7th Grade - Thermal Energy

the movement of heat or energy through matter

• conduction
• convection
• radiation

Heat that is moved through waves or particles of energy

• conduction
• convection
• radiation

the transfer of thermal energy through a gas

• conduction
• convection
• radiation

the rule stating that energy cannot be created or destroyed

• law of conservation of energy
• thermal energy

energy that is generated by a source and measured by heat

• chemical energy
• thermal energy
• kinetic energy

a source of thermal energy

• Kinetic energy
• conduction
• law of conservation of energy

Part 1 of 2: Two students disagree on the model below. Here is what they say: Tim: The model shows radiation. Tom: This model shows conduction because the warm air touches the water. Which student is correct?

• Tim
• Tom
• Neither
• both

How is thermal energy transferred when hot air is rising in the atmosphere and cold sinking?

• Conduction
• Convection
• Radiation

Part 2 of 2: Two students disagree on the model below. Here is what they say: Tim: The model shows radiation. Tom: This model shows conduction because the warm air touches the water. Which statement best describes the model above?

• Cool water is rising in the container.
• When water heats up, it rises to the top of the container.
• The heat source is above the container.
• Once water heats up, it sinks to the bottom of the container.

How is thermal energy transferred when you feel the heat of a campfire?

• Conduction
• Convection
• Radiation