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Heat Transfer Challenge

Total questions: 100

Worksheet time: 2hrs 40mins

Name
Class
Date
1.

This is a lava lamp. When the light bulb heats the wax, the wax rises. When the wax cools, it falls. This cycle of rising/falling is an example of:

a)

Conduction.

b)

Convection.

c)

Radiation.

d)

Insulation

2.

The candle will slowly heat the metal and transfer the heat directly to the mans hand.

a)

Conduction

b)

Convection

c)

Radiation

d)

Insulation

3.

What waves can transfer heat through the vacuum of empty space?

a)

Electromagnetic waves

b)

Sine waves

c)

Ocean waves

d)
4.

A chair is placed several feet from a fireplace. The fireplace has a glass screen. The side of the chair facing the fireplace gets warm because of

a)

Conduction

b)

Convection

c)

Radiation

d)

Insulation

5.
What is the measurement of the average kinetic energy of a substance?
a)
Kinetic energy
b)
Temperature
c)
Thermal energy
d)
Potential energy
6.
What is a substance that does NOT conduct heat well?
a)
Conductor
b)
Insulator
c)
Convector
d)
Radiator
7.
What is a substance that DOES conduct heat well?
a)
Conductor
b)
Insulator
c)
Convector
d)
Radiator
8.
What is the total amount of kinetic energy in a substance?
a)
Potential energy
b)
Kinetic energy
c)
Thermal energy
d)
Temperature
9.
What is energy?
a)
Kinetic
b)
Movement
c)
Ability to do work, son.
d)
Thermal energy
10.

Boiling Water

a)

Conduction

b)

Convection

c)

Radiation

11.

Curling Iron

a)

Conduction

b)

Convection

c)

Radiation

12.

Weather Patterns

a)

Conduction

b)

Convection

c)

Radiation

13.

Sun Bathing

a)

Conduction

b)

Convection

c)

Radiation

14.

Mantle

a)

Conduction

b)

Convection

c)

Radiation

15.

Microwaving Food

a)

Conduction

b)

Convection

c)

Radiation

16.

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 warmer. The person is getting colder.

d)

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

17.

Heat Lamps

a)

Conduction

b)

Convection

c)

Radiation

18.

Hand Warmer in a Hand

a)

Heat is being transferred from the hand warmer to the hand.

b)

Heat is being transferred from the hand to the hand warmer.

c)

The hand is getting warmer. The hand warmer is getting cooler.

d)

The hand warmer is getting warmer. The hand is getting cooler.

19.
Jill notices that her skin gets burned when she sits out in the sun. What best explains why this happens?
a)
The soil is convecting heat into the air.
b)
The heat from the sun is being conducted to the Earth.
c)
The heat from the sun is radiating down to Earth’s surface.
20.
Which describes what can happen as a result of radiation?
a)
A piece of wood burns in a fire.
b)
A shirt is hot after having been ironed.
c)
A can of soup is heated in a pot on a stove.
d)
A car’s inside temperature rises to over 100 degrees on a sunny day.
21.
Which is the best example of heat transfer by convection?
a)
frying bacon in a pan
b)
sea breeze at the beach
c)
melting ice in your hand
d)
burning your finger on the stove
22.
Which best explains why a hot air balloon floats?
a)
The heated air expands to fill the balloon. The air in the balloon is now lighter than the surrounding air, causing the balloon to rise.
b)
The heated air expands to fill the balloon. The air in the balloon is now heavier than the surrounding air, causing the balloon to rise.
c)
The heated air contracts to fill the balloon. The air in the balloon is now denser than the surrounding air, causing the balloon to rise.
d)
The heated air contracts to fill the balloon. The air in the balloon is now lighter than the surrounding air, causing the balloon to rise.
23.
A student places a cup of cold water on a counter in a hot room.   After a short time, the student notices that the water in the cup is no longer cold.  Which best explains why the water in the cup is no longer cold?
a)
The coldness of the water transferred to the air, making the water in the cup warmer.
b)
The coldness of the water was conducted to the cup, making the water in the cup warmer.
c)
The heat from the air transferred to the water in the cup, making the water in the cup warmer.
d)
The heat from the air caused the cold water in the cup to condense, making the water warmer.
24.
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 
25.
What is the definition of CONDUCTION?
a)
When heat is transferred from objects like rays of light or electromagnetically.
b)
a  hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.
c)
When heat transfers from objects that are touching.
d)
When heat transfers through the heater or AC in your house.
26.
dark colored surfaces _________ radiation
a)
reflect 
b)
absorb
27.

What type of heat transfer takes place when you touch a warm mug of hot chocolate?

a)

Radiation

b)

Convection

c)

Conduction

d)

None of the above

28.

Conduction requires

a)

Electricity

b)

the electromagnetic spectrum and particles

c)

air or water flow

d)

direct contact

29.

Heat transfer always moves ...

a)

cold to hot

b)

east to west

c)

hot to cold

d)

north to south

30.

If you walk barefoot on hot asphalt, energy is transferred by which process?

a)

Convection

b)

Radiation

c)

Conduction

d)

Reflection

31.
The earth receives heat energy from the sun by _______________, which is the transfer of energy as electromagnetic waves?
a)
radiation
b)
convection
c)
conduction
d)
greenhouse effect
32.

When air is heated, its density ___________.

a)

increases

b)

decreases

c)

remains the same

33.

In the process of convection, energy is transferred _________.

a)

because of temperature differences in a solid

b)

because of density differences in a liquid

c)

by the diffusion of molecules throughout a fluid

d)

by the vibration of molecules

34.

Some dye in a beaker of water is gently heated. Why are the streaks of dye seen in the water?

a)

The hot dye is a better conductor than the cool water.

b)

The hot dye is a better convector than the cool water.

c)

The hot water is less dense than the cool water.

d)

The hot water is denser than the cool water.

35.

The flow of heat due to a temperature difference is called...

a)

Heat Transfer

b)

Conduction

c)

Convection

d)

Radiation

36.

When heat energy moves in a solid it is called....

a)

Conduction

b)

Convection

c)

Radiation

37.

Touching a hot stove is an example of...

a)

Conduction

b)

Convection

c)

Radiation

38.

This picture is an example of...

a)

Conduction

b)

Convection

c)

Radiation

39.

When heat energy moves in a liquids or gases it is called...

a)

Conduction

b)

Convection

c)

Radiation

40.

The rising and sinking in fluids is called a

a)

Conduction

b)

Convection Current

c)

Radiation

41.

Boiling water is an example of...

a)

Conduction

b)

Convection

c)

Radiation

42.

A radiator heating a cold room is an example of...

a)

Conduction

b)

Convection

c)

Radiation

43.

This picture is an example of...

a)

Conduction

b)

Convection

c)

Radiation

44.

A type of heat transfer that does not rely on physical contact of substances is called...

a)

Conduction

b)

Convection

c)

Radiation

45.

This picture is an example of...

a)

Conduction

b)

Convection

c)

Radiation

46.

This picture is an example of...

a)

Conduction

b)

Convection

c)

Radiation

47.

The higher the temperature the higher the...

a)

Kinetic Energy

b)

Potential Energy

c)

Sound Energy

d)

Chemical Energy

48.

People sitting around a campfire are able to feel the heat from the fire.

How are the people able to feel the heat form the fire without touching the fire?

a)

A. The heat from the fire travels through the ground & heats the ground around the people.

b)

B. The heat from the fire is conducted through air molecules to the people.

c)

C. The heat from the fire rises in the air and then settles around the people.

d)

D. The heat from the fire radiates from the fire to the people.

49.

You hold a bowl of hot soup that warms your hands; this is

a)

A. Radiation

b)

B. Conduction

c)

C. Convection

d)

D. Conviction

50.

Steam from a hot bowl of soup warms your face as you lean over it; this is

a)

A. Radiation

b)

B. Conduction

c)

C. Convection

d)

D. Conviction

51.

Why is it better to have a cooking pot with a plastic handle instead of a metal handle?

a)

A. Plastic looks better than metal.

b)

B. . Plastic is not a good conductor of heat

c)

C. Plastic washes easier than metal.

d)

D. Plastic is a good conductor of heat

52.

Jim wakes up early in the morning and walks from his carpeted bedroom to the tiled kitchen. Which BEST describes why, despite being the same temperature, the tile floor feels cooler to his feet than the carpet?

a)

A. Tile is a better conductor of heat and transfers heat away from his skin.

b)

B. Carpet is a bad conductor of heat and transfers heat to his skin.

c)

C. Tile is a poor conductor of heat and transfers heat to his skin.

d)

D. The tile and carpet are the same temperature

53.

Serenity wants to keep drinks cold during an afternoon sports game. Which container would MOST LIKELY keep her drinks cold for several hours?

a)

A Plastic, because it will conduct heat.

b)

B. Metal, because it will conduct heat.

c)

C. Plastic, because it will insulate from heat.

d)

D. Metal, because it will insulate from heat.

54.

The butter on top of the pancake melted.

a)

Conduction

b)

Convection

c)

Radiation

55.

Laying under the sun to get tan.

a)

Conduction

b)

Convection

c)

Radiation

56.

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

a)

Conduction

b)

Convection

c)

Radiation

57.

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

a)

Conduction

b)

Convection

c)

Radiation

58.

Which of the following describes Radiation?

a)

The transfer of heat through liquids and gases

b)

The transfer of heat through electromagnetic waves (rays)

c)

The transfer of heat between two objects in direct contact with one another

59.
What is the measurement of the average kinetic energy of a substance?
a)
Kinetic energy
b)
Temperature
c)
Thermal energy
d)
Potential energy
60.
What is a substance that does NOT conduct heat well?
a)
Conductor
b)
Insulator
c)
Convector
d)
Radiator
61.
What is a substance that DOES conduct heat well?
a)
Conductor
b)
Insulator
c)
Convector
d)
Radiator
62.
What is the total amount of kinetic energy in a substance?
a)
Potential energy
b)
Kinetic energy
c)
Thermal energy
d)
Temperature
63.
When the temperature of matter decreases the particles ...
a)
speed up and move farther apart
b)
speed up and move closer together
c)
slow down and move farther apart
d)
slow down and move closer together
64.

What is something that prevents heat, electricity, sound, light...to pass through it?

a)

insulator

b)

conduction

c)

heat transfer

d)

conductor

65.

Which term refers to the transfer of heat by circular movement of a fluid?

a)

conduction

b)

convection

c)

radiation

66.

Heat always moves from _______________.

a)

cooler to warmer

b)

warmer to cooler

c)

right to left

d)

up to down

67.

Sunlight hitting the ocean's surface warms the top layer of water. This is an example of ___________.

a)

conduction

b)

convection

c)

radiation

68.

Solar energy is an example of __________.

a)

conduction

b)

convection

c)

radiation

69.

Contact with Earth's surface causes the atmosphere to be warmer closer to Earth's surface. This is due to ___________.

a)

conduction

b)

convection

c)

radiation

70.

Ocean currents begin at the equator because the sun's rays are warmest at the equator. This is an example of ____________.

a)

conduction

b)

convection

c)

radiation

71.

When warm air rises in the troposphere, it cools and water vapor condenses forming clouds and precipitation. This is an example of ________.

a)

conduction

b)

convection

c)

radiation

72.
Laura bruised her knee.  She applied an ice pack to the bruised area.  When she removed the ice pack from the injured knee, she noticed that the temperature of her skin was lower than the rest of her body.  What is the most likely reason this occurred?
a)
Increased blood flow due tothe ice pack caused the skin to be cooler
b)
The cooling energy of the ice pack was transferred to the skin.
c)
Heat energy from the skin was transferred to the ice pack.
d)
The air surrounding the ice pack cooled the skin.
73.
A student standing near a campfire feels warmer as the fire grows. Which process most likely transfers heat from the campfire to the student?
a)
conduction
b)
convection
c)
radiation
d)
transformation
74.
Isabella filled a glass with warm water. She measured the temperature, and it was 30°C. She left the glass on a table in a room that was 20°C. A few hours later, she measured the water temperature again, and it was 24°C. Which BESTexplains why the water temperature changed?
a)
Energy in the air removed heat from the water.
b)
Heat energy in the water was destroyed by the glass.
c)
Heat energy in the water was transferred to the cooler air.
d)
Energy used by evaporation caused the water temperature to decrease.
75.
Which statement describes the transfer of energy when an ice cube is placed in a cup of hot tea?
a)
Heat flows from the tea to the ice.
b)
Cold flows from the ice to the tea.
c)
Cold flows from the ice, and heat flows from the tea.
d)
Heat flows simultaneously between the ice and the tea.
76.
A pan containing hot water is left on the counter and becomes cool mainly due to
a)
water molecules moving apart.
b)
cold air penetrating the hot water.
c)
heat from the water moving into the cooler air.
d)
hot water reacting with the metal pan.
77.
Hot objects begin to cool as
a)
cooler air is transferred to the object.
b)
energy in the object is transferred to the surrounding air.
c)
atoms in the object react with the oxygen in the air.
d)
energy in the object cancel out energy in the air.
78.
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. 
79.

These are materials that are good conductors, except ...

a)

iron, steel, aluminum

b)

iron, brass, copper

c)

gold, copper, silver

d)

wood, rubber, plastic

80.

Hot air balloon can fly in the sky because it uses helium as a gas to transfer heat to the hot air balloon. The method of heat transfer that is used is ...

(a)  

81.

Hands feel warm due to heat transfer from the flame by ...

(a)  

82.

The example of radiation is ...

a)

clothes are dry due to heat from the sun

b)

teaspoon becomes hot in a cup of hot tea

c)

water boils in electric kettle

d)

hot tea becomes cold after some time

83.

What is the measure of heat?

a)

Energy

b)

Distance

c)

Temperature

d)

Radiation

84.

A metal spoon in ice cream also gets cold due to

a)

Radiation

b)

Convection

c)

Conduction

d)

Magic

85.

How does the sun transfer its energy?

a)

Radiation

b)

Convection

c)

Conduction

d)

Insulation

86.

Which materials heat up more quickly in sunlight?

a)

Light colour materials

b)

Dark colour materials

c)

Shiny materials

d)

No difference

87.

Holding a snowball

a)

Conduction

b)

Convection

c)

Radiation

88.

Putting cheese on a hot hamburger

a)

Conduction

b)

Convection

c)

Radiation

89.

A heat lamp keeping food warm.

a)

Conduction

b)

Convection

c)

Radiation

90.

The air is warmer near the ceiling of a room. The warm air rises because of ____________.

a)

convection

b)

radiation

c)

conduction

91.

The heat from a lamp allows a lizard to remain warm. This is an example of which type of heat transfer?

a)

convection

b)

radiation

c)

conduction

92.

In which direction will the heat flow while a person holds a cup of hot tea. (The cup is hotter than the person's hand.)

a)

from hand to cup

b)

from cup to hand

c)

no heat will be transferred

93.

Convection currents form when

a)

there are no temperature differences.

b)

there are temperature differences.

c)

each surface is exactly the same temperature.

d)

candy is given out for Halloween.

94.
What is the measurement of the average kinetic energy of a substance?
a)
Kinetic energy
b)
Temperature
c)
Thermal energy
d)
Potential energy
95.
What is a substance that does NOT conduct heat well?
a)
Conductor
b)
Insulator
c)
Convector
d)
Radiator
96.
What is a substance that DOES conduct heat well?
a)
Conductor
b)
Insulator
c)
Convector
d)
Radiator
97.
What is the transfer of kinetic energy from one substance to another?
a)
Heat
b)
Energy
c)
Thermal energy
d)
Temperature
98.
Which of the following is the best example of conduction?
a)
A light bulb warming a lampshade
b)
An egg cooking in a frying pan
c)
Water boiling in a pot
d)
Gases circulating in the atmosphere
99.
"Lava lamps" contain colored liquids. These liquids form globs that rise to the top due to
a)
conduction
b)
convection
c)
radiation
100.

The total kinetic energy of the tiny particles that make up matter.

a)

Thermal Energy

b)

Energy Transfer

c)

Temperature

d)

Heat

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