10) Wave Properties

Question 1

Define the amplitude of a wave.

Answer 1

Maximum displacement from equilibrium.

Question 2

Other than electromagnetic radiation, give 3 examples of a wave that is transverse.

Answer 2

• water waves.
• rope.
• secondary (s) waves.

Question 3

State one difference between a transverse wave and a longitudinal wave.

Answer 3

transverse wave: oscillation of medium is perpendicular to wave travel.

Question 4

State one application, other than in education, of a polarising filter and give a reason for its use.

Answer 4

Polaroid glasses, to reduce glare.

Question 5

Define the frequency of a progressive wave.

Answer 5

The number of waves passing a point per second.

Question 6

Ultrasound is a longitudinal wave. Describe the nature of a longitudinal wave.

Answer 6

Oscillation of particles is parallel to the direction the wave travels.

Question 7

Explain what is meant by a progressive wave.

Answer 7

A wave transfers energy from one point to another without transferring material.