heat flows quickly from the mitten to the snow.
c)
The gloves are good conductors that trap heat.
d)
The heat flows quickly from the snow through the mitten
145.
Chelsea is drinking fruit juice from an aluminum can. She wants to pour the juice into a cup. Which of the following cups will most likely keep her fruit juice cold?
a)
foam
b)
glass
c)
metal
d)
paper
146.
Steve knows that heat can transfer between two substances. For example, a warm bowl of soup can warm a metal spoon. Which of the following must be present for heat to flow from one substance to another?
a)
One of the substances must always be a solid.
b)
One of the substances must always be a liquid.
c)
The substances must be at different temperatures.
d)
The substances must be at the same temperature.
147.
George holds an ice cube in his hand. As he squeezes the ice, it begins to melt. Which of the following best explains why this happens?
a)
George absorbs heat from the ice.
b)
Heat moves from Abdul’s hand into the cube and warms it.
c)
Cold moves from the ice onto George’s hand as it melts.
d)
George releases cold to the ice.
148.
Beth is learning about the properties of heat in science class. She knows that heat must flow to cause a change of temperature in a substance. Which of the following will cause the fastest change in temperature of an ice cube?
a)
ice cube in a pot of cold water
b)
ice cube in a pot of warm water
c)
ice cube in a pot of boiling water
d)
ice cube on a plate at room temperature
149.
The students in Miss Zunz’s class are learning about how different forms of energy are used. They make a chart as shown below.
Electric energy: computer, freezer
Heat energy: ?
Energy of motion: roller coaster, swing set
Which of these best completes the students’ chart?
a)
campfire, stove
b)
light bulb, fan
c)
boiling water, pinwheel
d)
drum, trombone
150.
The Sun is the source of heat in a desert. The body temperatures of reptiles, like lizards, change with their environment. Which statement describes how the heat of the sand affects the lizard’s body as it comes out of the shade?
a)
The sand gets cooler when then lizard walks across it.
b)
The lizard’s body temperature increases.
c)
The sand gets warmer when the lizard lays down.
d)
The lizard’s body temperature decreases.
151.
Betty knows that different types of energy are produced by many objects around the house, such as a light bulb.
Which types of energy does the bulb give off?
a)
heat and electric
b)
light and mechanical
c)
light and heat
d)
electric and light
152.
 Ryan rubs two sticks together quickly. When he stops rubbing the sticks, he notices that they are warm to touch where he rubbed them. Which type of energy has been produced?
a)
sound energy
b)
electrical energy
c)
light energy
d)
heat energy
153.
How heat is transfered?
a)
From high to low temperature
b)
From low to high
c)
Up to down
d)
Left to right
154.

Juanita tells to his mother that she wants to go some day to iceland to see beautiful landscape, but his mother says that the temperatures there are around 280 K on may, Juanita convert to Celsius and get:

a)

44.33 ºC

b)

280 ºC

c)

7 ºC

d)

89 ºC

155.

Mariana is at the beach with her parents so she see on a clock that the temperature is 104 ºF, she asks his father what is the temperature in celsius. He father says:

a)

279,5 ºC

b)

40 ºC

c)

55,5 ºC

d)

104 ºC

156.
The faster molecules move, 
a)
the higher the temperature
b)
the less temperature
c)
the same temperature
d)
I don't know
157.

A temperature scale that is used mostly in United States.

According to it, water freezes at 32 degrees and boils at 212 degrees.

a)

Celsius

b)

Fahrenheit

c)

Kelvin

d)

All of them

158.

A device that measures temperature. 

a)
Thermal energy
b)
Temperature
c)
Thermometer
d)
Heat
159.

Heat loss causes matter to ________. Heat gain causes matter to ________.

a)

contract ; expand

b)

expand ; contract

c)

stay ; change

d)

change ; stay

160.

Rahma got an ice cream from her mom. The ice cream melts under the sun because the ice cream ___________.

a)

gains heat from the sun

b)

loses heat to the sun

c)

cannot withstand the heat from the sun

d)

produce too much heat

161.

The pan is made of iron. The handle is NOT too hot to touch. What might the pan's handle be made of?

a)

copper

b)

aluminum

c)

wood

d)

iron

162.
When you touch something that feels cold, 
a)
heat from your hand moves into the cold substance.
b)
coldness moves from the cold substance into your hand.
c)
it melts.
d)
it freezes.
163.

Which description defines heat?

a)

total thermal energy of an object or substance

b)

change in the temperature of a substance in degrees Celsius

c)

energy transferred between objects at different temperatures

d)

average kinetic energy of the particles that make up a substance

164.

How does the thermal energy of the liquid in the larger beaker compare to the thermal energy of the liquid in the smaller beaker?

a)

The liquid in the larger beaker has less thermal energy than the liquid in the smaller beaker.

b)

The liquid in the larger beaker has more thermal energy than the liquid in the smaller beaker.

c)

The liquid in the larger beaker has the same amount of thermal energy as the liquid in the smaller beaker.

d)

The exact volume of the liquid in each beaker must be known to compare the thermal energy of the liquids.

165.

Emerson places a beaker of water on a hotplate and turns the hotplate on. The temperature in the room is 25 ºC. After the water heats to 75 ºC, she adds pieces of ice to the beaker.


Which of the following describes a transfer of heat energy that occurs during this experiment?

a)

from the air to the water

b)

from the ice to the beaker

c)

from the water to the ice

d)

from the water to the hotplate

166.

The water in Mario’s swimming pool absorbs energy as heat during the day. Which of the following would the water in the pool be most likely to do?

a)

condense

b)

evaporate

c)

freeze

d)

melt

167.

As part of a lab experiment, Tasha drops a metal cube into a beaker of water, as shown in the figure below.


After energy in the form of heat transfers between the substances, what is the final temperature of the water?

a)

The final temperature is 25 °C because there is more water than metal.

b)

The final temperature is 50 °C because the metal warms the water to the temperature of the metal.

c)

The final temperature is between 25 °C and 50 °C because energy is transferred from the metal to the water.

d)

The final temperature is between 25 °C and 50 °C because most of the thermal energy is lost to the air around the substances.

168.

The faster the molecules move, the ________ the object is.

a)

warmer

b)

cooler

169.

Heat flows from a warmer place to a cooler one.

a)

True

b)

False

170.

It is the transfer of heat that does not rely upon any contact between the heat source and the heated object.

a)

Conduction

b)

Convection

c)

Radiation

171.

It is the transfer of heat from one place to another by the movement of molecules.

a)

Conduction

b)

Convection

c)

Radiation

172.

It is the transfer of heat between substances that are in direct contact with each other.

a)

Conduction

b)

Convection

c)

Radiation

173.

Identify the mode of heat transfer in the given picture.

a)

Conduction

b)

Convection

c)

Radiation

174.

Identify the mode of heat transfer in the given picture.

a)

Conduction

b)

Convection

c)

Radiation

175.

Identify the mode of heat transfer in the given picture.

(movement of water molecules)

a)

Conduction

b)

Convection

c)

Radiation

176.

Identify the mode of heat transfer in the given picture.

a)

Conduction

b)

Convection

c)

Radiation

177.

Identify the mode of heat transfer in the given picture.

a)

Conduction

b)

Convection

c)

Radiation

178.

Identify the mode of heat transfer in the given situation.

Sunbathing at the beach

a)

Conduction

b)

Convection

c)

Radiation

179.

Identify the mode of heat transfer in the given situation.

Frying a hotdog

a)

Conduction

b)

Convection

c)

Radiation

180.

Identify the mode of heat transfer in the given situation.

Ironing a handkerchief

a)

Conduction

b)

Convection

c)

Radiation

181.

Identify the mode of heat transfer in the given situation.

Drying clothes under the sun

a)

Conduction

b)

Convection

c)

Radiation

182.

Identify the mode of heat transfer in the given situation.

Floating hot air balloon

a)

Conduction

b)

Convection

c)

Radiation

183.

Identify the mode of heat transfer in the given situation.

Cooking steamed siomai

a)

Conduction

b)

Convection

c)

Radiation

184.
A light can be used to keep food warm because it transfers thermal energy by __________.
a)
conduction
b)
convection
c)
radiation
d)
brightness
185.
A substance with a high heat capacity is a better ________ of thermal energy.
a)
conductor
b)
insulator
c)
producer
d)
inducer
186.
Conduction, convection, and radiation can happen at the same time.
a)
TRUE
b)
FALSE
187.
________ is the type of thermal energy transfer that causes a camp fire to warm us.
a)
Conduction
b)
Convection
c)
Radiation
d)
Smores
188.
_________ is the transfer of thermal energy that causes a metal spoon in hot liquid to get hot.
a)
Conduction
b)
Convection
c)
Radiation
d)
Heat
189.
________ describes the motion energy of particles.
a)
Heat
b)
Temperature
c)
Thermal energy
d)
Potential energy
190.
The transfer of thermal energy from one object to another is called _________.
a)
heat
b)
temperature
c)
radiation
d)
potential
191.
A chemical reaction that ______ energy can be used to heat up other substances.
a)
absorbs
b)
consumes
c)
maintains
d)
releases
192.
Thermal energy always moves from a ______ area to a ______ area.
a)
bigger, smaller
b)
colder, hotter
c)
higher, lower
d)
warmer, cooler
193.
Removing thermal energy from a substance causes its atoms to vibrate ______.
a)
constantly
b)
faster
c)
slower
d)
in circles
194.
A substance might freeze when thermal energy is ______ the substance.
a)
added to
b)
removed from
c)
created in
d)
destroyed in
195.
Temperature measures the ______ kinetic energy of the atoms in a substance.
a)
average
b)
maximum
c)
minimum
d)
total
196.
Atoms have kinetic energy because they are always ______.
a)
exploding
b)
motionless
c)
reacting
d)
vibrating
197.
As kinetic energy of the molecules in a substance increases, the temperature __________.
a)
increases
b)
decreases
c)
stays the same
d)
Atoms don't have kinetic energy
198.
What happens to an object as its thermal energy increases?
a)
It heats up.
b)
It cools down.
c)
It doesn't change.
d)
It might freeze.
199.
Kinetic energy is the energy of ______.
a)
Motion
b)
Position
c)
Reaction
d)
Sound
200.
Thermal energy comes from the ______ energy of the atoms and molecules that make up the matter.
a)
Chemical
b)
Electrical
c)
Kinetic
d)
Nuclear