EM waves(2)
טקסט Storyboard
- Electromagnetic Waves
- It does not need a medium to propagate or travel from one place to another. Mechanical waves (like sound waves or water waves), on the other hand, need a medium to travel.
- Are there different types of Electromagnetic waves?
- Electromagnetic Waves
- EM waves are 'transverse' waves. This means that they are measured by their amplitude and wavelength.
- Electromagnetic Waves
- The highest point of a wave is known as 'crest', whereas the lowest point is known as 'trough'. Electromagnetic waves can be split into a range of frequencies. This is known as the electromagnetic spectrum. Examples of EM waves are radio waves, microwaves, infrared waves, X-rays, gamma rays, etc.
- None, ma'am!
- Electromagnetic Waves
- Are there anymore questions class?
- If so, I hope you understood our topic for today
- *The bell rings*
- Electromagnetic Waves
- That concludes this day's lecture. Class dismissed!
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