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Ch. 5 Thermal Energy Test

Total questions: 50

Worksheet time: 50mins

Name
Class
Date
1.

Thermal energy is NOT transferred

a)

from cold to hot

b)

by convection

c)

from hot to cold

d)

by radiation

2.

Conduction takes place most effectively in

a)

solids

b)

the Bermuda triangle

c)

gases

d)

a vacuum

3.

Wood and plastic are used as handles on pots because they are

a)

conductors

b)

insulators

c)

so so beautiful

d)

noncombustible

4.

When molecules move in the currents of fluids, thermal energy is transferred by

a)

conduction

b)

radiation

c)

convection

d)

fluition

5.

An example of a good conductor is

a)

glass

b)

silver

c)

wood

d)

plastic

6.

Thermal energy from the sun reaches the Earth by

a)

convection

b)

conduction

c)

wind

d)

radiation

7.

Higher temperatures indicate __________.

a)

slower motion of molecules

b)

ice, ice, baby

c)

faster motion of molecules

d)

molecules at rest

8.

The boiling point of water is __________.

a)

100 K

b)

0 degrees C

c)

100 degrees F

d)

100 degrees C

9.

If you hold a paper cup containing hot cider in your hand, thermal energy...

a)

does not flow

b)

flows from the air to the hot cider

c)

flows from the hot cider to your hand

d)

WHERE IS THE HOT CHOCOLATE???

10.

Which of the following is not a good insulator?

a)

a pocket of air

b)

blubber on your finger

c)

a down jacket

d)

copper wire

11.

The type of heat transfer that does NOT require a medium to travel through is known as __________.

a)

convection

b)

radiation

c)

conduction

d)

magic superpowers

12.

What type? Tomato soup boiling on the stove.

a)

conduction

b)

convection

c)

radiation

13.

What type? Sun heating the inside of a car.

a)

conduction

b)

convection

c)

radiation

14.

Which object has these energy transformations taking place?

Kinetic-->Mechanical---->Electrical

a)

Food consumption

b)

Lamp

c)

Windmill

d)

Match

15.

Which object has these energy transformations taking place?

Solar---> Chemical--> Potential, Kinetic

a)

Nuclear Power Plant

b)

Photosynthesis

c)

Geothermal Power Plant

16.

What type? A room heated by an air vent

a)

conduction

b)

convection

c)

radiation

17.

What type? Heat from the sun going through space

a)

conduction

b)

convection

c)

radiation

18.

What type? Heated fluids rise and form currents

a)

convection

b)

radiation

19.

What type? Works best with metals like silver and copper

a)

conduction

b)

convection

c)

radiation

20.

Which state of matter has the most energy?

a)

solid

b)

liquid

c)

gas or plasma

d)

they are all the same

21.

Which state of matter has the greatest density?

a)

solid

b)

liquid

c)

gas

d)

density stays the same in all the states

22.

What happens to temperature during a phase change?

a)

temperature stays the same

b)

temperature increases

c)

temperature decreases

23.

Which object has these energy transformations taking place?

Electric-->Thermal, Light, Kinetic, Sound

a)

Lamp

b)

Windmill

c)

Photosynthesis

d)

Toaster

24.

When the girl in the lab we did ate then pedaled the bike she was changing______

into___________.

a)

chemical, potential

b)

thermal, kinetic

c)

chemical, kinetic

d)

thermal, potential

25.

Temperature is defined as:

a)

Average kinetic energy of all the particles in a material

b)

The highest amount of kinetic energy in an object

c)

The lowest amount of kinetic energy in a pot

d)

Average amount of food in a refrigerator

26.

What is a conductor?

a)

Water in a teapot

b)

Energy coursing through your veins

c)

Food in your fridge

d)

A substance that allows the flow of electrical charge or transfers thermal energy through matter

27.

What is an insulator?

a)

A substance that conducts energy

b)

A material that conducts electrical current

c)

A material that does not conduct heat or electric current

d)

Exposed wires (dangerous)

28.

Heat that is transferred by direct touch is

a)

conduction

b)

convection

c)

radiation

29.

Heat transfer in a liquid or gas due to less dense, warmer matter rising and denser, cooler matter falling.

a)

Convection

b)

Radiation

c)

Conduction

d)

Temperature

30.

Movement of heat in the form of electromagnetic waves, which can travel through a vacuum.

a)

Radiation

b)

Conduction

c)

Convection

d)

Temperature

31.

Which type of heat transfer is most correct when touching a metal handle of a hot pan?

a)

Convection

b)

Conduction

c)

Radiation

d)

Temperature

32.

Which type of heat transfer assists in the circulation of water in a hot water system?

a)

Conduction

b)

Convection

c)

Radiation

d)

Temperature

33.

The movement of energy from a warmer object to a cooler object is called?

a)

Conduction

b)

Heat Transfer

c)

Radiation

34.

In the system with the kettle, thermal energy from the flames of the fire transfers energy to the kettle causing the liquid to become steam. The mechanical energy spins the turbines which generates ___________energy.

a)

Thermal

b)

Potential

c)

Nuclear

d)

Electrical

35.

Sun's light, warming the Earth is an example of __________.

a)
Radiation
b)

Convection

c)

Conduction

d)

Mechanical

36.

Air conditioner cooling a room is an example of ________.

a)
Conduction
b)

convection

c)

radiation

37.

Water boiling

a)

Conduction

b)

Convection

c)

Radiation

38.

In a solar panel, light energy from the sunlight

causes solar panels to create __________

energy.

a)

Nuclear

b)

Electrical

c)

Radiation

d)

Convection

39.

Identify the method of heat transfer shown in the image: Marshmallow over a campfire.

a)

Conduction

b)

Convection

c)

Radiation

40.

Identify the method of heat transfer shown in the image: Chocolate melting in your hand.

a)

Conduction

b)

Convection

c)

Radiation

41.

Air currents (wind)

a)

conduction

b)

convection

c)

radiation

42.

Movement of Earth's mantle

a)

conduction

b)

convection

c)

radiation

43.

Which method of heat transfer is demonstrated by the pan heating on a stove? [diagram]

a)

conduction

b)

convection

c)

radiation

44.

Which method of heat transfer explains why the 2nd story of a building is warmer than the 1st?

a)

conduction

b)

convection

c)

radiation

45.

Hot car seat from the Sun

a)

conduction

b)

convection

c)

radiation

46.

Bottom of the pool is colder than the surface

a)

conduction

b)

convection

c)

radiation

47.

Identify the method of heat transfer depicted in the image of food being cooked in a microwave.

a)

conduction

b)

convection

c)

radiation

48.

Identify the method of heat transfer depicted in the image of a hot air balloon.

a)

conduction

b)

convection

c)

radiation

49.

Heat always moves from ________ areas to ________ areas.

a)

cooler to warmer

b)

warmer to cooler

50.

Heat moves from cold object to warm objects.

a)

True

b)

False