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PAPER 2
PHYSICS: Waves
RP: measuring waves in a ripple tank
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Keira m
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Cards (14)
What is one way in which energy may be transferred between stores?
Waves
What types of waves transfer energy but not matter?
Both
mechanical
and
electromagnetic
waves
What is a ripple tank used for?
To measure and calculate frequency, wavelength, and speed of waves
It is a transparent shallow tray of water
Light shines through to visualize ripples
How can regular ripples be generated in a ripple tank?
By using a motor
What is the aim of the ripple tank experiment?
To measure the frequency, wavelength, and speed of waves
What are the steps to set up a ripple tank for the experiment?
Set up the ripple tank with about 5 cm depth of water
Adjust the height of the
wooden rod
to touch the water surface
Switch on the lamp and motor for
low frequency waves
How do you measure the wavelength in a ripple tank experiment?
Measure the length of 10 waves and divide by 10
What is a practical method to record wavelength in a ripple tank?
Take a photograph of the waves with a ruler across them and measure from the still picture
How do you calculate the frequency of waves in the ripple tank experiment?
Count the number of waves passing a point in
ten seconds
and divide by ten
What is the formula to calculate wave speed?
Wave speed =
frequency
×
wavelength
What should be included in the results table for the ripple tank experiment?
Length of
12
waves (cm)
Wavelength
(cm)
Number of waves in
10
seconds
Frequency
(Hz)
Wave speed
(cm/s)
What is a hazard associated with electrical components near water in the ripple tank experiment?
Shock
and damage to components
What control measures should be taken to prevent hazards in the ripple tank experiment?
Secure
electrical components
before adding water and avoid splashing
What are the key components of the ripple tank experiment setup?
Ripple tank
(transparent shallow tray)
Water (about 5
cm
depth)
Wooden rod
(to create ripples)
Lamp
(to illuminate the tank)
Motor
(to generate regular ripples)