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CP4B Core practical - Investigating waves Flashcards

(5 cards)

1
Q

What is a ripple tank

A

A shallow glass tank oscillating paddle that creates waves

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2
Q

Outline basic steps of the practical

A

1) Set up the ripple tank with a lamp above it and white paper below it

2) Switch on motor attached to wooden rod

3) Measure the wavelength of the waves being cast onto the card using a ruler

4) Count the number of waves passing a point in 10 seconds and calculate frequency

5) Calc wave speed

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3
Q

How should the wooden rod be set up in the ripple tank

A

The wooden rod should be placed into the tank so that it just touches the surface of the water

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4
Q

How should you measure the wavelengths of the waves on the card

A

1) Adjust the lamp position so that the waves are clearly projected

2) Using a metre rule, measure across as many waves as you can

3) Divide the distance by the number of waves measured across

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5
Q

How do you measure the frequency of the waves on the card

A

Count the number of waves passing a chosen point in 10 seconds
Divide the number by 1o to produce frequency

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