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Thermal Energy Transfer

Total questions: 56

Worksheet time: 54mins

Name
Class
Date
1.
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
2.
The baby chickens are kept warm from the heat lamps.  This demonstrates what kind of heat transfer? 
a)
conduction
b)
convection
c)
radiation
3.
Energy that travels as electromagnetic waves is called ______
a)
conduction
b)
convection
c)
radiation
4.
Radiation is how energy from the sun is transferred to Earth.
a)
true
b)
false
5.
The transfer of thermal energy through a substance by direct contact is called___.
a)
conduction
b)
insulation
c)
convection
d)
radiation
6.
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
7.
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
8.
The total kinetic energy of particles that make up matter is called
a)
Heat
b)
Calorie
c)
Temperature
d)
Thermal Energy
9.
The Gulf Stream is a current that brings warm ocean water from the equator to the north. What type of heat transfer is this?
a)
conduction
b)
convection
c)
radiation
d)
Insolation 
10.
______ 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
11.
What happens to particles as they heat up?
a)
They slow down
b)
Nothing
c)
They don't move
d)
They speed up
12.
Thermal energy ALWAYS moves from _____ to _____.
a)
solid to liquid
b)
ice to water
c)
hot to cold
d)
solid to gas
13.
The Law of Conservation of Energy states:
a)
Energy can be created and destroyed but not transformed 
b)
Energy cannot be created or destroyed, it can only transformed
c)
Energy can't be created, destroyed or transformed
14.

What is the original source of the most of the energy that people use?

a)

By radiation from the sun.

b)

By convection from the sun.

c)

By radiation from the Earth's core.

d)

Conduction from Earth's core.

15.

Which best explains how this roasting marshmallows happens?

a)

Heat from the fire is conducted into the marshmallow.

b)

Heat from the fire is radiated into the marshmallow.

c)

The coolness of the marshmallow is conducted into the fire.

d)

The coolness of the marshmallow is radiated into the fire.

16.

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.

17.

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.

18.

What enables fireman to enter buildings that are on fire and return from them safely?

a)

Convection cells keep fire away.

b)

The heat makes the building expand so there is no more room.

c)

Fireman wear heat resistant suits.

d)

They are really fast.

19.

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.

20.

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

a)

Conduction

b)

Convection

c)

Radiation

d)

All of them

21.

Which of the following is an example of convection?

a)

Hair dryer is drying up your hair

b)

When a car engine turns hot after being turned on.

c)

A spoon placed in the cup filled with cold coffee.

d)

Boiling spaghetti noodles in water.

22.

What heat transfer happens when you put the pan in the open stove?

a)

Conduction

b)

Convection

c)

Radiation

d)

None

23.

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

a)

Conduction

b)

Convection

c)

Radiation

24.

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

25.

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

a)

conduction

b)

convection

c)

radiation

26.

Ironing a shirt is an example of:

a)

condensation

b)

evaporation

c)

conduction

d)

convection

27.

The ______ air rises and the cold air sinks in convection heat transfer.

a)

warm

b)

cold

c)

same

d)

very cold

28.

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

a)

radiation

b)

conduction

c)

convection

29.

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

a)

conduction

b)

convection

c)

radiation

30.

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

a)

conduction

b)

radiation

c)

convection

d)

spaceship

31.

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

a)

conduction.

b)

convection.

c)

radiation.

32.

The total energy of all the particles in a substance is called

a)

temperature

b)

thermal energy

c)

degrees

d)

mass

33.

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

a)

heat

b)

temperatur

c)

motion

d)

momentum

34.

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

35.

A measure of the average kinetic energy of the individual particles in an object is called

a)

thermal energy

b)

conduction

c)

convection

d)

temperature

36.
What happens to particles as they heat up?
a)
They slow down
b)
Nothing
c)
They don't move
d)
They speed up
37.
What happens to particles as they cool down?
a)
They slow down
b)
Nothing
c)
They don't move
d)
They speed up
38.
Which sentence explains why a cold metal spoon placed in a pot of boiling water becomes hot?
a)
Thermal energy is transferred from the spoon to the water.
b)
Thermal energy is transferred from the water to the spoon.
c)
Thermal energy in the water is transformed into kinetic energy in the spoon.
d)
Thermal energy in the spoon is transformed into kinetic energy in the water.
39.

Which type of heat transfer is shown?

a)

convection

b)

conduction

c)

radiation

d)

stir frying

40.

Which type of heat transfer is shown?

a)

convection

b)

conduction

c)

radiation

d)

ironing

41.

What type of heat transfer is shown?

a)

convection

b)

conduction

c)

radiation

d)

bonfire

42.

Which type of heat transfer is shown?

a)

convection

b)

conduction

c)

radiation

d)

hot air balloon

43.

What type of heat transfer is shown here?

a)

convection

b)

conduction

c)

radiation

d)

boiling water

44.

If a door was left open between the bedroom (74 degrees) and the living room (68 degrees), what would likely happen to the temperatures after several hours?

a)

nothing, they would not change

b)

both rooms would become hotter 

c)

both room would become colder

d)

the bedroom temp. would lower and the living room temp. would rise

45.

After holding an ice pack against his skin for 20 minutes, the man notices the ice pack is melting. Why is this happening?

a)

radiation - the ice pack is now all melted

b)

conduction - body heat transferred to the cold ice pack

c)

convection - the water in the ice pack flowed in a circle pattern

d)

conduction - heat came from the bigger object to the smaller

46.

If you were going to use this pan to cook, what do you notice could be a problem?

a)

it is made of metal, a good conductor

b)

the handles are all metal and will be HOT

c)

the sides are all metal and will be HOT

d)

there is no food in the pan to cook

47.
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.
48.
In the situation illustrated, how will heat energy move? Heat energy will be transferred from –
a)
the water to the hot plate by convection.
b)
the water to the hot plate by conduction.
c)
the hot plate to the water by convection.
d)
the hot plate to the water by conduction.
49.
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.
50.
An example of a situation in which an egg is receiving thermal energy through convection -
a)
The egg is kept warm by its mother in the nest.
b)
An egg cracked on a hot sidewalk starts to cook.
c)
The egg is hard boiled in a pot of water.
d)
A metal pan on the stove fries the egg.
51.
Heat transfer in boiling water.
a)
Conduction
b)
Convection
c)
Radiation
52.
Heat transfer in wind.
a)
conduction
b)
convection
c)
radiation
53.
When you use a microwave, what is the main way that heat is transferred?
a)
Convection
b)
Conduction
c)
Radiation
54.
The Gulf Stream is a current that brings warm ocean water from the south to the north. What type of heat transfer is this?
a)
conduction
b)
convection
c)
radiation
d)
insulation 
55.
Jenny poured some hot chocolate into a cup and stirred it with a metal spoon.  She noticed the spoon was really warm.  What is the best explanation for this?
a)
The spoon is a conductor.
b)
The spoon reflects heat.
c)
The spoon is an insulator.
d)
She touched the spoon first and waited to touch the cup.
56.
Radiation is heat transfer by-
a)
Touch
b)
Circles
c)
Waves

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