Unit 3 Waves Test Review

Front

What is a wave?

Back

A wave is a disturbance that transfers energy from one place to another without transferring matter.

Front

What determines the energy of a wave?

Back

The energy of a wave is determined by its amplitude; larger amplitude means more energy.

Front

What is wavelength?

Back

Wavelength is the distance between two consecutive points of the same phase in a wave, such as crest to crest or trough to trough.

Front

What is the relationship between wavelength and frequency?

Back

Wavelength and frequency are inversely related; as wavelength increases, frequency decreases and vice versa.

Front

What is the visible light spectrum?

Back

The visible light spectrum is the portion of the electromagnetic spectrum that can be seen by the human eye, ranging from red to violet.

Front

What are electromagnetic waves?

Back

Electromagnetic waves are waves that can travel through a vacuum and do not require a medium; they include radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.

Front

What is amplitude?

Back

Amplitude is the maximum displacement of points on a wave from its rest position; it is related to the energy of the wave.

Front

What is the speed of light?

Back

The speed of light in a vacuum is approximately 299,792 kilometers per second (km/s).

Front

What is the difference between digital and analog signals?

Back

Digital signals represent data in discrete values (0s and 1s), while analog signals represent data in continuous waves.

Front

What happens to wavelength as you move from radio waves to gamma rays?

Back

As you move from radio waves to gamma rays, the wavelength decreases (gets smaller).