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CFE Heat Transfer Honor 25

Total questions: 45

Worksheet time: 1hrs 14mins

Name
Class
Date
1.

The sun shines down on this family as the play on the beach. (a)  

Choose from the below words
conduction
convection
radiation
2.

A group of friends gather around a fire to stay warm. (a)  

Choose from the below words
conduction
convection
radiation
3.

The Gulf Stream is a current that brings warm ocean water from the south to the north. (a)  

Choose from the below words
conduction
convection
radiation
4.

Walking on the warm sand sand with your bare feet. (a)  

Choose from the below words
conduction
convection
radiation
5.

Which direction will the heat flow while this person holds a hot cup of tea? (a)  

Choose from the below words
from the cup to her hand
from her hand to the cup
no heat is transferred
6.

Which direction will the heat flow while this ice cap melts? (a)  

Choose from the below words
there is no heat transfer
from the icecap to the water
from the water to the icecap
7.

The metal skewer gets so hot that you drop your marshmallow into the campfire because of (a)  

Choose from the below words
conduction
convection
radiation
8.

A house burns down. The vinyl siding of the house next door warps due to (a)  

Choose from the below words
conduction
convection
radiation
9.

You lay on the same hot rock at night and keep warm from the rock by (a)  

Choose from the below words
conduction
convection
radiation
10.
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.
11.
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.
12.

Which is the best example of heat transfer by convection? (a)  

Choose from the below words
frying bacon in a pan
sea breeze at the beach
melting ice in your hand
burning your finger on the stove
13.

How does heat energy from the sun reach Earth? (a)  

Choose from the below words
conduction
convection
insulation
radiation
14.
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.
15.

On a hot summer day, a student dropped an ice cube onto a park bench. Within minutes, the ice cube melted. Which bestdescribes the process the student observed? (a)  

Choose from the below words
radiation
combustion
conduction
convection
16.
At higher temperatures
a)
particles in an object have less energy
b)
particles in an object move faster
c)
a gas contracts
17.
A gas
a)
has a definite shape but no definite volume
b)
has a definite volume but no definite shape
c)
has fast-moving particles
18.

Freezing (a)  

Choose from the below words
Solid to gas
Liquid to solid
Gas to solid
Liquid to gas
19.

Boiling (a)  

Choose from the below words
liquid to gas
gas to solid
gas to liquid
solid to liquid
20.

What is happening when my ice cream changes from a solid to a liquid? (a)  

Choose from the below words
freezing
melting
burning
evaporation
21.

The speed of the molecules determines the (a)   .

Choose from the below words
volume
density
pressure
temperature
22.

The slower the particles in a substance move, (a)  

Choose from the below words
the colder it is.
the warmer it is.
the more energy it has.
the less energy it has.
23.
Thermal energy is...
a)
heat energy.
b)
the energy of motion
c)
energy of nuclear processes.
d)
an indication of physical change.
24.

Energy transferred from a higher temperature object to a lower temperature object is (a)   .

Choose from the below words
heat
kinetic energy
thermal energy
internal energy
25.

Which thermal exchange process does not require a medium? (a)  

Choose from the below words
Conduction
Convection
Radiation
Evaporation
26.

Which thermal exchange process carries thermal energy through boiling water as it heats up on top of a stove? (a)  

Choose from the below words
Conduction
Convection
Radiation
Evaporation
27.
Heat is the movement of ______.
a)
radiation
b)
thermal energy
c)
cold
d)
fire
28.

The measure of average kinetic energy of all the particles within an object is called (a)  

Choose from the below words
temperature
conduction
radiation
heat 
29.

The measure of average kinetic energy of all the particles within an object is called (a)  

Choose from the below words
temperature
conduction
radiation
heat 
30.

The physical forms of matter which include solids liquids and gases is called? (a)  

Choose from the below words
States of matter
Change in state
State of change
None of these
31.

Match

a)
1.

radiation

b)
2.

radiation AND conduction

c)
3.

convection

32.

Match these heat transfers

a)
1.

Conduction

b)
2.

Convection

c)
3.

Radiation

33.

Select all that apply. Which of the following are examples of radiation?

a)

microwave

b)

Sunlight

c)

Fire

d)

touching a piece of hot metal

34.

Click on the example of CONDUCTION in the picture!

35.

Boiling Water (a)  

Choose from the below words
Conduction
Convection
Radiation
36.

Click on the example of CONVECTION in the picture!

37.

What role does thermal energy play in the process of convection?

a)

It causes fluids to decrease in density and rise.

b)

It increases the conductivity of materials.

c)

It is not involved in the process of convection.

d)

It prevents the movement of heat.

38.

Which material would be the best conductor of thermal energy?

a)

Plastic

b)

Wood

c)

Metal

d)

Glass

39.

Select the correct statements. Select all that apply.

a)

The temperature of Sample A increased.

b)

The temperature of Sample B increased.

c)

The temperature of Sample A decreased.

d)

The temperature of Sample B decreased.

40.

Match the following

a)
1.

solid

b)
2.

liquid

c)
3.

gas

41.

Which state of matter does this image represent?

a)

liquid

b)

solid

c)

gas

d)

plasma

42.
When air in a hot air balloon is heated the air inside the baloon...
a)
expands
b)
contracts
c)
evaporates
d)
condenses
43.
When thermal energy is added to a substance, the substance's particles move:
a)
More rapidly at an increased diestance from each other.
b)
More rapidly with less distance between each other.
c)
More slowly with a greater distance between each other.
d)
More slowly with a reduced distance between each other.
44.
What phase change occurs between points B and C if heat is added?
a)
Freezing
b)
Melting
c)
Boiling
d)
Condensing
45.

A plasma can be made in a laboratory by

a)

cooling a gas to very low temperatures

b)

cooling a gas and reducing the pressure

c)

heating a gas to extremely hot temperatures

d)

heating a liquid to the point it turns into a gas