Waves and Light

Front

What is the amplitude of a wave?

Back

The amplitude is the maximum height of a wave from its rest position.

Front

What do mechanical waves require to travel?

Back

Mechanical waves require a medium (solid, liquid, or gas) to travel through.

Front

What happens to the wavelength when the frequency of a wave increases?

Back

The wavelength decreases.

Front

What is the equation for wave speed?

Back

Wavespeed (v) = Wavelength x Frequency.

Front

In which material does sound travel the fastest?

Back

Sound travels fastest in solids.

Front

What is a wave?

Back

A wave is a disturbance that transfers energy from one place to another.

Front

What is wavelength?

Back

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

Front

What is frequency?

Back

Frequency is the number of waves that pass a point in one second, measured in Hertz (Hz).

Front

What is the difference between mechanical and electromagnetic waves?

Back

Mechanical waves require a medium to travel, while electromagnetic waves can travel through a vacuum.

Front

What is the relationship between frequency and period?

Back

The period is the reciprocal of frequency; Period (T) = 1/Frequency (f).