Required practical - Waves in fluids (AQA GCSE Physics): Quizzes
📚Quizzes
Practise the questions
13 questions from this quiz
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Practise the questions
13 questions from this quiz
What three wave properties are measured using a ripple tank?
What three wave properties are measured using a ripple tank?
Speed, frequency, wavelength
What is the purpose of the stroboscope in the ripple tank?
What is the purpose of the stroboscope in the ripple tank?
To 'freeze' waves so they can be seen
Why is safety critical in this practical?
Why is safety critical in this practical?
Water and electricity together
Why must water depth be consistent everywhere in the ripple tank?
Why must water depth be consistent everywhere in the ripple tank?
Wave speed depends on water depth
How do you convert wave count per minute to frequency in Hz?
How do you convert wave count per minute to frequency in Hz?
Divide the count by 60
You count 120 waves in 1 minute. What is the frequency in Hz?
You count 120 waves in 1 minute. What is the frequency in Hz?
2 Hz
Why measure across several waves rather than just one?
Why measure across several waves rather than just one?
Reduces errors and gives better average
5 crests span 25 cm. What is the wavelength?
5 crests span 25 cm. What is the wavelength?
6.25 cm
What is the wave equation?
What is the wave equation?
Frequency is 2 Hz and wavelength is 0.0625 m. What is wave speed?
Frequency is 2 Hz and wavelength is 0.0625 m. What is wave speed?
0.125 m/s
What happens to wave speed when frequency changes in water of constant depth?
What happens to wave speed when frequency changes in water of constant depth?
Wave speed stays the same
If frequency increases whilst wave speed stays constant, what happens to wavelength?
If frequency increases whilst wave speed stays constant, what happens to wavelength?
Wavelength decreases
For consistent measurements, how should you measure wavelength?
For consistent measurements, how should you measure wavelength?
Always crest to crest or trough to trough