Required practical - Waves in fluids (AQA GCSE Physics Combined Science): Flashcards
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Practise the cards
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Practise the cards
12 cards from this deck
Purpose of ripple tank practical
Purpose of ripple tank practical
Measure wave speed, frequency, wavelength accurately
Safety risk in ripple tank experiment
Safety risk in ripple tank experiment
Water and electricity together - electric shock risk
Requirement for water depth in tank
Requirement for water depth in tank
Must be uniform throughout to keep speed constant
Method to find wave frequency
Method to find wave frequency
Count waves in 1 minute, divide by 60
Role of stroboscope
Role of stroboscope
'Freezes' wave pattern for clearer observation
Accurate wavelength measurement method
Accurate wavelength measurement method
Measure across several waves, divide by wave count
Wave equation
Wave equation
(speed = frequency × wavelength)
Wavelength change when frequency increases
Wavelength change when frequency increases
Decreases (to maintain constant wave speed)
Typical wave speed in ripple tank
Typical wave speed in ripple tank
Around 4.5-5.0 m/s
Why measure multiple waves
Why measure multiple waves
Reduces percentage errors
Wave speed in uniform depth water
Wave speed in uniform depth water
Remains constant
Ripple tank suitability for wave measurement
Ripple tank suitability for wave measurement
Suitable, especially for small wavelengths & frequencies
