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Heat

Total questions: 50

Worksheet time: 2hrs 40mins

Name
Class
Date
1.
What is the transfer of heat by direct contact?
a)
Convection
b)
Electromagnetic waves
c)
Radiation
d)
Conduction
2.
Hot coffee is stirred with a spoon; the spoon gets hot due to
a)
conduction
b)
convection
c)
radiation
3.
Near the ceiling of a room the air is warmer; the warm air rises because of
a)
conduction
b)
convection
c)
radiation
4.
Warm air over the beach rises while cooler, dense air from the ocean rushes in due to
a)
conduction
b)
convection
c)
radiation
5.
Warm air rises and the cool air sinks demonstrates this type of heat transfer. 
a)
conduction
b)
convection
c)
radiation
d)
Insolation 
6.
The way the heat is moving from the hot coffee is called...
a)
convection
b)
radiation
c)
insulation
d)
conduction
7.
In how many ways does heat move around the universe?
a)
One
b)
Three
c)
Two
d)
Ten
8.
Walking on the warm sand sand with your bare feet demonstrates this type of heat transfer. 
a)
conduction
b)
convection
c)
radiation
9.
You get sunburned due to __________ from the sun.
a)
conduction
b)
convection
c)
radiation
10.

Sun Bathing

a)

Conduction

b)

Convection

c)

Radiation

11.
In a swimming pool, water near the surface is slightly warmer. The warm water rises because of
a)
conduction
b)
convection
c)
radiation
12.

Which of the following is NOT a source of heat?

a)

friction

b)

electricity

c)

water

d)

the sun

13.

A/an ________________ allows heat to move through it easily.

a)

temperature

b)

thermal energy

c)

conductor

d)

insulator

14.

_____________ is the tool used to measure temperature.

a)

A thermometer

b)

A scale

c)

A ruler

d)

none of the above

15.

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

16.

Temperature and Heat are the same thing?

a)

True

b)

False

17.

Rubbing your hands together on a cold winter day produces heat through ______________.

a)

electricity

b)

chemical reactions

c)

the sun

d)

friction

18.
Which of the following materials would be the best​ conductor of heat?
a)
Plastic
b)
Metal
c)
Stone
d)
Wood
19.
The picture shows yarn made from wool.
Why is wool good to use for making clothes?
a)
 It burns easily.
b)
 It shrinks when it gets wet.
c)
 It blocks out cold wind and holds heat inside.
d)
It comes from an animal.
20.

Without the sun's heat, what would happen to earth?

a)

aliens would invade

b)

the earth would explode

c)

it would be too cold to survive

21.

What is a conductor?

a)

a material that heat moves through easily

b)

a material that heat does not move through easily

c)

a material that turns cold when heated

d)

a tool for measuring temperature

22.

What is an insulator?

a)

a material that heat moves through easily

b)

a material that heat does not move through easily

c)

a material that turns cold when heated

d)

a tool for measuring temperature

23.

What is something that prevents heat, electricity, sound, light...to pass through it?

a)

insulator

b)

conduction

c)

heat transfer

d)

conductor

24.

the transfer of heat in a fluid (gas or liquid) by means of up & down movements called convection currents

a)

conduction

b)

convection

c)

radiation

25.

the transfer of heat through a vacuum (empty space)

a)

conduction

b)

convection

c)

radiation

26.

How does heat move?

a)

from cold to hot

b)

from hot to cold

27.

What is the concept in which two objects in contact with each other transfer heat until they are equal?

a)

thermal equilibrium

b)

thermal energy

c)

thermal equality

d)

thermal heat

28.

What is a measure of the average kinetic energy of the individual particles in an object?

a)

heat

b)

volume

c)

kineticism

d)

temperature

29.

Steam rising from hot soup is an example of...

a)

conduction

b)

convection

c)

radiation

30.
What is the definition of CONDUCTION?
a)
When heat is transferred from objects like rays of light or electromagnetically.
b)
a  hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.
c)
When heat transfers from objects that are touching.
d)
When heat transfers through the heater or AC in your house.
31.
What is the definition of CONVECTION
a)
When heat transfers through the heater or AC in your house.
b)
When heat transfers from objects that are touching.
c)
a  hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.
d)
 hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.
32.
What is the definition of RADIATION
a)
 hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.
b)
When heat is transferred from objects like rays of light or electromagnetically.
c)
When heat transfers from objects that are touching.
d)
When heat transfers through the heater or AC in your house.
33.
The Gulf Stream is a current that brings warm ocean water from the south to the north.
a)
conduction
b)
convection
c)
radiation
34.
What is Thermal Contraction 
a)
A Potato
b)
A decrease in a materials  volume when its temperature decreases 
c)
The movement of fluids in a cycle because of convection 
d)
A material through which  thermal energy does not flow easily.
35.
4. If the atoms of an object are moving or vibrating slow, the object would feel...
a)
Cold
b)
Hot
c)
Unknown
36.
What is Thermal expansion?
a)
The transfer of thermal energy between materials by the collisions of particles 
b)
Is a decrease in a materials volume when temperature decreases 
c)
An increase in a materials volume when temperature increases
d)
Chicken fried rice
37.
Objects gain heat and _________. 
a)
expand
b)
contract
38.

Which of the following is the fastest process of heat transfer?

a)

CONDUCTION

b)

CONVECTION

c)

RADIATION

d)

NONE OF THE ABOVE

39.
Mrs. Hicks is walking on the beach and the heat from the sand is not flowing to her feet. What must be true?
a)
She is walking really fast.
b)
The temperature of the sand and her feet are the same
c)
The sand has more thermal energy
d)
Her feet have more thermal energy
40.

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

41.

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.

42.

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

43.

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

44.
If an object has particles that are moving very quickly, the object 's temperature is probably _____.
a)
cold
b)
slow
c)
big
d)
hot
45.

Which of the following would lose heat the fastest?

a)

150 grams of water

b)

100 grams of water

c)

75 grams of water

d)

50 grams of water

46.

If two objects have the same MASS, how do we decide which one has the MOST thermal energy?

a)

The one with the highest number of atoms.

b)

The one with the lowest temperature.

c)

The one with the highest temperature.

d)

The one with the least number of atoms.

47.

conduction

a)

heat

b)

to get bigger

c)

heat transfer by contact

d)

how hot or cold something is

48.

water is an insulator

a)

true

b)

false

49.
What is the BEST example of an insulator?
a)
A wooden block
b)
A ceramic mug
c)
A glass cup
d)
A metal bowl
50.
Why do bridges have gaps so that the bridge will not buckle? 
a)
thermal insulation
b)
thermal expansion
c)
thermal energy
d)
thermal kinetics

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