Unit 5 Energy, Waves, and Heat Transfer

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 more.

Front

What are waves?

Back

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

Front

What is the difference between mechanical waves and electromagnetic waves?

Back

Mechanical waves require a medium (like air or water) to travel through, while electromagnetic waves do not require a medium and can travel through a vacuum.

Front

What is sound?

Back

Sound is a type of mechanical wave that is produced by vibrating objects and requires a medium (solid, liquid, or gas) to travel.

Front

What is light?

Back

Light is a form of electromagnetic radiation that is visible to the human eye.

Front

What is the electromagnetic spectrum?

Back

The electromagnetic spectrum is the range of all types of electromagnetic radiation, including radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, and gamma rays.

Front

What is wavelength?

Back

Wavelength is the distance between two consecutive peaks (or troughs) of a wave. It determines the color of light.

Front

What is frequency?

Back

Frequency is the number of waves that pass a point in one second, measured in hertz (Hz). Higher frequency means more energy.

Front

What is heat transfer?

Back

Heat transfer is the movement of thermal energy from one object or substance to another, occurring through conduction, convection, or radiation.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials, where faster-moving particles transfer energy to slower-moving particles.