1. Wave Motion

2. Review Lab
What affects frequency?

3. The transfer of energy through a medium
What is a Wave?
The transfer of energy through a medium
Source of energy is needed to creates vibration that can be passed through a medium

4. Earth: A Biography
Let’s take a look!

5. Terminology
Pulse – a single disturbance
Periodic wave – wave where the motion is repeated at a regular time interval

6. Transverse Wave
The motion of the particles in the medium is at right angles to the direction in which the wave travels

7. Crest – high section of the wave Trough – low section of the wave
Terminology
Crest – high section of the wave
Trough – low section of the wave
Wavelength ()- distance between successive wave particles that are in-phase (at the same place moving in the same direction)
TWave01/TW01.html

8. Drawing Transverse Waves
Draw a periodic transverse wave consisting of two wavelengths with an amplitude of 2 cm and λ = 3.0 cm

9. Longitudinal Wave
particles vibrate parallel to the direction of the motion of the wave

10. Compressions: areas where particles come closer together
Terminology
Compressions: areas where particles come closer together
Rarefactions: regions where particles are further apart
LWave01/LW01.html

11. Homework! Draw the following waves:
Draw 3 waves with A = 1.0 cm and λ = 2,0 cm
Draw 2 wavelengths A = 1.5 cm and λ = 4.0 cm
Draw 4 wavelengths A = 1.0 cm and λ = 1.0 cm