energy & waves

Front

What is energy?

Back

Energy is the ability to do work or cause change. It exists in various forms, such as kinetic, potential, thermal, and electrical.

Front

What are waves?

Back

Waves are disturbances that transfer energy from one place to another without transferring matter.

Front

Why can't sound travel in space?

Back

There's no medium for it to travel through.

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) caused by differences in temperature.

Front

What is radiation?

Back

Radiation is the transfer of energy through electromagnetic waves, such as light or heat, without the need for a medium.

Front

What type of heat transfer occurs when a metal spoon is placed in hot soup?

Back

Conduction occurs when the spoon heats up due to direct contact with the hot soup.

Front

What type of heat transfer is demonstrated by heat lamps warming baby chickens?

Back

Radiation is demonstrated as heat lamps emit infrared radiation that warms the chickens.

Front

What is electrical energy?

Back

Electrical energy is the energy caused by the movement of electrons through a conductor.

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter, which is the total kinetic energy of its particles.