Waves

Question 1

Waves in nature

Answer 1

Sound (seismic) waves
Visible light waves
Electromagnetic
Water waves
Microwaves

Question 2

All waves transfer …………

Answer 2

Energy

Question 3

Waves are made up of -

Answer 3

Vibrations/ oscillations of particles or electromagnetic fields

Question 4

Longitudinal waves -how do the vibrations occur?

Answer 4

The particle vibrations occur in the same direction as the wave is travelling.

I.e. the oscillations are parallel to the direction of travel.

Question 5

Examples of a longitudinal wave

Answer 5

Sound

Seismic waves from earthquakes

Question 6

Can sound travel in a vacuum? Explain answer.

Answer 6

No because there are no particles to vibrate

Question 7

Transverse waves - describe.

Answer 7

The vibrations / particles move at right angles to the direction the wave is travelling in.

I.e the oscillations are perpendicular to the direction of travel.

Question 8

Name some transverse waves

Answer 8

Light & all other electromagnetic waves such as ( radio waves).

Water waves.

When a Guitar string is played.

Question 9

Radio waves in a vacuum

Answer 9

Can travel through a vacuum (like sound) because they create an electromagnetic field for themselves accommodating their passage

Question 10

Parts of a wave

What is a wavelength of a wave

How is it measured?

Answer 10

The wave length is simply the length of the wave.

Measured from peak to peak, trough to trough

Usually measured in metres (m) and has symbol lambda
pronounced Lam-du