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- 1. Multiple Choice
The transfer of heat in a fluid (gas or liquid) by means of up & down movements through currents...
conduction
convection
radiation
chemicals
- 2. Multiple Choice
What is the concept in which two objects in contact with each other transfer heat until they are equal?
thermal equilibrium
thermal energy
thermal equality
thermal heat
- 3. Multiple Choice
Cooking pizza in the microwave is an example of...
conduction
convection
radiation
- 4. Multiple Choice
Cooking pancakes on a griddle is an example of...
conduction
convection
radiation
- 5. Multiple Choice
Warm air is __________ dense than cold air and rises creating convection currents.
more
less
- 6. Multiple Choice
A group of friends gather around a fire to stay warm.
conduction
convection
radiation
- 7. Multiple Choice
Heat transfers from an area of ____temperature to an area of ___ temperature.
high to low
high to high
low to high
- 8. Multiple Choice
The baby chickens are kept warm from the heat lamps.
conduction
convection
radiation
- 9. Multiple Choice
Steel, iron and aluminum are good examples of what?
atoms
insulators
circuits
conductors
- 10. Multiple Choice
If we add heat to an object, what happens to the movement of the molecules in it?
nothing
they move faster
they move slower
they move the same
- 11. Multiple Choice
Which is the best example of heat transfer by convection?
frying bacon in a pan
sea breeze at the beach
melting ice in your hand
burning your finger on the stove
- 12. Multiple Choice
Which best explains why a hot air balloon floats?
The heated air expands to fill the balloon. The air in the balloon is now less dense than the surrounding air, causing the balloon to rise. This is an example of thermal expansion.
The heated air expands to fill the balloon. The air in the balloon is now more dense than the surrounding air, causing the balloon to rise. This is an example of thermal expansion.
The heated air contracts to fill the balloon. The air in the balloon is now denser than the surrounding air, causing the balloon to rise. This is an example of thermal contraction.
- 13. Multiple Choice
On a hot summer day, a student dropped an ice cube onto a park bench. Within minutes, the ice cube melted. Which best describes the process the student observed?
radiation
conduction
convection
combustion
- 14. Multiple Choice
A cooler made from which materials would be best to use to keep food cold and insulated, keeping the thermal energy out?
aluminum
iron
plastic
- 15. Multiple Choice
The kind of heat transfer that travels through space in electromagnetic waves is ______________________.
Insulation
Radiation
Conduction
Convection
- 16. Multiple Choice
The type of heat transfer that happens through direct contact of molecules or particles with each other is ___________________.
convection
conduction
radiation
insulation
- 17. Multiple Choice
Near the ceiling of a room the air is warmer; the warm air rises because of
conduction
convection
radiation
- 18. Multiple Choice
A high specific heat means...
It requires less energy to change temperature
It requires more energy to change temperature
It heats up very quickly
- 19. Multiple Choice
Copper, Carbon Steel, and Zinc were all heated using the same thermal energy. What material would be the coolest after being heated?
Copper
Carbon Steel
Zinc
- 20. Multiple Choice
An increase in the volume of a substance when the temperature increases is called ___________________________.
Kinetic Energy
Temperature
Thermal Expansion
Heat
- 21. Multiple Choice
Which has the greatest amount of thermal energy even though they have the same temperature?
Image # 1
Image # 2
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