Thermal Energy Quiz

_________ is the amount of heat necessary to raise one mass unit of that substance by one temperature unit.

• Radiation
• Specific heat
• Fixed heat
• Thermal heat

The slower the particles of matter are moving, the lower their temperature.

• True
• False

Thermal energy always moves from matter with less thermal energy to matter with greater thermal energy.

• True
• False

Thermal energy is always transferred from warmer matter to cooler matter.

• True
• False

Only the particles of warm matter are in constant random motion.

• True
• False

Warm air rises because it is more dense.

• True
• False

When particles are more spread out, they have higher density.

• True
• False

Only very hot objects radiate thermal energy.

• True
• False

A fluid is either a gas or a(n) __________.

• solid
• liquid
• water
• smoke

_____________ occurs when particles of warmer matter collide with particles of cooler matter.

• Convection
• Conduction
• Radiation