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- 1. Multiple Choice
- How do molecules at warm temperatures differ from molecules at cool temperatures?
At warm temperatures, molecules move around more.
At warm temperatures, molecules grow in size.
At warm temperatures, molecules exchange electrons more easily.
At warm temperatures, molecules combine with each other more easily.
- 2. Multiple Choice
What is the difference between heat and temperature?
Temperature measures the motion of molecules, and heat is the energy of that motion
Temperature is measured by a thermometer, and heat is measured by a barometer
Heat is measured in calories, and temperature is measured in joules
Heat is caused by the sun, and temperature is caused by conditions in the atmosphhere
- 3. Multiple Choice
What happens to molecules when the temperature reaches absolute zero?
They move so fast that they can't be observed
They begin to vibrate slowly
All of their motion stops completely
They form bonds with other, nearby molecules
- 4. Multiple Choice
Which term best describes conditions immediately following the Big Bang?
Frigid
Lukewarm
Scorching
Moderate
- 5. Multiple Choice
Which takes up the most space?
A cube of steel at absolute zero
A cube of steel at 0 degrees Celsius
A cube of steel at 50 degrees Celsius
A cube of steel at 100 degrees Celsius
- 6. Multiple Choice
What will happen if you heat liquid to a high temperatures?
It will become a colloid
It will become a gas
It will become a solid
It will become a plasma
- 7. Multiple Choice
Which of the following is an example of geothermal energy at work?
- 8. Multiple Choice
What happens when you burn a piece of wood in a campfire?
Chemcial energy is released
Nuclear energy is released
Energy is released due to friction
Solar energy is released
- 9. Multiple Choice
If you turn on a radiator, heat will diffuse throughout the room. What does this mean?
The temperature will become unbearably hot
The heated molecules will cool down
The heat will be concentrated in one area of the room
The heat will spread out
- 10. Multiple Choice
Why is there more heat in an iceberg than a pot of boiling water?
The pot insulates the heated molecules
Most icebergs are fairly warm to the touch
Icebergs contain many more molecules than pots of water
What does not hold heat very well
- 11. Multiple Choice
How much of the matter in the universe is made up of atoms?
1 %
100 %
30 %
99 %
- 12. Multiple Choice
How does the air on a hot day compare with the air on a cold day?
On a hot day, air molecules have more energy
On a cold day, air molecules move faster
On a hot day, the air contains more nitrogen
On a cold day, air molecules don't move at all
- 13. Multiple Choice
From what Tim explains in the movie, what can you infer about the temperature inside a refrigerator?
It's closest to 3 degrees Kelvin
It's closest to 3 degrees Fahrenheit
It's closest to 3 degrees Celsius
It's closest to 3 degrees Rankine
- 14. Multiple Choice
What happens inside a thermometer when the temperature goes up?
The heat caused the liquid to become denser
The heat causes the liquid to expand
The heat causes the liquid to float
The heat boils the liquid into a gas
- 15. Multiple Choice
Which device measures temperature?
- 16. Multiple Choice
What is the temperature of the water in this pot?
212 degrees Fahrenheit
273 kelvin
99 degrees Celsius
120 degrees Fahrenheit
- 17. Multiple Choice
In France, the air temperature is often 30 degrees in summertime. In the northern US, it's often 30 degrees in the winter. What's the most likely reason for this?
Winters in the northern US are extremely warm
France uses the Celsius scale, the US uses the Fahrenheit scale
Summers in France are extremely cold
France uses the Celsius scale, the US uses the Kelvin scale
- 18. Multiple Choice
How is the Kelvin scale different from the Fahrenheit and Celsius scales?
The Kelvin scale is used in the US, the Fahrenheit and Celsius scales are used in Europe
The Kelvin scale measures a wider range of temperatures than the other scales
The Kelvin scale has no negative numbers
The Kelvin scale does not exist outside of science labs
- 19. Multiple Choice
Where might you find a temperature of 2 kelvin?
The North Pole
The equator
Earth's core
The coldest regions of outer space
- 20. Multiple Choice
Why does warm air rise?
Because it's less dense than cold air
Because it's more massive than cold air
Because it has a smaller volume than cold air
Because it has more energy than cold air
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