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- 1. Multiple Choice
The total or sum of the kinetic and potential energy of all the particles in a substance due to their random motion is called
temperature
thermal energy
degrees
mass
- 2. Multiple Choice
Heat transfer occurs
in many directions
both from warm objects to colder ones and from cold objects to warmer ones
only from warmer objects to colder ones
only from cold objects to warmer ones
- 3. Multiple Choice
A measure of the average kinetic energy of the individual particles in an object is called
thermal energy
conduction
convection
temperature
- 4. Multiple Choice
Which of these is an example of convection?
Standing on a hot metal bridge
The air near the ceiling is warmer than the air near the floor
The Sun heating the Earth
Touching hot sand with your feet
- 5. Multiple Choice
The transfer of thermal energy through electromagnetic waves is called ______
conduction
convection
radiation
- 6. Multiple Choice
The transfer of thermal energy through a substance by direct contact or touch is called___.
conduction
insulation
convection
radiation
- 7. Multiple ChoiceThermal energy ALWAYS moves from _____ to _____.solid to liquidice to waterhot to coldsolid to gas
- 8. Multiple Choice
Unlike conduction or convection, radiation is a method of thermal energy transfer that can move in electromagnetic waves -
through empty space.
when objects touch.
only through solids.
in the motion of fluids.
- 9. Multiple ChoiceWhich of the following is an example of conduction?Solar energy warming a room.Heat rising from the coils of a stove.Hot air drying a wet towel.Heat moving from a clothes iron to a shirt.
- 10. Multiple Choice
Which of these is an example of radiation?
Standing on a hot metal bridge
The air near the ceiling is warmer than the air on the floor
The Sun heating the Earth
Touching hot sand with your feet
- 11. Multiple Choice
What is the most important source of radiation on Earth?
campfires
boiling water
the Sun
the Ocean
- 12. Multiple Choice
When measuring the amount of thermal energy in a substance ____?
quantity DOES NOT matter.
quantity DOES matter.
only temperature matters.
motion of particles do not matter at all.
- 13. Multiple Choice
If a whole pie and a small piece of pie are the same temperature, which has less thermal energy?
whole pie
small piece of pie
they have the same amount of thermal energy
- 14. Multiple Choice
Why do gases or liquids rise when they are heated?
particles move faster, expand, and become more dense
particles move faster, expand, and become less dense
particles move slower, come closer together, and become less dense
particles move slower, come closer together, and become more dense.
- 15. Multiple Choice
Why do gases or liquids sink when they cool down?
particles move faster, expand, and become more dense
particles move faster, expand, and become less dense
particles move slower, come closer together, and become less dense
particles move slower, come closer together, and become more dense.
- 16. Multiple Choice
Warming your body when standing near a campfire is an example of what type of heat transfer?
conducton
convection
radiation
- 17. Multiple Choice
Which of these is a good conductor of heat?
plastic
wood
empty space
metal
- 18. Multiple Choice
Substances such as wood and plastic are not good conductors of heat. They are called ________.
metal
conductors
insulators
radiators
- 19. Multiple Choice
A man burning his hand when grabbing a metal pot without a glove is an example of what type of heat transfer?
radiation
conduction
convection
temperature
- 20. Multiple Choice
What type of heat transfer is described as the transfer of heat through fluids such as gases and liquids (when warm fluids rise and cool fluids sink)?
convection
conduction
radiation
temperature
- 21. Multiple Choice
Which is true?
A swimming pool of warm water has more thermal energy than a cup of hot water.
A swimming pool of warm water has less thermal energy than a cup of hot water.
A swimming pool of warm water and a cup of hot water have the same amount of thermal energy.
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