WAVES - Light & Sound

Front

What is frequency?

Back

The number of repetitions of a wave in one second.

Front

Do sound waves travel at the same speed through solids, liquids, and gases?

Back

False, they travel faster through a solid.

Front

What is the crest of a wave?

Back

The highest point of a wave.

Front

Do all waves need a medium to travel?

Back

Not all - electromagnetic waves can travel in a vacuum.

Front

What is an opaque object?

Back

An object that allows no light to pass through it.

Front

What is a wave?

Back

A disturbance that transfers energy from one place to another.

Front

What is the wavelength of a wave?

Back

The distance between two consecutive crests or troughs.

Front

What is a medium in the context of waves?

Back

The substance through which a wave travels.

Front

What is the difference between mechanical and electromagnetic waves?

Back

Mechanical waves require a medium to travel, while electromagnetic waves do not.

Front

What is the trough of a wave?

Back

The lowest point of a wave.