Required practical - Waves in fluids (AQA GCSE Physics): Flashcards
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12 cards from this deck
Three wave properties measured in ripple tank
Three wave properties measured in ripple tank
Speed, frequency, wavelength
Purpose of stroboscope in ripple tank
Purpose of stroboscope in ripple tank
To 'freeze' waves so they can be seen clearly
How to calculate frequency from waves counted in 1 min
How to calculate frequency from waves counted in 1 min
Divide number of waves by 60 to get Hz
How to measure wavelength accurately
How to measure wavelength accurately
Measure across several crests, divide by number of wavelengths
Wave equation formula
Wave equation formula
(wave speed = frequency × wavelength)
Wave speed in water of constant depth
Wave speed in water of constant depth
Stays constant/same
If frequency increases, wavelength...
If frequency increases, wavelength...
Decreases (inverse relationship)
Why measure across multiple waves?
Why measure across multiple waves?
Reduces measurement errors, gives better average
Main safety concern in ripple tank practical
Main safety concern in ripple tank practical
Water and electricity together is dangerous
What stays same when frequency changes in constant depth?
What stays same when frequency changes in constant depth?
Wave speed
Consistency tip for wavelength measurement
Consistency tip for wavelength measurement
Measure crest to crest or trough to trough
Why must water depth be constant in ripple tank?
Why must water depth be constant in ripple tank?
Wave speed depends on water depth