1. Light can be reflected, transmitted and absorbed.

2. Transparent: transmits light Translucent: scatters light Opaque: absorbs or reflects all light that strikes it

3. Regular Reflection Parallel rays of light hit a smooth surface

4. Diffuse Reflection Also known as scattering Parallel rays of light hit a bumpy or uneven surface

5. Reflect Light

6. Plane Mirror Angle of Incidence equals the Angle of Reflection

7. Concave Mirror Brings parallel rays of light together

8. Convex Mirror Reflects parallel rays outward

9. Refract Light

10. Concave Lens

11. Convex Lens

12. Real images are those where light actually converges, whereas virtual images are locations from where light appears to have converged.

13. Virtual Image : an image formed when rays are perceived to meet Virtual images cannot be captured on a screen, because they are only formed by light rays APPEARING to have come from the same place. They always appear right-side up.

14. Real Image : an image in which perceived location is actually a point of convergence of the rays of light that make up the image. Real images can be captured on a screen. They are created by converging light rays, and always appear upside-down.

15. energy that can travel through space in the form of waves even when no matter is present

16. When the electric field changes (accelerates or decelerates) so does the magnetic field causing an electromagnetic wave. The accelerated electrons give off energy of varying wavelengths.

17. The Electromagnetic Spectrum All electromagnetic radiation travels at the same speed, but at different wavelengths