1. Waves
Wave properties

2. Electromagnetic Spectrum
All electromagnetic waves are transverse.

3. The Electromagnetic Spectrum
Light is an electromagnetic wave.

4. The Electromagnetic Spectrum

6. FM radio waves have:
Shorter wavelength
Higher frequency
Higher energy
Than AM radio waves.

7. Light travels in electromagnetic waves

11. Sound travels in longitudinal waves.
Wavelength
The wavelength of a longitudinal (compression) wave is the distance from compression to compression OR rarefaction to rarefaction.
The wavelength of a transverse wave is the distance from crest to crest OR trough to trough.
Sound travels in longitudinal waves.

12. Frequency – the number of wavelengths that pass by a point each second.
One second
The SI unit for frequency is the Hertz (Hz). One Hertz represents one wavelength per second.

13. Relationship between wavelength, frequency, and energy

14. Amplitude

15. The more energy a wave carries, the higher the amplitude.
Amplitude and Energy
The more energy a wave carries, the higher the amplitude.

16. The more energy a wave carries, the higher the amplitude.
Amplitude and Energy
The more energy a wave carries, the higher the amplitude.

17. Speed

20. Comparison of Electromagnetic and Mechanical Waves
Medium not required
Require a medium