Thermal Physics

How is heat energy defined in thermal physics?

• The temperature of a substance

• The total mass of a substance

• The energy of a subtance in terms of its molecule

• The pressure exerted by a gas

What happens to the heat energy of a substance as the speed of its molecules increases?

• It decreases

• It increases

• It remains constant

• It becomes zero

What does temperature measure in a substance?

• The total energy of the substance

• The volume of the substance

• The mass of the substance

• The average kinetic energy of its molecule

What is the average kinetic energy of molecules in a substance?

• The temperature

• The pressure

• The mass

• The volume

How is heat energy defined in thermal physics?

• The temperature of a substance

• The total mass of a substance

• The energy of a subtance in terms of its molecule motion

• The pressure exerted by a gas

What is thermal physics primarily concerned with?

• The study of electricity

• The study of motion

• The study of light

• The study of light

Heat energy can only be transferred through conduction.
True or false?

• True

• False

Thermal energy and temperature are the same.

True or false?

• True

• False

Molecules in a solid vibrate in place and do not move freely.
True or False?

• True

• False

How does heating and cooling affect the kinetic energy of molecules in a substance?