8th Grade Science Waves Semester Test

Front

What is amplitude in the context of waves?

Back

Amplitude is the maximum displacement of points on a wave from its rest position, indicating the wave's energy.

Front

How does amplitude affect the energy of a wave?

Back

Greater amplitude carries more energy.

Front

What determines the speed of a wave?

Back

The speed of a wave is determined by the properties of the medium through which it travels.

Front

What happens when a wave encounters a boundary and bounces back?

Back

This phenomenon is known as reflection.

Front

What is the law of reflection?

Back

The angle of incidence is equal to the angle of reflection.

Front

What occurs when a wave bends around an obstacle?

Back

This phenomenon is called diffraction.

Front

What is refraction in wave behavior?

Back

Refraction is the bending of waves as they pass from one medium to another due to a change in speed.

Front

What is the relationship between wavelength and frequency?

Back

Wavelength and frequency are inversely related; as one increases, the other decreases.

Front

What is a wave?

Back

A wave is a disturbance that transfers energy through space or matter.

Front

What are the two main types of waves?

Back

The two main types of waves are mechanical waves (require a medium) and electromagnetic waves (do not require a medium).