Heat vs Temperature Quiz

What is the temperature of a substance according to a physicist?

• The total energy of all its molecules

• The potential energy of its molecules

• The average kinetic energy of its vibrating molecules

• The speed at which its molecules move

Why does a single particle not have a temperature?

• Because it does not vibrate

• Because temperature is a macroscopic property

• Because it has no kinetic energy

• Because it is too small to measure

What happens to water molecules at room temperature?

• All molecules are stationary

• All molecules vibrate at the same speed

• Some molecules vibrate fast enough to escape

• No molecules can escape

How does the mass of a molecule affect its vibration speed?

• Heavier molecules do not vibrate

• Heavier molecules vibrate faster

• Lighter molecules vibrate faster

• Mass does not affect vibration speed

What is the sum of all the kinetic energies of vibrating molecules called?

• Temperature

• Thermal energy

• Heat

• Potential energy

Why does the ocean have more heat than a cup of coffee?

• Because it is saltier

• Because it is denser

• Because it has more molecules

• Because it is at a higher temperature

How does the ocean contribute to climate change?

• By increasing the air temperature directly

• By absorbing carbon dioxide

• By reflecting sunlight

• By storing and releasing heat into the atmosphere

How does an air conditioner cool a room?

• By reducing the room's temperature to absolute zero

• By adding cold air to the room

• By removing heat from the room and expelling it outside

• By increasing the room's humidity