1.   State an equation that links wave speed, frequency and wavelength.

2.   Calculate the missing values in the table below.

3.   A frequency meter is used in a laboratory to measure frequency. When used to find the highest frequency a student can hear it displays 17 000 Hz. Calculate the wavelength of the sound wave if sound travels at 340 m.s^-1..

4.   A note played on a piano has a wavelength of 0·25 m. Calculate its frequency if sound waves travel at 340 m.s^-1.

5.   Water waves travelling along a canal have a wavelength of 2·0 m and a frequency of 0·5 Hz. Calculate their speed.

6.   A speedboat produces waves with a frequency of 2·0 Hz and a wavelength
of 3·0 m. Calculate the speed of the waves.

7.   Calculate the wavelength of each of the following radio stations broadcast in Aberdeen. Radio waves travel at 3 X 10⁸ m.s^-1.

(a)   FM Radio Scotland  –  93·1 MHz

(b)   FM Northsound One  –  96·9 MHz

(c)   FM Original  –  106·8 MHz

(d)   MW Absolute Radio  –  1215 kHz

(e)   LW BBC Radio 4  –  198 kHz

8.   Red light has a wavelength of 700 nanometres or 700 X 10^-9 m. Calculate the frequency of red light if it travels at a speed of 3 X 10⁸ m.s^-1.