Waves

Question 1

How to work out the frequency

Answer 1

Count how many waves there are in a certain amount of time and divide by the time taken

Question 2

How to work out the wavelength

Answer 2

Count the distance between two crests

Question 3

Wave speed=

Answer 3

Wavelength x frequency

Question 4

Ripple tank

Answer 4

Set up the ripple tank with 5mm of water
Count the amount of waves passing a point in 10 seconds to find frequency
Stop the speed and measure the wavelength
Multiply them to find the wave speed

Question 5

Setting up the vibration generator

Answer 5

Attach it to the power supply and attach string to it
Make sure the string goes over a wooden bridge and has weights attached to the end
Turn it on

Question 6

Method

Answer 6

Choose the frequency and measure the length between two crests (wavelength)
Multiply wavelength by frequency to find the wave speed