Physical Science Final Review Unit 1

Front

What causes the pencil to look broken?

Back

Refraction is the bending of light as it passes from one medium to another, causing the pencil to appear broken.

Front

Do light and radio waves need a medium to travel?

Back

No, they can travel through space.

Front

What is the highest point on a wave called?

Back

The crest.

Front

What type of electromagnetic waves do we use in the kitchen to cook/warm food?

Back

Microwaves.

Front

What does point C represent in a wave diagram?

Back

Crest.

Front

What is the lowest point on a wave called?

Back

The trough.

Front

Define wavelength in the context of waves.

Back

Wavelength is the distance between two consecutive crests or troughs in a wave.

Front

What is amplitude in a wave?

Back

Amplitude is the maximum distance from the rest position to the crest or trough.

Front

What is the speed of light in a vacuum?

Back

Approximately 299,792 kilometers per second (km/s).

Front

What is the relationship between frequency and wavelength?

Back

Frequency and wavelength are inversely related; as frequency increases, wavelength decreases.