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Thermal Energy 2021.2022

Total questions: 61

Worksheet time: 34mins

Name
Class
Date
1.
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
2.
what is conduction?
a)
direct touch
b)
air or liquids
c)
heat waves/ light waves
d)
drinking hot coffee
3.
what is radiation?
a)
direct touch
b)
air or liquids
c)
heat waves/ light waves
d)
touching the cookies out of the oven
4.

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.

5.

When choosing materials to build a fireplace, why is brick a better choice than metal?

a)

Brick is a conductor.

b)

Brick is heat resistant.

c)

Metal is a conductor.

d)

Meat is heat resistant.

6.

Popcorn is made from corn kernels. What happens when kernels are heated in a microwave?

a)

conduction

b)

radiation

c)

convection

d)

listation

7.

Which of the following best describes CONVECTION?

a)

When heat is transferred through waves.

b)

When heat is transferred through objects that are touching.

c)

The movement of gas or liquid in which warmer parts move up and the colder parts moves down.

8.

What kind of heat transfer is occurring when the sun warms the sand?

a)

Conduction

b)

Convection

c)

Radiation

d)

All of them

9.

Warm air rises and the cool air sinks demonstrates this type of heat transfer.

a)

Conduction

b)

Convection

c)

Radiation

10.

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)

low to low

11.

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

a)

conduction

b)

convection

c)

radiation

12.

Ironing a shirt is an example of:

a)

condensation

b)

evaporation

c)

conduction

d)

convection

13.

Clark accidentally grabbed the handle of the hot pt. This shows ______________.

a)

radiation

b)

conduction

c)

convection

14.

You and your friends gathered around a campfire to keep warm. How heat is being transferred?

a)

conduction

b)

convection

c)

radiation

15.

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

a)

conduction

b)

radiation

c)

convection

d)

spaceship

16.

A huge rock at the park really gets hot during the day because of ____________.

a)

conduction.

b)

convection.

c)

radiation.

17.

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

18.

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.

19.
The sun warming your skin is an example of heat transfer through 
a)
conduction
b)
convection
c)
radiation
d)
thermal electricity
20.
Which material is the best conductor of heat?
a)
glass
b)
styrofoam
c)
metal
d)
wood
21.
Heat transfer in boiling water.
a)
Conduction
b)
Convection
c)
Radiation
22.

What kind of heat transfer is occurring when the sun warms the sand?

a)

Conduction

b)

Convection

c)

Radiation

d)

All of them

23.

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

a)

convection

b)

conduction

c)

radiation

d)

hot air balloon

24.
The baby chickens are kept warm from the heat lamps.  This demonstrates what kind of heat transfer? 
a)
conduction
b)
convection
c)
radiation
25.
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
26.
Radiation is how energy from the sun is transferred to Earth.
a)
true
b)
false
27.
The transfer of thermal energy through a substance by direct contact is called___.
a)
conduction
b)
insulation
c)
convection
d)
radiation
28.
The transfer of thermal energy from one place to another by the the movement of fluids is
a)
convection
b)
conduction 
c)
radiation
d)
thermal energy
29.
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
30.
______ occurs when a cooler, denser mass of a liquid or gas replaces a warmer, less dense mass of a gas or liquid
a)
Convection
b)
Conduction
c)
Radiation
31.

Heat transfer always occurs

a)

from cold to hot.

b)

from hot to cold.

c)

in any direction.

32.

Convection is heat transfer by-

a)

touch.

b)

currents.

c)

waves.

33.

Conduction is heat transfer by

a)

touch.

b)

currents.

c)

waves.

34.

Radiation is heat transfer by

a)

touch.

b)

current.

c)

waves.

35.

The sun's rays are an example of

a)

conduction.

b)

convection.

c)

radiation.

36.

Water molecules in boiling water is an example of

a)

conduction.

b)

convection.

c)

radiation.

37.

Burning your hand on a hot pan is an example of

a)

conduction.

b)

convection.

c)

radiation.

38.

Heat transfer from a fire is an example of

a)

conduction.

b)

convection.

c)

radiation.

39.

Ironing a shirt is an example of

a)

conduction.

b)

convection.

c)

radiation.

40.

The transfer of heat energy through direct contact is

a)

conduction.

b)

convection.

c)

radiation.

41.

The transfer of heat energy by the rising of warmer molecules and falling of cooler molecules is

a)

conduction.

b)

convection.

c)

radiation.

42.

What type of heat transfer occurs from the sun to the Earth?

a)

Conduction

b)

Convection

c)

Radiation

43.

What type of heat transfer occurs when warm air rises and cool air falls back down to Earth?

a)

Conduction

b)

Convection

c)

Radiation

44.

What heat transfers by direct contact?

a)

Conduction

b)

Convection

c)

Radiation

45.

What heat transfers in the form of waves?

a)

Convection

b)

Conduction

c)

Radiation

46.

Hot air balloons work using what type of heat transfer?

a)

Convection

b)

Conduction

c)

Radiation

47.

Lighting a candle with a match is an example of what type of heat transfer?

a)

Convection

b)

Conduction

c)

Radiation

48.

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)

low to low

49.

The sidewalk burns your bare feet in the summer time is an example of

a)

Conduction

b)

Convection

c)

Radiation

d)

Plasma

50.

A material that prevents the flow of heat

a)

Conductor

b)

Insulator

c)

Metal

d)

Plasma

51.

What are the main 3 states of matter?

a)

California, New York, Nevada

b)

Ice, air, water

c)

happy, sad, mad

d)

Solid, liquid, gas

52.

Hot chocolate is stirred with a spoon and the spoon gets hot is an example of

a)

Conduction

b)

Convection

c)

Radiation

d)

Plasma

53.

A material that allows or helps the flow of heat.

a)

Insulator

b)

Salinity

c)

Conductor

d)

Plasma

54.

A metal hammer heats up sitting outside on a sunny day is an example of

a)

Conduction

b)

Convection

c)

Radiation

d)

Condensation

55.

Holding a hot cup of cocoa is an example of which type of heat transfer?

a)

convection

b)

conduction

c)

radiation

56.

Thermal energy traveling though space from the sun toward earth in waves is an example of which type of heat transfer?

a)

convection

b)

conduction

c)

radiation

57.

Lava in a lava lamp rising and falling as its heated and cools is an example of:

a)

conduction

b)

convection

c)

radiation

58.

Feet getting warm while in hot sand on the beach is an example of which type of heat transfer?

a)

conduction

b)

convection

c)

radiation

59.

Warming your hands near a campfire is an example of:

a)

convection

b)

conduction

c)

radiation

60.

Which type of heat transfer is happening INSIDE the pot on the stove?

a)

convection

b)

conduction

c)

radiation

61.

Observe the picture. What does letter "b" represent in terms of heat transfer?

a)

conduction

b)

convection

c)

radiation