The Electromagnetic Spectrum (T3) Flashcards
1
Q
From lowest frequency to highest, list the main waves of the electromagnetic spectrum..
A
- radio waves
- microwave
- infrared
- visible light
- ultraviolet
- x-ray
- gamma ray
2
Q
Which wave in the electromagnetic spectrum carries the most energy?
A
Gamma radiation is extremely penetrating. It has a lot of energy per photon and passes energy onto whatever it hits.
3
Q
What are photons?
A
- photons are the smallest possible unit of light (like an atom if for matter)
- each photon has speed and energy
4
Q
At what speed do the different waves in the electromagnetic spectrum travel in a vacuum like space?
A
- they all travel at the same speed; the speed of light
- this is 300,000,000 m/s
5
Q
What is the electromagnetic spectrum?
A
- visible light is just one type of electromagnetic radiation
- there are various types of electromagnetic radiation and the electromagnetic spectrum is the umbrella terms for all of them together
6
Q
Are all types of electromagnetic radiation longitudinal or transverse waves?
A
Transverse
7
Q
List four properties than all waves in the EM spectrum have in common…
A
- they all transfer energy
- they are all transverse waves
- they all travel at the speed of light in a vacuum
- they can all be reflected, refracted and diffracted
