C.2 Wave Model

Question 1

Displacement (x)

Answer 1

Distance the medium has moved from the equilibrium position in a particular direction (m)

Question 2

Frequency (f)

Answer 2

Number of oscillations of the medium or number of complete waves passing a point per second

Question 3

Period (T)

Answer 3

Time for one complete oscillation of the medium

Question 4

Wavelength

Answer 4

Shortest distance between two points that are in phase along a wave (m)

Question 5

Wave speed (v)

Answer 5

Distance travelled per unit time by the energy of the wave (ms-1)

Question 6

Amplitude (A)

Answer 6

Maximum displacement of the medium from the equilibrium position (m)

Question 7

Wave

Answer 7

Transfer of energy through a medium with no resultant displacement of the medium

Question 8

Longitudinal waves

Answer 8

Particles of the medium vibrate parallel to the direction of the energy transfer.

Question 9

Longitudinal wave examples

Answer 9

Sound, earthquake P waves

Question 10

Transverse waves

Answer 10

Particles vibrate at right angles

Question 11

Transverse wave examples

Answer 11

Light, earthquakes waves

Question 12

Displacement position graph

Answer 12

Shows the displacement of a range of particles along medium

Question 13

Displacement time graph

Answer 13

Shows motion of one particle of the medium over a period of time

Question 14

Mechanical wave

Answer 14

Needs a medium to travel through

Question 15

Mechanical wave examples

Answer 15

Sound and earthquake waves

Question 16

Electromagnetic waves

Answer 16

Do not need a medium to travel through, all transverse waves and travel at 3x10^-8 through a vacuum

Question 17

Electromagnetic wave examples

Answer 17

Visible light and radio waves