1. What we will do today:
Carry out calculations involving the relationship between speed, wavelength and frequency for waves.

2. Speed, frequency & wavelength
Are all related by the following equation:
Wave speed = frequency x wavelength
v = f λ
v (m/s)
f (Hz)
λ (m)

3. Water & Sound Wave Examples
v = f λ

4. Example 1
v = ?
f = 1700 Hz
λ = 20 cm

5. Example 2
v = 340 m/s
f = 5 kHz
λ = ?

6. Light, Radio & TV Wave Examples (all travel at v = 3 x 108 m/s)
v = f λ

7. Example 1
v = 3x108 m/s
f = 100 MHz
λ = ?

8. Example 2
v = 3x108 m/s
λ = 6.5 x 10-7 m
f = ?