Section 2 - Waves

Question 1

Wave

Answer 1

Transfers energy away from its source

Question 2

Progressive wave

Answer 2

Carries energy from one place to another without transferring any material

Question 3

Amplitude

Answer 3

The maximum magnitude of the displacement

Question 4

Displacement

Answer 4

How far a point on the wave has moved from its undisturbed point

Question 5

Wavelength

Answer 5

The length of one whole wave cycle

Question 6

Period

Answer 6

The item taken for a whole wave cycle

Question 7

Frequency

Answer 7

The number of cycles passing a given point

Question 8

Phase

Answer 8

A measurement of the position of a certain point along the wave cycle

Question 9

Phase difference

Answer 9

The amount one wave lags behind the other

Question 10

Transverse waves

Answer 10

Vibration is at right angles to the direction of travel

Question 11

Longitudinal waves

Answer 11

Vibrations occur along the direction of travel

Question 12

Intensity

Answer 12

How much energy a wave is carrying

Question 13

Polarised wave

Answer 13

Only oscillates in one direction

Question 14

Diffraction

Answer 14

When waves spread out as they come through a narrow gap

Question 15

Reflection

Answer 15

When waves bounce back when it hits a boundary