2. Bellwork Clear everything from desk except: P / P Vocab. Notebooks
Label the next entry “Light Vocabulary”
Go to the page that you will be taping your vocabulary sheet to and write down as many sources of light that you can think of, on your OWN!

3. Light
Vocabulary

4. Electromagnetic Spectrum
– a group of waves that includes:
Radio Waves
Microwaves
Infrared Light
Visible Light
Ultra Violet Light
X-Rays
Gamma Rays

5. (Visible) Light
– is the part of the electromagnetic spectrum that can be seen by the human eye

6. Transmission – the movement of light waves from one place to another
A medium is not needed for light waves to be transmitted
light traveling through space from the Sun to Earth
Remember…“trans” means across
Example:

7. Prism
- tool used to split white light into different wavelengths (colors) ed
range
ellow
reen
lue
ndigo
iolet R O Y G B I V

8. Refraction
– a change in direction (bending) of a light wave due to a change in its’ speed

9. Reflection
– a change in direction of a light wave due to an obstruction, this gives objects “color”

10. Color
– what we visually see (the absorbed wavelengths of light)

11. Absorption
– when an object takes in wavelengths of light, what is reflected is what we see as color

12. Scattering
– the spreading of light in all directions due to reflection and absorption

13. Transparent
– when an object allows most all light through it

14. Translucent
– when an object allows some light through it and spreads out the rest

15. Opaque
– when an object does not allow any light to pass through it because they reflect and/or absorb the light

16. The Electromagnetic Spectrum Song