Unit 2 Review - SCI8

Front

What is heat?

Back

Heat is thermal energy transferred from one object to another because of a difference in temperature.

Front

Why does a hot iron cool down to room temperature?

Back

A hot iron cools down because heat energy is transferred from the warm iron to the cooler room.

Front

What type of energy is associated with an object’s position?

Back

Potential energy is the type of energy associated with an object's position.

Front

What happens when you touch something cold?

Back

When you touch something that feels cold, heat from your hand moves into the cold substance.

Front

What energy transformation occurs when using a solar panel to power a fan?

Back

The transformation is from light energy to electrical energy to mechanical energy.

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of particles in a substance, related to temperature.

Front

What is the difference between kinetic and potential energy?

Back

Kinetic energy is the energy of motion, while potential energy is stored energy based on position.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases).

Front

What is radiation?

Back

Radiation is the transfer of energy through electromagnetic waves, such as sunlight.