Frequency is denoted by [b]Hz[/b] - it is the amount of waves passing a point per second.
In the image below the frequency is 1[b]Hz[/b], as 1 full wave is completed per second.
Time period is measured in [b]seconds[/b] - it is how long 1 wave cycle/oscillation takes.
In the image below the wave completes a full oscillation in 1 second, (but has been slowed down for easier viewing).
Wavelength is denoted by [lambda] - it is the distance covered by 1 wave cycle in metres.
Amplitude is measured in [b]metres or m[/b] - it is the max displacement of a wave from the base. (Base is the grey line).
[b]A complete wave[/b] - is a single complete oscillation or wave cycle.
The [b]crest[/b] and [b]trough[/b] of a wave - are the topmost and bottommost points of a wave.
The wavelength is directly proportional to distance covered by said wave in an amount of time.
1.5[lambda] = 15m
[lambda] = 10m
2[lambda] = 10m
[lambda] = 5m
[b]Frequency and Time Period[/b]
[code]F = 1 [divide] T[/code]
F - frequency (Hz)
T - time period of wave (seconds)
1 - 1 second, as they are both relative to 1 second, in some way
[b]1) Calculate the wavelength of a wave if 5 complete waves occupy a length of 20m.[/b]
5[lambda] = 20m
[u][lambda] = 4m[/u]
[b]2) Calculate the period of a wave if 8 complete waves are produced in 72 seconds.[/b]
8 waves = 72 seconds
1 wave = 9 seconds
[u]Time period = 9 seconds[/u]
[b]3) Calculate the period of a wave if 5 complete waves are produced in 60 seconds.[/b]
5 waves = 60 seconds
1 wave = 12 seconds
[u]Time period = 12 seconds[/u]
[b]4)How many complete waves are produced in 60 seconds by a wave with a wave period of 5 seconds?[/b]
[i]x[/i] = 5 second complete waves in 60 seconds
[i]x[/i] = 60 [divide] 5
[u][i]x[/i] = 12 waves[/u]