2. Types of
Mechanical Waves

4. Mechanical waves can be
classified according to how the
motion of individual particles of
the medium is related to the
motion of the wave itself.

7. In the case of waves in a string,
the particles oscillate up and
down while the wave moves
horizontally.

8. Transverse Wave

9. The direction of motion of the
particles of the medium (string)
is perpendicular to the direction
of motion of waves. These waves
are called transverse waves.

10. Transverse Wave
Direction of particle motion
Direction of energy transfer

13. In the case of waves in a spring
being pushed or pulled, a series
of compressions (areas where
coils are close together) and
expansions (rarefactions) occur.

15. The particles of a spring move
back and forth horizontally and
are in the same direction as the
line of propagation.

16. Longitudinal Wave

17. Longitudinal Wave

18. These waves are called
longitudinal or compressional
waves.

23. Surface waves have both
transverse and longitudinal
properties.

24. Surface Wave

26. These waves make the particles
in the medium move both
horizontally and vertically as
the wave moves across the
surface.

30. 1. The particles in this wave oscillate up and down while
the wave moves horizontally.
2. The particles in this wave move the same as the
direction of the wave.
3. This wave has the properties of longitudinal and
transverse wave.
4. This re the waves that travels in string.
5. One example of this wave is the sound wave.
6. This wave only occurs in the surface.
7. This wave happens in the springs.

31. 8.

32. 9.

33. 10.