waves

waves

1. the waves can be used to transfer energy but without transferring matter

2. waves can be used to transfer information

3. longitudinal waves oscillate parallel to the direction of energy travel

4. mechanical waves need a medium (substance to travel through)

5. mechanical waves need a substance ( a medium to travel through>

6. for any wave its amplitude is the maximum displacement of a point on the wave from its undisturbed position

7. plane waves in a ripple tank are reflected from a straight barrier as the incident waves