Unit 10: Refraction

Today we learned a lot about refraction. Refraction is the changing of direction of a wave due to changes of wave speed due to medium. Refraction is dependent on the medium because the medium affects the speed of light, which changes the direction of the light. The larger the index of refraction, the slower the speed of light in that medium. Faster medium to a slower medium, light will bend towards the normal.
We also learned about lenses. Converging lenses make light come together whereas diverging lenses make light spread out.

We learned about image characteristics as well. Real is when the light converges at one point and can be focused. Virtual is when light does not converge at image and the image will appear inside of mirror lens. That would be an example of a regular or flat mirror. Upright is right side up with relation to object. Inverted is upside down with relation to object. Magnified is larger than the actual object. The mirror is always curved not flat. Reduced is smaller than the actual object.

This is a magnified mirror because the mirror is curved and in the mirror objects seem closer and larger than actual.