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10 questions
How much of the matter in the universe is made up of atoms?
1 %
100 %
30 %
99 %
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
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
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
Which device measures temperature?
What is the temperature of the water in this pot?
212 degrees Fahrenheit
273 kelvin
99 degrees Celsius
120 degrees Fahrenheit
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
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
Where might you find a temperature of 2 kelvin?
The North Pole
The equator
Earth's core
The coldest regions of outer space
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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