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Grade 7 Heat and Temperature Unit Review

Total questions: 72

Worksheet time: 52mins

Name
Class
Date
1.

Which of the following is NOT a way heat is transferred?

a)

Conduction

b)

Convection

c)

Radiation

d)

condensation

2.

What state of matter would a chocolate chip cookie be?

a)

Solid

b)

Delicious

c)

Liquid

d)

Gas

3.

In a (a)   the particles are packed tight and in a pattern.

4.

In a (a)   the particles are close together but can flow and change shape.

5.

In a (a)   the particles are free and move away from each other as much as possible.

6.

What happens to particles when they are heated up?

a)

The contract

b)

They move slow

c)

The expand

d)

The make noise

7.

What happens to particles when they are cooled?

a)

They expand

b)

They move quicker

c)

They contract

d)

They put on sweaters

8.

Temperature is the (a)   kinetic energy of the particles of a substance

9.

Heat energy is the transfer from matter that has a (a)   temperature to something at a lower temperature

10.

When I stir hot soup with a metal spoon, and the spoon burns my hand, that is an example of _______?

a)

convection

b)

radiation

c)

conduction

d)

thermal heat

11.

Putting a furnace in the basement so the hot air rises throughout the house is an example of _____?

a)

convection

b)

radiation

c)

conduction

d)

thermal radiation

12.

Heat from the sun warming up Earth is an example of ______?

a)

convection

b)

radiation

c)

conduction

d)

Thermal heat

13.

What form of heat transfer can only occur in space?

a)

conduction

b)

radiation

c)

convection

14.

What form of heat transfer CANNOT occur in a liquid?

a)

conduction

b)

radiation

c)

convection

15.

What form of heat transfer can only occur in a gas?

a)

conduction

b)

radiation

c)

convection

16.

What is the name of the device used to regulate the temperature of your house?

a)

furnace

b)

thermostat

c)

electric heater

17.

What can you put in the walls and roof of your house to keep the heat in or out of your house?

a)

thermostat

b)

insulation

c)

curtains

18.

Why is it important to conserve energy?

a)

So we spend more money on heating/cooling

b)

To make hour houses look cool

c)

To save resources in our environment

19.

Heat is...

a)

the movement of thermal energy from an area of higher temperature to an area of lower

b)

the movement of thermal energy from an area of lower temperature to an area of higher

c)

the movement of thermal energy from an area of higher temperature to an area of higher

d)

the movement of thermal energy from an area of lower temperature to an area of lower

20.

Which temperature scale is used by scientists?

a)

Fahrenheit

b)

Celsius

c)

Frankenstein

d)

Stauffenheit

21.

The transfer of thermal energy caused by collisions between particles is called

a)

conduction

b)

convection

c)

radiation

d)

irrigation

e)

navigation

22.

The transfer of thermal energy caused by electromagnetic waves

a)

convection

b)

conduction

c)

radiation

d)

recreation

e)

avocation

23.

The transfer of thermal energy caused by the movement of particles from one part of a material to another is called

a)

conduction

b)

convection

c)

constipation

d)

transportation

e)

obfuscation

24.

An object that energy moves through quickly is called a

a)

insulator

b)

conductor

c)

obstructor

d)

contractor

e)

doctor

25.

An object that energy moves through slowly is called a

a)

conductor

b)

insulator

c)

chiropractor

d)

retractor

e)

detector

26.

Sean ordered a cup of hot chocolate at a coffee shop. As he began to take a sip he realized that it was too hot to drink but he does not want to wait to drink it. What should Sean do to lower the temperature of the hot chocolate?

a)

He can pour it in to a bigger cup.

b)

He can remove heat by adding ice.

c)

He can add more hot chocolate to the cup.

d)

He can remove some of the hot chocolate from the cup.

27.

At room temperature, the metal mercury is a liquid. How could mercury be changed into a solid?

a)

by adding heat

b)

by removing heat

c)

by decreasing the density of the mercury

d)

by isolating the mercury from outside forces

28.

In order to make iced tea Lois brings a pitcher of water to a boil, adds tea and allows it to steep for 5 minutes. After 5 minutes have passed Lois removes the tea bag and adds ice to cool the tea. Which of the following best describes the direction of the flow of thermal energy?

a)

Thermal energy flows from the tea to the ice.

b)

Thermal energy flows from the ice to the tea.

c)

Thermal energy flows between the ice to the air equally.

d)

Thermal energy flows between the ice and the tea equally.

29.

An air conditioner cools a room. The cool air sinks and the warmer air rises. This is an example of

a)

radiation

b)

conduction

c)

convection

d)

constipation

e)

reiteration

30.

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

31.
The measure of average kinetic energy of all the particles within an object is called ____________. 
a)
temperature
b)
conduction
c)
radiation
d)
heat 
32.
heat always travels from _____ to ______ objects
a)
hot to cold
b)
cold to hot
c)
cold to cold
d)
hot to hot
33.
No Definite Shape and No Definite Volume
a)
Gas
b)
Liquid
c)
Solid
34.
When the temperature of matter decreases the particles ...
a)
speed up and move farther apart
b)
speed up and move closer together
c)
slow down and move farther apart
d)
slow down and move closer together
35.
When air in a hot air balloon is heated the air inside the baloon...
a)
expands
b)
contracts
c)
evaporates
d)
condenses
36.
As the kinetic energy of the molecules in a substance increases, the temperature of the substance __________.
a)
increases
b)
decreases
37.
High temperature is connected to:
a)
Low kinetic energy.
b)
High kinetic energy.
c)
Zero net energy.
d)
Equal kinetic energies.
38.
Which substance is the gas?
a)
A
b)
B
c)
C
39.

How does a device made up of two different metals joined together operate to control devices or appliances?

a)

By generating a magnetic field.

b)

By emitting light when heated.

c)

By producing heat directly.

d)

By expanding and contracting in response to temperature changes.

40.

What is the result of particles within a substance moving more due to the gain of heat energy?

a)

More space between them

b)

Less space between them

c)

No change in space

d)

They become solid

41.

In which state of matter (solids, liquids, or gases) does the volume change the most with temperature?

a)

solids

b)

liquids

c)

gases

d)

all states change equally

42.

What term is used to describe the process when a substance changes from a liquid to a gas?

a)

Evaporation

b)

Condensation

c)

Freezing

d)

Melting

43.

When a substance changes from a gas to a liquid, what is this process called?

a)

Sublimation

b)

Condensation

c)

Evaporation

d)

Freezing

44.

During which change of state does a substance absorb heat energy from its surroundings?

a)

Condensation

b)

Freezing

c)

Deposition

d)

Evaporation

45.

If you have a piece of dry ice and it turns directly into water vapor without becoming a liquid first, what process is this?

a)

Melting

b)

Sublimation

c)

Freezing

d)

Condensation

46.

What describes the process of convection currents in fluids?

a)

The random movement of individual particles within the fluid.

b)

The direct collisions between particles leading to fluid movement.

c)

The upward movement of warmer, less dense fluid and the downward movement of cooler, denser fluid.

d)

The transfer of thermal energy through electromagnetic waves within the fluid.

47.

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.

48.
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.
49.

A device that measures temperature. 

a)
Thermal energy
b)
Temperature
c)
Thermometer
d)
Heat
50.
The heat from a lamp allows a lizard to remain warm. This is an example of which type of heat transfer?
a)
radiation
b)
conduction
c)
convection
d)
insulation
51.
What is the BEST example of a conductor? 
a)
A wooden block
b)
A ceramic mug
c)
A glass cup
d)
A metal bowl
52.

When I drink coffee in the morning, I warm my hands on the mug by what type of heat transfer?

a)

conduction

b)

convection

c)

radiation

d)

coziness

53.

Which characteristic is included in the particle theory of matter?

a)

All matter is made up of tiny particles

b)

All particles in a pure substance are the same

c)

Particles are always moving

d)

All of the above

54.

Which characteristic is included in the particle theory of matter?

a)

All matter is made up of tiny particles

b)

All particles in a pure substance are the same

c)

Particles are always moving

d)

All of the above

55.

Which phase change takes place when a liquid turns into a solid...

a)

melting

b)

condensation

c)

freezing

d)

evaporation

56.

What phase change occurs when a gas turns into a liquid

a)

freezing

b)

condensation

c)

melting

d)

evaporation

57.

Temperature depends on --------------------- of the particle?

a)

Kinetic energy

b)

Thermal Energy

c)

Power Energy

58.
Matter that always fills the shape in a container, such as air.
a)
solid
b)
liquid
c)
gas
59.
Milk takes the shape of its container because it is a:
a)
solid
b)
liquid
c)
gas
60.
Boiling
a)
liquid to gas
b)
gas to solid
c)
gas to liquid
d)
solid to liquid
61.

Which state of matter does not have a definite shape but does have a definite volume?

a)

Solid

b)

Liquid

c)

Gas

62.

What effect will the heat have on the air inside the bottle/balloon?

a)

Thermal contraction.

b)

Temperature decrease.

c)

Thermal expansion.

d)

Change in state.

63.

Analyze the image. What effect will heat have on object 1 after a while?

a)

Temperature decrease.

b)

Temperature increase.

c)

Thermal expansion.

d)

Change in state.

64.
This is a picture of ?
a)
Active solar
b)
Passive solar
c)
None of the above
65.
Thermal energy is
a)
measure of how hot or cold matter is.
b)
the total kinetic energy of all the particles the substance contains.
c)
the energy that transfers from one substance to another because of differences in kinetic energy.
d)
The number of particles in a substance
66.
Energy produced by a dam on a river is 
a)
wind
b)
hydroelectric
c)
solar
d)
nuclear
67.
An example of a conductor is
a)
styrofoam
b)
wool
c)
copper
d)
plastic
68.
The water in each is the same temperature. Which container has the most thermal energy?
a)
The one on the left, because there is more matter
b)
The one on the right because there is less matter
c)
They have the same amount of thermal energy
69.
Based on this thermal image, how would you reduce heat loss in this building?
a)
insulate the walls
b)
add high-efficiency windows
c)
insulate the roof
d)
Fix air leaks
70.
An example of a renewable resource
a)
wind
b)
coal
c)
nuclear
d)
natural gas
71.
A system that heats a whole house is 
a)
local heating
b)
central heating
c)
thermostat
d)
radiator
72.
A system that reduces wasted heat by creating heat and electricity at the same time
a)
local heating
b)
passive solar
c)
wind energy
d)
cogeneration

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