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Waves

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by

Paul Sheffield

on 17 September 2018

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Transcript of Waves

Waves
L.O
Oscillations
Frequency
period
amplitude
wavelength

Do it now
GCSE Question

Q1.Waves may be longitudinal or transverse.

(a) Describe the differences between longitudinal waves and transverse waves.(3)

(b) Radio waves are electromagnetic waves.
Describe how radio waves are different from sound waves.(4)

(Total 7 marks)

Mark scheme
Investigating waves
Time the time for 20 complete cycles
divide by 20 to get the time for one cycle
Use this to calculate the frequency
Period and frequency
Period is the time for one complete wave (s)
Frequency is the number of complete waves per second (Hz)
Conclusion
How did the length of the string affect frequency?
How would this affect wave length?
Why did we time 20 swings not 1 swing?
Full transcript