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Thermal Energy

Total questions: 51

Worksheet time: 45mins

Name
Class
Date
1.
Conduction can only occur between two objects when –
a)
one object is less dense than the other.
b)
both objects are in physical contact with each other.
c)
one of the objects is made of a metal.
d)
both objects are exactly the same temperature.
2.

In the situation illustrated, how will heat energy move? Heat energy will be transferred from –

a)

the hot plate to the water by conduction

b)

the water to the hot plate by conduction.

3.
Radiation is a method of thermal energy transfer that moves -
a)
through empty space.
b)
when objects touch.
c)
only through solids.
d)
in the motion of fluids.
4.
Which of the following is an example of conduction?
a)
Solar energy warming a room.
b)
Heat rising from the coils of a stove.
c)
Hot air drying a wet towel.
d)
Heat moving from a clothes iron to a shirt.
5.
Heat transfer in boiling water.
a)
Conduction
b)
Convection
c)
Radiation
6.
On a cold rainy day a baby is touching a cold window.  It feels so cold. Which way is the heat moving moving? 
a)
Cold is moving from the window to the hand.
b)
Heat is moving from the hand to the window.
c)
Heat doesn't move.
d)
It moves in currents
7.
Heat transfer in wind.
a)
conduction
b)
convection
c)
radiation
8.
Heat transfers from an area of ____temperature to an area of ___ temperature.
a)
high to low
b)
low to high
c)
high to high
d)
It can travel high to low and low to high. 
9.
The baby chickens are kept warm from the heat lamps demonstrates this type of heat transfer. 
a)
conduction
b)
convection
c)
radiation
10.
Warm air rises and the cool air sinks demonstrates this type of heat transfer. 
a)
conduction
b)
convection
c)
radiation
d)
Insolation 
11.
Heat transfer occurs
a)
in many directions
b)
both from warm objects to colder ones and from cold objects to warmer ones.
c)
only from warm objects to colder ones.
d)
only from cold objects to warmer ones.
12.
A barefoot student steps on a hot concrete surface. Most of the heat transferred to the student’s skin by this contact is by the process of—
a)
convection
b)
conduction
c)
vaporization
d)
radiation
13.
The diagram to the right shows a solid iron bar that is being heated in a flame. The primary method of heat transfer in the solid iron bar is—
a)
convection
b)
conduction
c)
absorption
d)
radiation
14.
what is radiation?
a)
direct touch
b)
air or liquids
c)
heat waves/ light waves
d)
touching the cookies out of the oven
15.
TRUE or FALSE?  Frying pans made for cooking are made of metal because metals are good CONDUCTORS of heat energy.
a)
True
b)
False
16.

Which type of heat transfer is shown?

a)

convection

b)

conduction

c)

radiation

d)

ironing

17.
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
18.

Which best describes the process of convection?

a)

Convection is the primary way heat travels through rays.

b)

---

c)

Convection is the primary way heat travels through appliances.

d)

Convection is the primary way heat travels through liquids and gasses.

19.

Thermal energy being transferred from a hot mug of cocoa to the table it is sitting on is an example of __________.

a)

convection

b)

conduction

c)

radiation

d)

chemistry

20.

Which best explains how this roasting marshmallows happens?

a)

Heat from the fire is conducted to the marshmallow.

b)

Heat from the fire is radiated to the marshmallow.

c)

The coolness of the marshmallow is conducted to the fire.

d)

The coolness of the marshmallow is radiated to the fire.

21.

Which best describes heat transfer by radiation?

a)

A slice of bacon frying in a pan.

b)

A pot on a stove boiling water.

c)

Cooking a hotdog in a microwave.

d)

A hot air balloon.

22.

Walking on hot sand with your bare feet shows this type of heat transfer.

a)

conduction

b)

convection

c)

radiation

23.

This is the transfer of thermal energy through "space".

a)

conduction

b)

radiation

c)

convection

d)

spaceship

24.
Which material is the best conductor of heat?
a)
glass
b)
styrofoam
c)
metal
d)
wood
25.

Which type of heat transfer is happening inside the hot air balloon?

a)

convection

b)

conduction

c)

radiation

d)

hot air balloon

26.

Thermal Energy will ALWAYS be thermal energy.

a)

True

b)

False

27.

All three types of heat transfer can be present at one time.

a)

True

b)

False

28.

What would happen if you increased the temperature in a room?

a)

Amount of thermal energy stays the same.

b)

Amount of thermal energy decreases.

c)

Amount of thermal energy increases.

29.

What would happen to the atoms in a system if the temperature decreased?

a)

The atoms would have less kinetic energy and move slower.

b)

The atoms would have the same amount of kinetic energy and move at the same rate.

c)

The atoms would have more kinetic energy and move faster.

30.

In which beaker is there more kinetic energy?

a)

A

b)

B

c)

C

31.

Heat can only be transferred in one method.

a)

true

b)

false

32.

The energy of moving particles is called _____.

a)

sound energy

b)

heat or thermal energy

c)

light energy

d)

mechanical energy

33.

When particles are heated they begin to ____.

a)

move faster

b)

mover slower

c)

move up

d)

jump out of the pot

34.

A large amount of matter needs ______ thermal energy to warm up than a small amount of matter.

a)

less

b)

the same amount of

c)

more

d)

no

35.

The Greek prefix thermo- means _____.

a)

thermometer

b)

heat

c)

sun

d)

microwave

36.

What tool is used to measure temperature?

a)

a stove

b)

a beaker

c)

a thermometer

d)

a glove

37.

Why would the temperature of boiling water be higher than the temperature of ice water?

a)

Because the particles in the boiling water are moving faster.

b)

Because the particles in the boiling water aren't moving at all.

c)

Because the particles in the boiling water are moving slower.

d)

Because the particles in the boiling water are moving at the same speed.

38.

Different substance's particles speed up at different rates.

a)

True

b)

False

39.

When thermal energy is applied to an ice cube, it _____.

a)

freezes

b)

stays the same

c)

tastes better

d)

melts

40.

What transfer heat through direct contact

a)

Convection

b)

Radiation

c)

Conduction

d)

Heat Equilibrium

41.

Hot things have ____________ thermal energy than cold things

a)

more

b)

less

c)

same

42.

As temperature increases, molecules _____________

a)

move slower

b)

move the same

c)

move faster

43.

Cold things often have a _________ kinetic energy because_______

a)

lower; particles are moving around less

b)

lower; particles are moving around more

c)

higher; particles are moving around the same

44.
To measure the temperature difference between two cups of water, you would use a _____.
a)
ruler
b)
balance scale
c)

thermometer

45.
What is the transfer of heat by movement of liquids or gases?
a)
conduction
b)
convection
c)
radiation
46.
You buy a lava lamp from the store. As the lamp heats up, blobs of liquid rise to the top then sink back down to the bottom. This process continues because of _?_.
a)
conduction
b)
convection
c)
radiation
47.
What happens when ice cubes melt in a glass?
a)
Heat travels from the ice to the warmer water.
b)
No energy is transferred.
c)
Heat is transferred from the warmer water to the ice cubes.
48.

In heat transfer, heat always flows from the _?_ substance to the _?_ substance.

a)

hotter to colder

b)

colder to hotter

c)

colder to colder

49.

Which of the following is an example of heat transfer through radiation?

a)

Sunlight warming the Earth

b)

Boiling water circulating in a pot

c)

Touching a hot stove

d)

Ice melting in your hand

50.

What happens to the particles of a substance as it is heated?

a)

They move slower and closer together

b)

They move faster and spread apart

c)

They stop moving completely

d)

They remain at the same speed

51.

What happens to the molecules in a substance when it is heated?

a)

The molecules move slower and have less energy

b)

The molecules move faster and have more energy

c)

The molecules stop moving

d)

The molecules move at the same speed

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