Heat 23-24 PT1

What happens to the particles of a substance when it is heated?

• They move faster.

• They move slower.

• They change shape.

• They change size.

What is required for a liquid to change into a gas?

• Heat must be added.

• Heat must be removed.

• Cold must be added.

• Cold must be removed.

Which state of matter is known for having the least amount of kinetic energy?

• ice

• liquids

• gases

• solids

Which state of matter is known for having the most amount of kinetic energy?

• ice

• liquids

• gases

• water vapor (steam)

What is the difference between temperature and heat?

• Temperature is a measure of the average kinetic energy of the particles in a substance, while heat is the transfer of energy between substances.

• Temperature is a measure of the total potential energy of the particles in a substance, while heat is the transfer of energy between substances.

• Temperature is a measure of the potential energy of the particles in a substance, while heat is the transfer of energy between substances.

• Temperature is a measure of the thermal energy, which has NOTHING to do with kinetic energy, of the particles in a substance, while heat is the transfer of energy between substances.

In which direction will heat always move?

• COLD TO COLD

• HOT TO HOT

• HOT TO COLD

• COLD TO HOT

In which direction will heat always move?

• COLD TO COLD

• HOT TO HOT

• HOT TO COLD

• COLD TO HOT

Which state of matter is represented by the particles in this image?

• Solid

• Liquid

• Gas

Which state of matter is represented by the particles in this image?

• Solid

• Liquid

• Gas

At higher temperatures

• particles in an object have less energy
• particles in an object move faster
• a gas contracts