Exercises - Form IV - WAVES - ACTIVITY 1

ACTIVITY 1

1.       With examples distinguish

                              i.            Electromagnetic and mechanical waves

                            ii.            Transverse and longitudinal waves

2.       Describe how can water waves be longitudinal waves?

3.       With the aid of illustration describe the terms period, amplitude, wavelength, crest, trough and frequency as used in propagation of waves.

4.       With the aid of illustrations described the propagation of waves.

5.       Find the wavelength of a note if the speed of sound in air is 330 m/s and its frequency is 440 Hz_.

6.       An FM radio station broad casts electromagnetic waves at a frequency of 125 MHz The radio waves have a wavelength of 2.4 m. Calculate the speed of the radio waves.