required practical Flashcards
1
Q
What is the required practical called
A
Water waves
2
Q
What is it
A
- ripple tank
- contains a layer of water
- ripples are generated by a motor that is suspended above the tank on elastic bands so just touching the surface
- light above the tanks shines down through the water and so we can see the shadow of the ripples
3
Q
When you increase motor speed
A
The ripples become closer together
4
Q
When you decrease motor speed
A
Ripples become further apart
5
Q
How do you calculate
A
V=f x (llamda)
