S4S1 + S4S2 Waves (mechanical) & Light

Front

What is a mechanical wave?

Back

A mechanical wave is a wave that requires a medium (solid, liquid, or gas) to travel through.

Front

Which of the following is NOT a mechanical wave?

Back

Light is not a mechanical wave; it is an electromagnetic wave.

Front

What is wavelength?

Back

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

Front

What does frequency measure?

Back

Frequency measures the number of wave cycles completed in one second, measured in Hertz (Hz).

Front

What is the speed of light in a vacuum?

Back

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

Front

What is the low point in a transverse wave called?

Back

The low point in a transverse wave is called a trough.

Front

What is a crest in a wave?

Back

A crest is the highest point of a wave.

Front

What is the difference between transverse and longitudinal waves?

Back

In transverse waves, the particle displacement is perpendicular to the direction of wave propagation, while in longitudinal waves, the particle displacement is parallel to the direction of wave propagation.

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another due to a change in speed.

Front

What is amplitude in a wave?

Back

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