Transverse And Longitudinal Waves

Question 1

Transverse waves

Answer 1

In transverse waves the vibrations are perpendicular to the direction of energy transfer. An example of a transverse wave would be light

Question 2

Longitudinal waves

Answer 2

In longitudinal waves,the vibrations are in the same direction as the energy transfer.
An example would be a sound wave

Question 3

Key words

Answer 3

Amplitude
Trough
Wavelength
Crest
Rest position
Distance

Question 4

Amplitude

Answer 4

The amplitude is the maximum displacement

Question 5

Wavelength

Answer 5

Wavelength is the distance between one point on a wave and the same point on the next wave.

Question 6

Frequency

Answer 6

is the number of complete waves passing a certain point each second

Question 7

Frequency

Answer 7

Measured in hertz

Question 8

Period=

Answer 8

1 divided by the frequency

Question 9

Wave speed

Answer 9

Frequency X wavelength

Question 10

Investigating waves practical

Answer 10

1) attach a signal generator to the ripple tank dipper
2) turn on the generator to create waves
3)find the frequency of waves by counting the number of ripples that pass a point in 10 seconds and divide that by 10
4)use a lamp to create shadows of the ripples on a screen below the tank. Place a metre ruler beside the shadows
5) The distance between each shadow is equal to one wavelength
6)measure the wavelength by measuringthe distance across 10 gaps between the shadow lines and divide this by 10
7)use frequency X wavelength to calculate the speed
8)this is suitable as it allows you to measure the wavelength without disturbing the waves

Question 11

Em waves spectrum

Answer 11

Radio —> micro—>infra red—->visible light—->ultra violet—-> X-rays—-> Gamma rays—->