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Thermal Energy Review

Total questions: 50

Worksheet time: 2hrs 36mins

Name
Class
Date
1.

When heat from the Sun travels through space, it is called __________.

a)

radiation

b)

convection

c)

conduction

d)

all of the above

2.

Conduction is __________.

a)

when thermal energy is transferred by a moving gas or liquid

b)

a material that can conduct heat easily

c)

when heat moves between two objects that are touching

d)

when two objects lose heat

3.

Which of the following are insulators?

Check all that are true.

a)

copper

b)

plastic

c)

aluminum

d)

wood

4.

Thermal energy will always move __________.

a)

wherever it is warm

b)

toward the ground

c)

from warm matter to cold matter

d)

from cold matter to warm matter

5.

A large pot of boiling tea has the same temperature as a small cup of boiling tea. The thermal energy is __________.

a)

higher in the large pot of tea

b)

higher in the small cup of tea

c)

impossible to measure

d)

the same in the cup and pot

6.

__________ causes matter to expand.

a)

heat

b)

rain

c)

cold

d)

wind

7.

Thermal energy (heat) always moves from a (1)_______ substance to a (2)_______ substance.

a)

(1) hot

(2) cold

b)

(1) cold

(2) hot

c)

(1) red

(2) blue

d)

(1) blue

(2) red

8.

Carl was at a work party. He held a cube of chocolate in his hand and forgot about it. The chocolate began to melt. His boss walked over and shook his hand. Which of the following statements about thermal energy is true?

a)

Thermal energy traveled from Carl's hand to the chocolate.

b)

Thermal energy traveled from the chocolate to Carl's hand.

c)

Thermal energy did not travel between any substances.

9.

Henry rode his tech deck down a steep hill. He fell off of his tech deck and hit his head on the ground. He went home and his mom gave him an ice pack for his head. Which type of energy transfer is taking place when Henry places the ice pack on his head?

a)

Conduction

b)

Convection

c)

Radiation

10.

Carly was at a camp fire with her family, roasting her marshmallow the right way, by holding her marshmallow away from the fire to get it golden brown. Even though her marshmallow wasn't touching the fire, it was still getting cooked to perfection. What type of energy transfer occurred?

a)

Conduction

b)

Convection

c)

Radiation

11.

Boiling Water

a)

Conduction

b)

Convection

c)

Radiation

12.

Curling Iron

a)

Conduction

b)

Convection

c)

Radiation

13.

Sun Bathing

a)

Conduction

b)

Convection

c)

Radiation

14.
What is a transfer of heat energy by electromagnetic waves?
a)
Radiation
b)
Convection
c)
Conduction
d)
Heat
15.
What is the transfer of heat by movement of liquids or gases?
a)
Radiation
b)
Convection
c)
Conduction
d)
Heat
16.

Radiation is how heat transfers through...

a)

Fluids

b)

Direct Contact

c)

Empty Space

17.

Convection is how heat transfers through...

a)

Fluids

b)

Direct Contact

c)

Empty Space

18.

Conduction is how heat passes through objects by...

a)

Fluids

b)

Direct Contact

c)

Empty Space

19.

Which shows an example of convection?

a)

Jose cooks an egg in a pot of boiling water.

b)

Clara burns her hand by touching a light bulb.

c)

Lucy wraps herself in an electric blanket to keep warm.

d)

Ben holds the end of a metal rod in a fire to cook hot dogs.

20.

Which is an example of radiation?

a)

boiling a pot of noodles for dinner

b)

getting hot from lying in the sun

c)

feeling warm while taking a shower

d)

burning yourself after touching a hot plate

21.
The candle will slowly heat the metal and transfer the heat directly to the mans hand.
a)
conduction
b)
convection
c)
radiation
22.
What is a insulator?
a)
a material that slows the transfer of heat
b)
a material that transfers heat easily
c)
a material that is fluffy
d)
a material that is temperature controlled
23.

What is the BEST example of a conductor of thermal energy?

a)

A wooden block

b)

A wool oven mitt

c)

A plastic mug

d)

A metal pan

24.
What is a conductor?
a)
a material that slows the transfer of heat
b)
a material that transfers heat easily
c)
a material that is fluffy
d)
a material that is temperature controlled
25.

Mittens help keep your hands warm in winter because

a)

they are colorful

b)

they are fuzzy

c)

they are conductors

d)

they are insulators

26.
The handle of a frying pan is often coated in rubber because rubber provides...
a)
Heat insulation
b)
Heat conduction
c)
A low melting point
d)
A nonstick surface
27.
What is NOT an example of an insulator in the kitchen?
a)
An oven mitt
b)
Pots and pans
c)
A wooden spoon
d)
A plastic measuring cup
28.
A conductor allows energy to easily pass by.  
a)
True 
b)
False
29.
An object that doesn't conduct heat well is known as:
a)
a conductor
b)
an insulator
30.
Molecules are always ____________________ (with the exception of absolute zero). 
a)
in motion
b)
frozen
31.
Thermal energy travels...
a)
Hot to cold
b)
Cold to hot
c)
Inside to outside
d)
Outside to inside
32.
What happens to particles as they heat up?
a)
They slow down
b)
Nothing
c)
They don't move
d)
They speed up
33.
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
34.
Hot objects begin to cool as-
a)
cooler air is transferred to the hot object.
b)
thermal energy in the object is transferred to the surrounding air.
c)
atoms in the object react with the oxygen in the air.
d)
thermal energy in the object cancels out energy in the air
35.
Which example below is an example of convection?
a)
Standing on a hot metal bridge
b)
The attic is warmer than the basement
c)
The Sun heating the Earth
d)
Touching hot sand with your feet
36.

When you touch a piece of ice, heat transfers .................

a)

a. from hand to ice.

b)

b. from ice to hand.

c)

c. from hand to air to ice

d)

d. from air to ice.

37.

. ........... is a good conductor of heat

a)

a. Plastic

b)

b. Glass

c)

c. Copper

d)

d. Wood

38.

All the following are good conductors of heat except .................

a)

a. aluminium and iron

b)

b. copper and iron.

c)

c. glass and wood.

d)

d. aluminum and copper.

39.

All of the following are conductors except _______.

a)

metal spoon

b)

wire

c)

iron nail

d)

plastic spoon

40.
The liquid in a thermometer ______________ as the temperature increases.
a)
expands
b)
disappears
c)
freezes
d)
explodes
41.
3. If the atoms of an object are moving or vibrating fast, the temperature would be...
a)
Hot
b)
Cold
c)
Unknown
42.
4. If the atoms of an object are moving or vibrating slow, the object would feel...
a)
Cold
b)
Hot
c)
Unknown
43.
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.
44.
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
45.
Objects gain heat and _________. 
a)
expand
b)
contract
46.

An increase in the volume of a material due to a temperature increase in the material.

a)

Thermal contraction

b)

Thermal expansion

c)

Thermal heat

47.

Thermal expansion occurs when particles of matter move farther apart as temperature increase.

a)

True

b)

False

48.
When objects absorb heat, the particles...
a)
gain energy and vibrate at fixed position.
b)
gain energy and increase in size.
c)
gain energy and move slower.
d)
gain energy and move faster.
49.
Objects gain heat and _________. 
a)
expand
b)
contract
50.

Objects lose heat and _________. 

a)
expand
b)
contract

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