WAVES Year 11 Intro & Year 12 Wave Particle duality and quantum theory

Question 1

what are waves

Answer 1

A disturbance that propagates through space and time and transfers energy but not matter

Question 2

give me characteristics of wave motion

Answer 2

energy is needed to set up a wave.
particles in the medium execute relatively small vibrations about their mean positions but suffer no permanent displacement.
successive particles perform similar motions but slightly delayed in time (energy transferred as wave progresses).

Question 3

what do mechanical waves require in order to travel

Answer 3

physical medium to travel e.g. sound and water.

Question 4

which types of waves do no require a medium to travel

Answer 4

Electromagnetic waves

Question 5

Disturbances which are single and non-repeating are called

Answer 5

pulses

Question 6

Disturbances which are repeated on a regular basis are termed

Answer 6

periodic waves.

Question 7

Displacement (s)

Answer 7

The position of a particle of the medium relative to its undisturbed position

Question 8

Two types of wave graphs

Answer 8

distance graphs and time graph

Question 9

All waves can be classified into two types of waves:

Answer 9

Transverse Waves are wave motion in which the particles of the medium vibrate perpendicular to the direction of energy transfer.
Longitudinal Waves are wave motion in which the particles vibrate left and right in the direction of energy transfer.