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Worksheets

Heat Transfer

Total questions: 35

Worksheet time: 48mins

Name
Class
Date
1.

Heating food in a microwave oven.

a)

Conduction

b)

Convection

c)

Radiation

2.

The butter on top of the pancake melted.

a)

Conduction

b)

Convection

c)

Radiation

3.

Air conditioner cooling the hot room.

a)

Conduction

b)

Convection

c)

Radiation

4.

Adding hot water to your cold bath water.

a)

Conduction

b)

Convection

c)

Radiation

5.

Ironing a wrinkled shirt.

a)

Conduction

b)

Convection

c)

Radiation

6.

Laying under the sun to get tan.

a)

Conduction

b)

Convection

c)

Radiation

7.

An ice cube melts when you hold it in your hand.

a)

Conduction

b)

Convection

c)

Radiation

8.

You feel hot after reading for a long time under a lamp.

a)

Conduction

b)

Convection

c)

Radiation

9.

Hair gets hot when a hair straightener is used on it.

a)

Conduction

b)

Convection

c)

Radiation

10.

A bowl of soup cools.

a)

Conduction

b)

Convection

c)

Radiation

11.
Heat is a form of _______________.  
a)
movement
b)
energy
c)
melting
12.

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

13.
A group of friends gather around a fire to stay warm.
a)
conduction
b)
convection
c)
radiation
14.
Blow drying your wet hair.
a)
conduction
b)
convection
c)
radiation
15.
Warm air rises and the cool air sinks.
a)
conduction
b)
convection
c)
radiation
16.
In some cultures, walking on fire is the ultimate sign of strength.
a)
conduction
b)
convection
c)
radiation
17.
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
18.
Molecules in cold things move more _________
than in hot things.
a)
quickly
b)
slowly
c)
happily
d)
merrily
19.

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

a)

Condensation

b)

Conduction

c)

Convection

d)

Radiation

20.

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.

21.

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

a)

Condesation

b)

Conduction

c)

Convection

d)

Radiation

22.

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

23.
Heat makes things _______________________
a)
colder
b)
warmer
c)
faster
24.
Heat is a form of _______________.  
a)
movement
b)
energy
c)
melting
25.

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

26.

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

27.

Which of these is a better conductor?

a)
b)
28.

Stir frying vegetables is an example of

a)

Convection

b)

Conduction

c)

Radiation

29.

Hot water rises and cold water sinks. Is this:

a)

Convection

b)

Conduction

c)

Radiation

30.
The sun shines down on this family as the play on the beach.
a)
conduction
b)
convection
c)
radiation
31.

Cold Pack on Person

a)

Heat is transferred from the cold pack to the person.

b)

Heat is transferred from the person to the cold pack

c)

The cold pack is getting colder. The person is getting warmer.

32.

Boiling Water

a)

Conduction

b)

Convection

c)

Radiation

33.

Sun Bathing

a)

Conduction

b)

Convection

c)

Radiation

34.

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

35.

Which is the best example of conduction?

a)

boiling a pot of water

b)

feeling heat from a fireplace

c)

a hot air balloon rising and falling

d)

touching a hot handle and getting burned