P12 Waves

Question 1

Transverse waves

Answer 1

are when the movement of the wave is perpendicular to the direction of travel of the wave

Question 2

Longitudinal waves

Answer 2

are when the movement is parallel to the direction of travel of the wave.

Question 3

Mechanical wave

Answer 3

Mechanical waves are waves that require a medium in order to transfer energy away from their source

Question 4

Electromagnetic

Answer 4

are waves that are created as a result of vibrations between an electric field and a magnetic field.

Question 5

Frequency

Answer 5

the rate at which something occurs over a particular period of time or in a given sample

Question 6

Peak

Answer 6

the highest point above the rest position

Question 7

Trough

Answer 7

the lowest point below the rest position.

Question 8

Amplitude

Answer 8

the maximum displacement of a point of a wave from its rest position.

Question 9

Time period

Answer 9

The time taken by a particle of medium to complete its one vibration is called the time period of the wave

Question 10

Wavelength

Answer 10

distance covered by a full cycle of the wave, usually measured from peak to peak, or trough to trough.

Question 11

Speed

Answer 11

The rate of change of position of an object in any direction

Question 12

The wave equation?

Answer 12

V= f x L (wave speed= frequency x wave length)

Question 13

How to work out the period of the wave?

Answer 13

1 / frequency