Practice Question

1.State the definition for wavelength

Wavelength is the distance from one point on a wave, to the same point on the next wave.

2.State the definition for amplitude

Amplitude is the maximum displacement of a point on a wave away from its undisturbed position.

3. State the defintion for frequency

Frequency,f of a wave is the number of waves passing a point each second.

4.State the definition for time period

The time period, or period, T is the time taken for each wave to pass a fixed point.

5. Write the equation which links Time period and frequency

6. Write the equation which links wave speed, frequency and wavelength

7. A wave has a wave speed of 10m/s and a wavelength of 0.1km. Calculate the frequency

Frequency = wave speed/wavelength

0.1km = 100m

Frequency = 10m/s x 100m = 1000Hz

8. Calculate the time period of a wave which  has a frequency of 1000kHz.

1000kHz = 1000000Hz

Time period = 1/freqency

Time period = 1/1000000 = 1 x 10^-6 seconds