Wave Types

Question 1

Direction of Propagation

Answer 1

Any way in which waves travel

Question 2

Propagation of longitudinal waves

Answer 2

Each particle vibrate left and right (back and fourth)

These vibrations are parallel to the wave direction

Question 3

Propagation of transverse waves

Answer 3

The particles vibrate up and down

These vibrations are at right angles to the wave direction

Question 4

Two types of transverse waves

Answer 4

Water Waves

Electromagnetic Waves

Question 5

Example of longitudinal wave

Answer 5

Sound waves

Question 6

What is compression

Answer 6

They are sections that are pushed together

Question 7

What is a rarefaction

Answer 7

These are sections that are stretched out

Question 8

Why is sound a longitudinal wave

Answer 8

Sound waves in any medium vibrate in a parallel direction that sound wave moves

Question 9

Seismic Waves

Answer 9

Vibrations in the rocks caused by earthquakes or explosions.

There are transverse and longitudinal seismic waves

Question 10

Detectors of transverse waves

Answer 10

Must be aligned at right-angle to direction of propagation

e.g tv and radio antennas

Question 11

How do microphones work

Answer 11

detect pressure variations caused by compression and rarefactions of air in a soundwave