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- 1. Multiple Choice
The total kinetic energy of the molecules of a substance
temperature
thermal energy
conduction
radiation
- 2. Multiple Choice
The average kinetic energy of a substance
temperature
thermal energy
conduction
radiation
- 3. Multiple Choice
Does the tip of a lit match or a freezer full of ice cream bars have more thermal energy?
match
freezer of ice cream
They have the same amount of thermal energy.
- 4. Multiple Choice
Heat always transfers from...
cold to hot
hot to cold
lower kinetic energy to higher kinetic energy
- 5. Multiple Choice
Which of the following are methods of heat transfer? (Select all that apply)
Insulation
Conduction
Convection
Kinection
Radiation
- 6. Multiple Choice
What type of materials allow for quick heat transfer?
Insulators
Radiators
Conductors
Gases
- 7. Multiple Choice
What type of material slows the transfer of heat?
Insulators
Radiators
Conductors
Metals
- 8. Multiple Choice
Why does an ice cube feel cold?
Cold is transferred to warmer objects.
The ice gives energy to your hand.
Because penguins are cold.
You are losing energy to the ice cube in your hand.
- 9. Multiple Choice
If 3 spoons are placed into a bowl of hot water, which one can we expect to heat the fastest?
Metal - a good conductor
Plastic - a medium conductor
Wood - a poor conductor
- 10. Multiple Choice
The granite counter feels cold when I touch it due to...
Conduction
Convection
Radiation
- 11. Multiple Choice
The fire makes my face warm from afar due to...
Conduction
Convection
Radiation
- 12. Multiple Choice
Hot air rises and makes the 2nd floor hot due to...
Conduction
Convection
Radiation
- 13. Multiple Choice
My mouth is burnt on the pizza due to...
Conduction
Convection
Radiation
- 14. Multiple Choice
My face is burnt when I open the hot oven due to...
Conduction
Convection
Radiation
- 15. Multiple Choice
My grapefruit heats up under the lamp due to...
Conduction
Convection
Radiation
- 16. Multiple Choice
The entire room heats up from a space heater due to...
Conduction
Convection
Radiation
- 17. Multiple Choice
Why do warm fluids rise?
Molecules slow down
Warm = More dense
Warm = Less dense
- 18. Multiple Choice
As heat is added to a substance, what is true about the kinetic energy of those molecules?
Molecules spread out and move slower
Molecules spread out and move faster
Molecules compress and move slower
Molecules compress and move faster
- 19. Multiple Choice
The transfer of energy by electromagnetic waves is
conduction
convection
radiation
- 20. Multiple Choice
The transfer of energy by molecules bumping into other molecules and speeding them up is
conduction
convection
radiation
- 21. Multiple Choice
The transfer of energy due to a current in a fluid is
conduction
convection
radiation
- 22. Multiple Choice
When will heat transfer stop between 2 substances?
when the 2 substances are insulators
when the 2 substances are conductors
when the 2 substances are below 0 degrees Celcius
when the 2 substance are in equilibrium (same temp)
- 23. Multiple Choice
When a hot can of water is placed in a container of cold water, what happens?
The hot water transfers heat to the container and then to the water via conduction and then convection takes place in the water.
The cold water transfers heat to the hot water.
The hot water heats the cold via radiation.
- 24. Multiple Choice
As an ice cube warms and then melts, what is happening to its molecular kinetic energy?
increasing
decreasing
staying the same
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