WorksheetsThermal Energy
Total questions: 57
Worksheet time: 29mins
Name
Class
Date
1.
1. The first law of thermodynamics says
a)
increase in thermal energy = work done + heat added
b)
decrease in thermal energy = work done + heat added
c)
increase in thermal energy = work done
d)
increase in thermal energy = heat added
2.
2. Thermal energy is transferred slowly through a thermal
a)
insulator
b)
conductor
c)
conditioner
d)
thermos
3.
3. This figure shows an example of which type of energy transfer?
a)
conduction
b)
convection
c)
radiation
d)
insulation
4.
4. The amount of heat needed to raise the temperature of 1 kg of the material by 1 degree Celsius is called the _________.
a)
specific heat
b)
thermal insulation capacity
c)
thermal energy
d)
total energy
5.
5. The energy transfer when you touch a block of ice with your hand would be described as
a)
thermal energy leaving the ice and coming towards your hand
b)
thermal energy stays where it is
c)
thermal energy leaving your hand and going towards the ice
d)
thermal energy goes both ways equally
6.
6. A device that absorbs radiant energy from the sun.
a)
air conditioner
b)
refrigerator
c)
solar collector
d)
heat engine
7.
7. ___ is the transfer of energy by electromagnetic waves.
a)
Conduction
b)
Radiation
c)
Contact
d)
Convection
8.
8. ____ is the transfer of thermal energy by collisions between particles in matter.
a)
contact
b)
convection
c)
radiation
d)
conduction
9.
9. __ is thermal energy that is transferred from something at a higher temperature to something at a lower temperature.
a)
Heat
b)
State
c)
Plasma
d)
Charge
10.
10. The sum of the kinetic and potential energy of the particles in an object is the __ of the object.
a)
thermal energy
b)
temperature
c)
heat
d)
mechanical energy
11.
11. The sum of the kinetic and potential energy of the objects in a system is the _____.
a)
mechanical energy
b)
chemical energy
c)
heat
d)
thermal energy
12.
12. How will the thermal energy from the pot in room A move to its handle?
a)
conduction
b)
convection
c)
radiation
d)
insulation
13.
13. Thermal energy transfers to the sunbather in room B by _____________.
a)
conduction
b)
radiation
c)
convection
d)
insulation
14.
14. Where does most of the heat provided by the fire in room C go?
a)
out into the room
b)
up the chimney
c)
into the wood burning
d)
it disappears
15.
15. In room D, the thermal energy of the iron transfers to the clothes by ____.
a)
conduction
b)
convection
c)
radiation
d)
none of the above
16.
16. Which of the materials in the table would experience the largest temperature increase for a given amount of heat input?
a)
Water
b)
Glass
c)
Mercury
d)
Aluminum
17.
17. Which of the following types of thermal energy transfer is primarily responsible for heating the water?
a)
Conduction
b)
Convection
c)
Conduction and radiation
d)
Conduction and convection
18.
19. Which device transfers thermal energy from a cooler region to a warmer region?
a)
solar panel
b)
internal combustion engine
c)
thermal conductor
d)
refrigerator
19.
20. Which would you expect to find in a home with passive solar heating?
a)
wall of large windows
b)
ceiling heating coils
c)
fan
d)
central furnace
20.
21. Which heating systems use fuel to heat a mass of surrounding air that is blown through a series of ducts?
a)
forced air
b)
solar
c)
radiator
d)
electrical
21.
22. Heat engines convert
a)
thermal energy into mechanical energy
b)
kinetic energy into potential energy
c)
mechanical energy into potential energy
d)
mechanical energy into thermal energy
22.
23. If work is greater than heat in the figure, then what must be true about the couch?
a)
Its total energy is decreasing.
b)
Its total energy is constant.
c)
Its total energy is increasing
d)
Its total energy increases, then decreases.
23.
24. Which type of energy transfer does not require matter?
a)
work
b)
conduction
c)
radiation
d)
convection
24.
25. A thermos bottle uses a partial vacuum to prevent thermal energy transfers. How much matter does the vacuum contain?
a)
It is half filled with matter.
b)
It is one quarter filled with matter.
c)
It is completely filled with matter.
d)
It contains almost no matter.
25.
26. A __ is a material that does not allow thermal energy to be transferred through it easily.
a)
fluid
b)
current
c)
thermal conductor
d)
thermal insulator
26.
27. Which would be the best material to use for making tea kettles?
a)
iron, specific heat 450 J/(kg∙°C)
b)
graphite, specific heat 710 J/(kg∙°C)
c)
aluminum, specific heat 900 J/(kg∙°C)
d)
copper, specific heat 380 J/(kg∙°C)
27.
28. Thermal energy is the __ of the particles that make up a system.
a)
average kinetic energy
b)
total energy
c)
temperature
d)
potential energy
28.
29. What happens to an object's temperature if the kinetic energy of that object increases?
a)
It increases
b)
It decreases
c)
It stays the same
d)
Cannot be determined
29.
30. __ is a measure of the average kinetic energy of all the particles that make up an object.
a)
Radiation
b)
Conduction
c)
Thermal Energy
d)
Temperature
30.
1. The transfer of thermal energy by direct collisions of particles.
a)
conduction
b)
temperature
c)
thermal energy
d)
heat
e)
specific heat
31.
2. Thermal energy that flows from a higher temperature to a lower temperature.
a)
heat
b)
temperature
c)
thermal energy
d)
specific heat
e)
conduction
32.
3. A device that absorbs radiant energy from the sun.
a)
solar collector
b)
temperature
c)
thermal energy
d)
heat
e)
specific heat
33.
4. The average kinetic energy of particles that make up an object.
a)
temperature
b)
thermal energy
c)
heat
d)
specific heat
e)
conduction
34.
5. The transfer of thermal energy by movement of warmer and colder materials.
a)
convection
b)
temperature
c)
thermal energy
d)
heat
e)
specific heat
35.
6. The sum of kinetic and potential energies of all the particles in an object.
a)
thermal energy
b)
temperature
c)
heat
d)
specific heat
e)
conduction
36.
7. The amount of heat needed to raise the temperature of 1 kg of the material by 1 degree Celsius.
a)
specific heat
b)
temperature
c)
thermal energy
d)
heat
e)
conduction
37.
8. A device that changes thermal energy into mechanical energy.
a)
heat engine
b)
temperature
c)
thermal energy
d)
heat
e)
specific heat
38.
9. Relationship between heat, work, temperature, and energy.
a)
thermodynamics
b)
temperature
c)
thermal energy
d)
heat
e)
specific heat
39.
10. Thermal energy transfer by electromagnetic waves.
a)
radiation
b)
temperature
c)
thermal energy
d)
heat
e)
specific heat
40.
11. This material is used to reduce the transfer of thermal energy from one place to another.
a)
thermal insulator
b)
temperature
c)
thermal energy
d)
heat
e)
specific heat
41.
13. How does the motion of the particles that make up an object change when the object’s temperature increases?
a)
As the temperature increases the motion of the particles increases.
b)
As the temperature increases the motion of the particles stops.
c)
As the temperature increases the motion of the particles decreases greatly.
d)
As the temperature increases the motion of the particles decreases slightly.
42.
14. Which of these best describes why water is used as a coolant?
a)
Water is a liquid.
b)
Water's molecules are farther apart than other molecules.
c)
Water has a very high specific heat.
d)
None of the above
43.
15. Which type of energy transfer does not require matter?
a)
Conduction
b)
Radiation
c)
Convection
d)
Heat
44.
16. Which of the following types of thermal energy transfer is primarily responsible for heating the water?
a)
Conduction
b)
Convection
c)
Conduction and radiation
d)
Conduction and convection
45.
17. Which heating systems use fuel to heat a mass of surrounding air that is blown through a series of ducts?
a)
forced air
b)
electrical
c)
solar
d)
radiator
46.
18. Which would you expect to find in a home with passive solar heating?
a)
central furnace
b)
fan
c)
ceiling heating coils
d)
wall of large windows
47.
19. Which device transfers thermal energy from a cooler region to a warmer region?
a)
thermal conductor
b)
solar panel
c)
refrigerator
d)
internal combustion engine
48.
20. Solar collectors are parts of _________ solar heating systems.
a)
hot
b)
active
c)
passive
d)
large
49.
22. Which is temperature most directly related to?
a)
kinetic energy
b)
mechanical energy
c)
potential energy
d)
thermal energy
50.
23. Which has the greater amount of thermal energy—one liter of water at 50°C or two liters of water at 50°C?
a)
1 liter of water at 50°C
b)
2 liter of water at 50°C
c)
They have the same amount of thermal energy
51.
24. Which law states that energy will never spontaneously transfer from a cold pot of water to a hot stove?
a)
1st law of thermodynamics
b)
Law of Conservation of Heat
c)
2nd law of thermodynamics
d)
3rd law of thermodynamics
52.
26. In a vacuum, which energy transfer would be the fastest?
a)
convection
b)
conduction
c)
radiation
d)
insulation
53.
27. In a gas, which energy transfer would be the fastest?
a)
convection
b)
conduction
c)
radiation
d)
insulation
54.
28. The 1st law of thermodynamics says
a)
increase in thermal energy = work done + heat added
b)
decrease in thermal energy = work done + heat added
c)
increase in thermal energy = work done
d)
increase in thermal energy = heat added
55.
29. Heating the system is one way to increase the temperature of a system. What is another way?
a)
add hot water to it
b)
do nothing
c)
do work on the system
d)
let the system absorb radiant energy
56.
How does heat flow?
a)
Always from cold to warm
b)
Always from warm to cold
c)
Both warm to cold & cold to warm
d)
It depends on the temperature
57.
What is the equation to measure change in Thermal Energy?
a)
Q=m×(Tf−Ti)×C
b)
Q=m x c
c)
Q = m x C x T
d)
m= Q x C
100 %
