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heat and thermodynamics

Total questions: 147

Worksheet time: 3hrs 28mins

Name
Class
Date
1.

Thermodynamics is the study of...

a)

Movement and Vectors

b)

Atoms and Magnetism

c)

Temperature, Heat and Energy

d)

None of above

2.

These are all examples of temperature scales except...

a)

Celsius

b)

Fahrenheit

c)

Kelvin

d)

Rader

3.

Energy is often transferred from one object to another when they have different amounts of energy.

a)

True

b)

False

4.

Liquids and gases expand as the temperature increases.

a)

True

b)

False

5.

Water freezes at...

a)

Zero Degrees Celsius

b)

273 Kelvin

c)

32 Degrees Fahrenheit

d)

All of the Above

6.

When an object is heated, energy is removed.

a)

True

b)

False

7.

Thermodynamic reactions play critical roles in all of the following except...

a)

Refrigerators

b)

Car Engines

c)

Hitting Baseballs

d)

Polar Icecaps Melting

8.

What is the name of the process where energy is transferred during molecular collisions?

a)

Conduction

b)

Convection

c)

Radiation

d)

none of above

9.

Energy naturally moves from a heat source to a heat ______.

a)

Vacuum

b)

Hole

c)

Sink

d)

None of the Above

10.

Energy and heat can be transferred through a vacuum.

a)

True

b)

False

11.

The average kinetic energy of the molecules in a substance is called what?

a)

Temperature

b)

Heat

c)

Motion

d)

Potential energy

12.

Moving molecules in a substance have what type of energy?

a)

Heat energy

b)

Radiant energy

c)

Temperature energy

d)

Potential energy

13.

Which of the following is an accurate comparison between a small glass of water and a large one, both poured from the same pitcher?

a)

They have the same heat energy, but the larger glass of water has a greater temperature

b)

They have the same temperature, but the larger glass of water has a greater amount of heat energy.

c)

They have the same temperature and heat energy

d)

They have the same temperature, but the smaller glass of water has a greater amount of heat energy.

14.

An endothermic reaction is:

a)

when the system gains heat as the surroundings cool down.

b)

when the system loses heat as the surroundings heat up.

c)

when one or more substances are changed into one or more different substances.

d)

when energy is either created or destroyed

when the reaction involves subatomic particles

15.

An example of an exothermic reaction is:

a)

the lighting of a match

b)

when two chemicals are added together

≈

c)

evaporation of water

d)

the breaking of bonds

16.

Enthalpy change is

a)

the amount of energy as heat that is lost or gained by a system

b)

the total amount of energy in a system

c)

a chemical reaction

d)

when one or more substances are changed into one or more different substances.

17.

Which of the following is the best definition of thermal expansion?

a)

Molecules moving faster

b)

An object increasing in size due to increased temperature

c)

An object decreasing in size due to increased temperature

d)

An object never changing in size

18.

Why does running a jar under hot water make it easier to open?

a)

Because the metal expands into the spaces between the glass threads

b)

Because the gaps between the threads and the lid get larger as it expands

c)

Because hot things are more malleable

d)

It doesn't.

19.

What are the laws of thermodynamics?

a)

Laws that govern the movement of heat -- why and how it moves.

b)

Laws that govern the stationary heat energy.

c)

Laws that describe how molecules are distributed statistically.

d)

Laws that describe how objects move.

20.

Why is the zeroth law of thermodynamics important or necessary?

a)

Because you have to first define your terms, in particular: temperature.

b)

Because you have to first define your terms, in particular: pressure.

c)

It isn't important or necessary, because it's too obvious.

d)

Because you have to understand what thermal equilibrium is.

21.

The second law of thermodynamics states that:

I. Energy can neither be created nor destroyed

II. All free energy cannot be converted into usable energy

III. The entropy of a system increases over time

a)

II and III

b)

I and II

c)

III

d)

I

22.

Which of the following concepts best describes a chlorophyll molecule absorbing light and changing it into chemical energy?

a)

Bernoulli's Principle

b)

Boyle's Law

c)

The Second Law of Thermodynamics

d)

The Law of Conservation of Energy

23.

The fact that energy can be neither created nor destroyed is _____.

a)

Not true

b)

Newton's First Law of Motion

c)

The First Law of Thermodynamics

d)

Einstein's Law

24.

What is a heat engine?

a)

A device that produces motion from heat, and includes gasoline engines and steam engines.

b)

A device that produces heat from motion, and includes gasoline engines and steam engines.

c)

A device that produces heat from motion, and includes a bicycle.

d)

A device that produces motion from heat, and includes a bicycle.

25.

What is thermal energy?

a)

The energy of a substance or system in terms of the motion or vibrations of its molecules.

b)

The energy of a substance or system in terms of the potential energy of its molecules.

c)

The energy of a substance or system in terms of the pressure of its molecules.

d)

The energy of a substance or system as a whole object.

26.

What is heat transfer?

a)

The movement of energy through collisions and movements of molecules, from hot places to cold places.

b)

The movement of energy through collisions and movements of molecules, from cold places to hot places.

c)

The movement of energy through two objects colliding.

d)

The movement of energy through collisions and movements of molecules, from hot places to other hot places.

27.

How are temperature and phase different in terms of molecules?

a)

Temperature is the average movement energy of molecules, whereas phase is related to the potential energy (position) of molecules.

b)

Phase is the average movement energy of molecules, whereas temperature is related to the potential energy (position) of molecules.

c)

Temperature is the average movement energy of molecules, whereas phase is related to how much the molecules stick to each other.

d)

Temperature is a smaller increase in the kinetic energy of molecules than phase.

28.
The sun shines down on this family as the play on the beach.
a)
conduction
b)
convection
c)
radiation
29.
A group of friends gather around a fire to stay warm.
a)
conduction
b)
convection
c)
radiation
30.
The Gulf Stream is a current that brings warm ocean water from the south to the north.
a)
conduction
b)
convection
c)
radiation
31.
Walking on the warm sand sand with your bare feet.
a)
conduction
b)
convection
c)
radiation
32.
The man goes to take the hot pot off the stove with his bare hands.
a)
conduction
b)
convection
c)
radiation
33.
Warm air rises and the cool air sinks.
a)
conduction
b)
convection
c)
radiation
34.
The baby chickens are kept warm from the heat lamps.
a)
conduction
b)
convection
c)
radiation
35.
In some cultures, walking on fire is the ultimate sign of strength.
a)
conduction
b)
convection
c)
radiation
36.
In this experiment, the WARM red dye and the COLD blue dye was placed in the water at the same time. The warm red dye rose to the top while the cold blue dye sank to the bottom.
a)
conduction
b)
convection
c)
radiation
37.
The candle will slowly heat the metal and transfer the heat directly to the mans hand.
a)
conduction
b)
convection
c)
radiation
38.
Johnny accidentally grabbed the handle of the hot pot.
a)
conduction
b)
convection
c)
radiation
39.
The warm air from this heater creates a current when the warm air rises and the cold air sinks.
a)
conduction
b)
convection
c)
radiation
40.
Heat transfers from an area of ____temperature to an area of ___ temperature.
a)
high to low
b)
low to high
c)
high to high
41.
The chocolate bunny and the iron.
a)
conduction
b)
convection
c)
radiation
42.
The chocolate bunny and the lamp.
a)
conduction
b)
convection
c)
radiation
43.
what is the meaning of conduction
a)
when heat transfers from objects that are not touching
b)
heat rise 
c)
cold fall
d)
when heat transfers from objects that are touching
44.
what kind of heat is happening when the sun heats your body
a)
conduction
b)
convection
c)
density
d)
radiation
45.
heat rises
a)
true
b)
false
46.
heat energy traveling through space is an example of _____
a)
convection
b)
density
c)
radiation
d)
conduction
47.
what is the meaning of convection?
a)
cold rises heat falls
b)
heat
c)
cold
d)
hot rises cold falls
48.
What is the temperature on the thermometer?
a)
 28° Celsius    
b)
 20° Fahrenheit       
c)
 18° Celsius      
d)
 20° Celsius      
49.

The biggest heat source for our planet is the ______________________.

a)

Earth

b)

fire

c)

Moon

d)

Sun

50.

Heat is a form of _______.

a)

fuel

b)

matter

c)

electricity

d)

energy

51.

If you dropped a hot rock in a bucket of cold water, the rock will _____________________________.

a)

melt

b)

stay the same temperature

c)

become cooler

d)

become hotter

52.

Temperature and Heat are the same thing?

a)

True

b)

False

53.

Which of the following is NOT a heat source?

a)
b)
c)
d)
54.

What is temperature?

a)

a form of heat

b)

a form of energy

c)

a measure of how old or cold something is

d)

something to measure how hot or cold an object is

55.

What happens when something gains heat?

a)

it becomes hotter

b)

it becomes colder

56.

Which cup contains more heat?

a)

Cup B

b)

Cup C

57.

This is a form of energy that causes materials to become warmer or hotter.

a)

Temperature

b)

Heat

c)

Thermometer

58.

Which of the following statements is true?

a)

The faster the particles move, the lower the temperature.

b)

The faster the particles move, the higher the temperature.

c)

The slower the particles move, the higher the temperature.

59.

Heat travels from cooler objects to warmer objects.

a)

True

b)

False

60.

Which of the following measures temperature?

a)
b)
c)
d)
e)
61.

How does heat travel?

a)

from North to South

b)

from South to North

c)

from cold to hot

d)

from hot to cold

62.

What is temperature scales that used to measure temperature?

a)

Grams

b)

Celsius

c)

Meter

63.

How does heat travel?

a)

Heat travels from a hot place to a cold place.

b)

Heat travels from a cold place to a hot place.

c)

Heat travels in a straight line.

64.

Instrument that can be used to measure how hot or cold an object is ...

a)

heater

b)

Stop watch

c)

thermometer

65.

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)

produce too much heat

66.

How is heat useful to us?Choose 4 correct options.

a)

It keeps us warm

b)

It dries our clothes.

c)

It helps the roots to absorb water.

d)

It is used to cook our food.

e)

It is the energy needed for water cycle to occur.

67.

What happens to water if it gains heat?Choose 3 correct options.

a)

It boils.

b)

It freezes.

c)

It changes its state.

d)

It turns to steam.

e)

It changes its property.

68.
Can heat be created or destroyed?
a)
Yes
b)
No
c)
Only when things are cooling off
d)
Only when things are warming up
69.
When things are hot molecules are moving...
a)
Fast
b)
Slow
c)
They are not moving
d)
They are moving by not fast or slow
70.
When things are cold molecules are moving...
a)
Fast
b)
Slow
c)
They are not moving
d)
They are moving by not fast or slow
71.
Everything has heat
a)
True
b)
False
72.
Heat and Temperature are the same thing
a)
True
b)
False
73.
Heat that is transferred because of touching is called...
a)
Radiation
b)
Conduction
c)
Convection
d)
Reflection
74.
Energy that does NOT need a medium to transfer heat is called...
a)
Radiation
b)
Conduction
c)
Convection
d)
Reflection
75.
Energy that does need a medium (usually air or water) to transfer heat is called...
a)
Radiation
b)
Conduction
c)
Convection
d)
Reflection
76.
Heat passes from...
a)
High to low
b)
Cold to hot
c)
Hot to cold
d)
Heat cannot be passed
77.
What is an insulator?
a)
Something that does NOT absorb heat very well.
b)
Something that absorbs heat.
78.
What is a conductor?
a)
Something that does NOT absorb heat very well.
b)
Something that absorbs heat.
79.
Why do objects cool down?
a)
All heat will slowly be destroyed.
b)
The cold attacks the heat.
c)
Heat is always transferring so the heat will always move to a cooler place.
d)
The heat disappears.
80.
Conduction= 
a)
physical contact
b)
warm air rising
c)
heat moving through empty space
d)
say what?
81.
Radiation= 
a)
physical contact
b)
warm air rising
c)
heat moving through empty space
d)
say what?
82.
Convection= 
a)
physical contact
b)
warm air rising
c)
heat moving through empty space
d)
say what?
83.
When you hold your hands by a fire what type of heat transfer is warming your hands?
a)
convection
b)
conduction
c)
radiation
d)
dance magic
84.
In class we put some candles on a medal spoon. We help one end of the spoon over a flame and watched the heat travel through the spoon and melt the candles on the other side. What kind of heat transfer was this?
a)
conduction
b)
radiation
c)
convection
d)
Harry Potter
85.
Everyday the earth is warmed by the sun. What kind of heat transfer is taking place in this process?
a)
radiation
b)
conduction
c)
convection
d)
what is a 'sun'? 
86.
_____________ occurs when warm air rises and is replaced by cooler air
a)
convection
b)
                                                                                                                  conduction                  
c)
radiation
87.
Which of the following is NOT a form of heat transfer?
a)
decay
b)
conduction
c)
convection
d)
radiation
88.
Which example involves heat transfer through radiation
a)
sitting next to a fire
b)
adding ice to coffee
c)
heating a frying pan on a stove
d)
warm air rising
89.
The three types of heat transfer are...
a)
spilling hot soup in your lap
b)
hot, hotter, and hottest
c)
conduction, convection and radiation
d)
conduction, convection and tickling
90.

What is the transfer of heat by circulation of the heated parts of a liquid or gas?

a)

Conduction

b)

Convection

c)

Coriolis Effect

d)

Radiation

91.

Which best explains how the Earth’s atmosphere is warmed?

a)

Radiation from the sun warms the surface and the atmosphere is heated through conduction and convection.

b)

Radiation from the sun warms the surface and the atmosphere is heated through evaporation and convection.

c)

Convection from the sun warms the surface and the atmosphere is heated through conduction and radiation.

d)

Convection from the sun warms the surface and the atmosphere is heated through evaporation and conduction.

92.

What two processes of heat transfer would cause the water in a pot on the stove to boil?

a)

radiation and convection

b)

conduction and radiation

c)

radiation and evaporation

d)

conduction and convection

93.

What type of energy transfer occurs when two things are in direct contact (touching)?

a)

Condensation

b)

Conduction

c)

Convection

d)

Radiation

94.

Which of the following shows a transfer of energy by means of conduction?

a)

Standing near a warm fire.

b)

Watching a microwave oven cook your food.

c)

Grabbing a metal seat belt buckle after a car has been closed up in the sun all day.

d)

Feeling the breeze that blows over the land during the day and toward the sea later that night.

95.

What is the transfer of heat by the circular movement of molecules?

a)

Condesation

b)

Conduction

c)

Convection

d)

Radiation

96.

To check if an iron is hot, you place your hand near the iron and feel that it is warm without touching it. What type of heat transfer is this?

a)

Condensation

b)

Conduction

c)

Convection

d)

Radiation

97.

When you play outside in the sun too long and receive a sunburn, which type of heat transfer is this?

a)

Conduction

b)

Convection

c)

Evaporation

d)

Radiation

98.

A student must choose three items to demonstrate conduction, convection, and radiation from solar energy. The student quickly chooses water and a metal bowl. Which of the following items should the student choose to complete the experiment?

a)

Rubber ball

b)

food coloring

c)

heat lamp

d)

ice cube

99.

What is the main source of energy that drives all weather patterns?

a)

Sun

b)

Moon

c)

Oceans

d)

Mountains

100.

Heat is _____ if heat is removed from a system

a)

Positive

b)

Negative

c)

Neutral

101.

Work is _______ when work is done BY the system ON the surroundings

a)

Positive

b)

Negative

c)

Neutral

102.

Energy cannot be created or destroyed.

a)

0th law

b)

1st law

c)

2nd law

d)

3rd law

103.

As temperature reaches absolute zero, the entropy of a system approaches a constant minimum.

a)

0th law

b)

1st law

c)

2nd law

d)

3rd law

104.

If two systems are in thermal equilibrium with a third system, than they are in thermal equilibrium with each other.

a)

0th law

b)

1st law

c)

2nd law

d)

3rd law

105.

Which is an example of the 0th law?

a)

0 Kelvin

b)

Chaos cannot decrease

c)

A=B=C

d)

U = W - q

106.

The amount of chaos in a system will always increase.

a)

0th law

b)

1st law

c)

2nd law

d)

3rd law

107.

Which is an example of the 2nd law?

a)

0 Kelvin

b)

Chaos cannot decrease

c)

A=B=C

d)

U = W - q

108.

Chemical reaction where heat is released into the environment

a)

endothermic

b)

exothermic

c)

spontaneous

d)

nonspontaneous

109.

Chemical reaction where heat absorbed into the system

a)

endothermic

b)

exothermic

c)

spontaneous

d)

nonspontaneous

110.

SI unit of heat and energy

a)

kg

b)

°c\degree c

c)

J

d)

km

111.

Which of these shows the arrangement of the molecules of a solid?

a)
b)
c)
112.

If all the molecules below are from the same element, which one has more temperature?

(if the pressure does not change)

a)
b)
c)
113.

Which one is an example of potential energy?

a)
b)
c)
d)
114.

What is heat? Mark the correct option.

a)

Molecular average kinetic energy

b)

Molecular thermal energy

c)

Molecular kinetic energy of only one molecule

d)

Transfer of molecular thermal energy because of a difference in temperature.

115.

What does the word "transfer" mean? Mark the best option.

a)
b)
c)
d)
116.
It is possible to reach absolute zero
a)
true
b)
false
117.
Thermal energy always moves:
a)
From a high temperature object to a lower temperature object.
b)
From a lower temperature object to a higher temperature object.
c)
From an object with lower kinetic energy to an object with higher kinetic energy.
d)
From an object of higher mass to an object of lower mass.
118.
What is "Entropy"?
a)
The tendency of objects to warm up
b)
The tendency of energy to spread out
c)
The tendency of energy to make heat
d)
The tendency of objects to do work
119.
Which would have more entropy?
a)
Frozen ice cream
b)
Liquid Ice cream
120.
In which of the following systems is entropy increasing?
a)
Putting together a puzzle
b)
Putting books on a shelf
c)
Breaking a plate
d)
Filling a jar of salt
121.
What is the name of a device that converts thermal energy into work?
a)
Heating system
b)
Heat engine
c)
Entropy
d)
Power
122.

What method of heat transfer do solar panels rely on?

a)

Conduction

b)

Convection

c)

Radiation

d)

Nucleation

123.

Which law of Thermodynamics helps to explain how car engines work?

a)

Zeroth Law

b)

1st Law

c)

2nd Law

d)

3rd Law

124.

How many types or thermal energy transfer are there?

a)

1

b)

2

c)

3

d)

4

125.

When thermal energy is added to a substance, the substance's particles move:

a)

faster and get farther apart.

b)

faster and get closer together.

c)

More slowly and get farther apart.

d)

More slowly and get closer together.

126.
Heat transfer by conduction occurs when...
a)
particles bump into each other
b)
large numbers of atoms move from place to place
c)
atoms give off heat in the form of electromagnetic waves
d)
electromagnetic waves travel from place to place through a vacuum
127.

The Zeroth Law of Thermodynamics states that if 3 objects are in contact with one another, their temperatures will balance with one another. We call this state:

a)

Thermal Equilibrium

b)

Thermal Expansion

c)

Thermal Conduction

d)

Thermal Blanket

128.

The amount of entropy is a substance/object is related to its temperature. As the temperature of an object APPROACHES absolute 0, what happens to its level of entropy?

a)

It increases

b)

It stays the same

c)

It decreases

d)

It never had any entropy to begin with

129.

What do we call the phase change of a SOLID turning directly into a VAPOR?

a)

Sublimation

b)

Melting

c)

Condensation

d)

Boiling/Evaporation

130.

What do we call the state where all 3 phases of water can exist in equilibrium?

a)

Triple Play

b)

Triple Dipper

c)

Triple Point

d)

Triple Cheeseburger

131.

A student is on the Phase Change Gizmo on Explore learning. Their teacher has asked them to find the boiling point of the mystery liquid in the beaker (it is not water).

How will they know that they have reached the boiling point of the substance?

a)

They will see bubbles forming and the temperature will continue to go up.

b)

They will see bubbles forming and the temperature will go up and down

c)

They will see bubbles forming and the temperature will not change

d)

I have no idea. I did not pay attention when we did this in class.

132.

Thermal expansion only occurs in solids and gases. It doesn’t happen in liquids.

a)

True

b)

False

133.

At the base camp of Mt Everest, the altitude is 5365m above sea level. How does this altitude effect the boiling point of water?

a)

The boiling point is lower because the pressure is higher as altitude increases.

b)

The boiling point is higher because the pressure is higher as the altitude increases.

c)

The boiling point is lower because the pressure is lower as the altitude increases.

d)

The boiling point is higher because the pressure is lower as the altitude increases.

134.

When a hot air balloon is given more heat, the size of the balloon increases and it floats higher in the air. What law explains this?

a)

Boyle's Law

b)

Charles' Law

135.

Temperature is a measure of the amount of the _________________ energy of the molecules

a)

potential

b)

kinetic

c)

chemical

d)

mechanical

136.

Colorado has a elevation of 5,280 ft. In Colorado, its takes 3 extra minutes to cook a hard boiled egg. Why?

a)

The water boils at a lower temperature because their is less pressure. This is why it takes longer to cook.

b)

The water boils at a higher temperature because their is less pressure. This is why it takes longer to cook.

c)

The water boils at a higher temperature because there is less pressure. This is why is takes longer to cook.

d)

The water boils at a lower temperature because their is more pressure. This is why is takes longer to cook.

137.

According to Boyle’s Law, as the pressure on a gas decreases, its volume .

a)

increases

b)

decreases

c)

stays the same

138.

Study on the relationship of ___________including energy and deformation properties of the substance

a)

heat, work and energy

b)

power, work and energy

c)

heat, system and energy

d)

heat, work and boundary

139.

Describe about the picture below

a)

zero law of thermodynamic

b)

Zeroth’s Law of Thermodynamics

c)

Law of thermodynamics

140.

Which has the MOST thermal energy?

a)

HUGE iceberg, the size of a small town

b)

ice cube

c)

cup of hot coffee

d)

5 gallon bucket of room temperature water

141.

Consider 2 blocks of Aluminium (one of 1kg and one of 10 kg) and being supplied with thermal energy.

Which one heats up the fastest?

a)

1 kg

b)

10 kg

c)

They both heat up at the same rate

d)

They don't heat up.

142.
What would be the effect on the particles if more heat is supplied to the system?
a)
They would slow down
b)
They would stop moving
c)
They would speed up
d)
There would be no effect
143.

An old car with a lot of mileage is more likely to break down than a new car that has not been driven a lot. This is an example of...

a)

1st Law of Thermodynamics

b)

2nd Law of Thermodynamics

c)

3rd Law of Thermodynamics

144.
Marcie played with her friends out in the cold, cloudy weather, wearing her wool hat. After the group had finished building snowmen and having snowball fights, Marcie went back inside to warm up and drink some hot chocolate. When she took her hat off, she realized that it was very warm. What happened?
a)
The radiant energy from the sun warmed up her hat and the hat kept that heat from the sun.
b)
�� Her hat was warm because wool fabric is warmer than other fabrics.
c)
The humidity outside made her hat warm.
d)
Conduction between Marcie�s warm body and the hat occurred and the hat remained warm because it is an insulator.
145.
The diagram shows a metal wire with a rubber handle being held in a flame. After a few minutes, which will most likely happen and why?
a)
The metal wire and rubber handle will get hot because they are both good conductors.
b)
The metal wire and rubber handle will remain cool because they are both good insulators.
c)
The metal wire will become hot because it is a good conductor, and the rubber handle will remain cool     because it is good insulator.
d)
The list shows a few objects that produce heat with the help of electricity.
146.

Convert 320F to Celsius

a)

273 K

b)

00 C

c)

0 K

d)

12 o F

147.

Which scale has no negatives units?

a)

Kelvin

b)

Celsius

c)

Fahrenheit

d)

My Scale

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Year 7 science midterm

144 questions

Year 7 science midterm

quiz

Worksheet

•

7th Grade