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WorksheetsThermal Energy and Heat Transfer
Total questions: 67
Worksheet time: 1hrs 13mins
Name
Class
Date
1.
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.
2.
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.
3.
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.
4.
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.
5.
What two kinds of heat transfer are represented?
a)
stove→pot=radiation pot→egg=conduction
b)
stove→pot=conduction pot→egg=radiation
c)
stove→pot=convection pot→egg=conduction
d)
stove→pot=conduction pot→egg=convection
6.
Thermal energy transfer by conduction is accomplished when heat moves from a warmer object to a cooler one by -
a)
moving across a solid barrier.
b)
being carried in a fluid, like air or water.
c)
coming in direct physical contact with it.
d)
traveling through empty space.
7.
Which of following is a conductor?
a)
Wooden Stick
b)
Styrofoam Cooler
c)
Metal Pot
d)
Plastic Container
8.
Heat transfer always goes from-
a)
Cold to Hot
b)
Hot to Cold
c)
Heat doesn't transfer
d)
Freezing to Cold
9.
This is an example of-
a)
Conduction
b)
Convection
c)
Radiation
10.
This is an example of-
a)
Conduction
b)
Convection
c)
Radiation
11.
This is an example of-
a)
Conduction
b)
Convection
c)
Radiation
12.
This is an example of-
a)
Conduction
b)
Convection
c)
Radiation
13.
What type of material makes the best insulators?
a)
Aluminum
b)
Copper
c)
Styrofoam
d)
Metal
14.
Which example below is an example of conduction?
a)
Boiling macaroni
b)
The attic is warmer than the basement
c)
The Sun heating the Earth
d)
Touching hot sand with your feet
15.
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
16.
Which example below is an example of radiation?
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
17.
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
18.
Convection could occur in which of the materials below?
a)
A block of wood
b)
The ocean
c)
A bowl of ice cream
d)
In space
19.
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.
20.
This is an example of a(n)
a)
conductor of heat
b)
insulator
21.
Why does a diver wear a wet suit?
a)
To keep in thermal energy.
b)
To keep from getting cuts.
c)
To keep from sinking.
d)
To keep out cold.
22.
what is the definition of thermal insulator
a)
a material which thermal energy doesn't flow through easily
b)
the movment of thermal energy
c)
a material which thermal energy flows through easily
d)
fire is fun kids
23.
What is an example of a conductor?
a)
Rubber
b)
Plastic
c)
Sawdust
d)
H2O
24.
What is a conductor?
a)
A substance that resists transferr of energy.
b)
A substance that easily transfers energy.
c)
A substance that transfers energy
d)
A substance that doesn't transfer energy
25.
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.
26.
Andy stirred a hot drink in a styrofoam cup with a metal spoon. In what order did the thermal energy reach Andy's hand?
a)
cup-hot chocolate-hand
b)
hand-spoon-hot chocolate
c)
hot chocolate-spoon-hand
d)
hot chocolate-spoon-hand-cup
27.
In the winter, some people heat their homes by burning logs in the fireplace. How does the heat from the fire get to the other side of the room?
a)
it travels through the carpet by conduction
b)
it travels through the air by convection
c)
it travels through the carpet by radiation
d)
it travels with the smoke by condensation
28.
what is the meaning of convection?
a)
cold rises heat falls
b)
heat
c)
cold
d)
hot rises cold falls
29.
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.
30.
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)
Insolation
31.
You're holding hands with your best friend. Your friend's hands are REALLY warm and yours are really cold. After a few minutes, this has changed. How might you explain what happened?
a)
The cold energy from your hand transferred to your friend's hand through conduction.
b)
The heat energy from your friend's hand transferred to your hand through conduction.
c)
The cold energy from your hand transferred to your friend's hand through convection.
d)
The heat energy from your friend's hand transferred to your hand through convection.
32.
Which best explains how bacon is fried on a stove burner?
a)
The bacon creates a convection current, the heat rises to the pan, and then rises to the stove burner.
b)
The bacon transfers heat directly to the pan, and the pan transfers heat directly to the stove burner.
c)
The stove burner radiates heat to the pan, and the pan radiates heat to the bacon.
d)
The stove burner transfers heat directly to the pan, and the pan directly transfers heat to the bacon.
33.
What materials would be good insulators for a handle on a pan or pot that would be used on the stove?
a)
wood or plastic
b)
metal or rubber
c)
wood or rubber
d)
copper or steel
34.
Why does a metal lawn chair get hot in the sun when the grass sitting in the same sunlight remains cool to the touch?
a)
Heat travels easily through plants but not metals.
b)
Heat travels easily through both plants and metals.
c)
Heat travels easily through metal objects but not through plants.
35.
Movement of thermal energy from a warmer object to a cooler object
a)
Specific Heat
b)
Heat
c)
Freezing Point
d)
Boiling Point
36.
Thermal energy and temperature are the same.
a)
True
b)
False
37.
Mittens help keep your hands warm in winter because:
a)
They are conductors of heat.
b)
They are fuzzy.
c)
They are conductors of electrical energy.
d)
They are insulators.
38.
An ice cube in the room will...
a)
absorb the heat from the room
b)
release cold into the room
c)
rise the temperature of the room
d)
All the above
39.
The heat from a hot burner to a pot is transferred by ______.
a)
convection
b)
insulation
c)
radiation
d)
conduction
40.
After taking a hot shower, James steps out of the shower onto the tile floor. The tile felt cold to his feet. Which explanation below best describes James' experience?
a)
Heat from his feet is transferred to the tile floor
b)
Heat from the tile floor is transferred to his feet
c)
Cold from the tile floor is transferred to his feet
d)
Cold from his feet is transferred to the tile floor
41.
If 2 containers have the same volume of liquid, why does the one with the higher temperature have more thermal energy?
a)
Its particles have more kinetic energy
b)
It has more particles
c)
It doesn't have any thermal energy
d)
The thermal energy is the same in both
42.
_________________________ is a measure of the average kinetic energy of the particles in a material.
a)
thermal
b)
friction
c)
temperature
d)
expansion
43.
The movement of thermal energy from an object at a higher temperature to an object at a lower temperature is called ____________.
a)
thermal
b)
expansion
c)
temperature
d)
heat
44.
The transfer of energy by electromagnetic waves is called
a)
conduction
b)
convection
c)
radiation
d)
insulation
45.
Which direction is heat flowing in the picture?
a)
from the hand to the ice
b)
from the ice to the hand
c)
heat is not being transferred
d)
there is no way to tell
46.
the transfer of heat through a fluid
a)
heat
b)
convection
c)
thermal energy
47.
The energy an object has due to the motion of its particles; the total amount of kinetic energy of particles in an object.
a)
heat
b)
thermal energy
c)
conduction
d)
convection
48.
Why does a blanket provide warmth to a person?
a)
it is a conductor of heat
b)
it is unable to remain cool
c)
it is warmer than the air
d)
it is an isulator
49.
Which is an example of convection?
a)
light bulb burning
b)
cooking hot dog over fire
c)
hot air balloon floating up
d)
sun's rays
50.
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.
51.
What is the difference between a conductor and an insulator?
a)
An insulator allows electricity to flow through it easily and a conductor does not
b)
A conductor allows electricity to flow through it easily and an insulator does not.
c)
An insulator is magnetic and a conductor is not
d)
A conductor is magnetic and an insulator is not
52.
The way the heat is moving from the hot coffee is called...
a)
convection
b)
radiation
c)
insulation
d)
conduction
53.
Walking on the warm sand sand with your bare feet demonstrates this type of heat transfer.
a)
conduction
b)
convection
c)
radiation
54.
Near the ceiling of a room the air is warmer. The warm air rises because of
a)
conduction
b)
convection
c)
radiation
55.
True or False: The faster the particles are moving, the more thermal energy an object has.
a)
True
b)
False
56.
The thermal energy exchange between objects of different temperatures
a)
conduction
b)
heat transfer
c)
convection
d)
radiation
57.
LT3: If two objects have different temperatures, heat will flow from the warmer object to the cooler one UNTIL ____________
a)
one reaches a temperature of zero
b)
they both have an equal temperature
c)
one runs out of energy
58.
Two balls of clay have the same temperature but different masses. Which ball has more thermal energy?
a)
The ball of clay with more mass
b)
The ball of clay with less mass
59.
Nash puts his cold Coke Slurpee on to the metal roof of his mom's car. Describe the heat transfer that takes place.
a)
Heat is transferred from the car's roof into the Slurpee and increases the temperature of the Slurpee.
b)
Heat is transferred from the Slurpee into the roof and increases the temperature of the roof.
c)
The Slurpee stays the same temperature until it is completely gone.
d)
The roof doesn't change temperature due to the fact that it sits in the sun all day.
60.
What type of heat transfer is happening at "A"
a)
conduction
b)
convection
c)
radiation
61.
What type of heat transfer is happening at "B"?
a)
conduction
b)
convection
c)
radiation
62.
What type of heat transfer is happening at "C"?
a)
conduction
b)
convection
c)
radiation
63.
Kamea leaves chocolate pudding out on the counter which is at "room temperature". What will happen if the pudding is not put back into the refrigerator after several hours?
a)
The pudding will increase in temperature, but the counter temperature will remain the same.
b)
The pudding and the counter will become lower temperatures.
c)
The pudding and the counter will become higher temperatures.
d)
The pudding and the counter will become the same temperature.
64.
The sun warming your skin is an example of heat transfer through
a)
conduction
b)
convection
c)
radiation
d)
thermal electricity
65.
Why is there more thermal energy in an iceberg than in a pot of boiling water?
a)
a. The pot insulates the heated molecules
b)
b. Most icebergs are fairly warm to the touch
c)
c. Icebergs contain many more molecules than pots of water
d)
d. Water does not hold heat very well
66.
If Lake Superior and a glass of water both have a temperature of 52 degrees, which has the most thermal energy?
a)
Glass of water
b)
Lake Superior
c)
They have the same amount of thermal energy
d)
There is no way to tell which one has more thermal energy
67.
Ella has two objects of different temperatures. One is a hot water bottle, and the other is a blanket. What happens when the two objects are placed on top of each other?
a)
The warmer object will remain the same.
b)
The cooler object will get cooler.
c)
The warmer object will get hotter.
d)
The cooler object will become warmer.
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