1. Unit 3: Waves and Light Lesson 4: Interactions of Light
How does matter transmit light?
1. Transparent: mediums that allow light to completely travel through it; for example-glass, water, and air
2. Translucent: mediums that allow some light to pass through in many different directions; for example-frosted glass, shaded lamps and tissue paper

2. Unit 3: Waves and Light Lesson 4: Interactions of Light
What kind of matter can light absorb?
1. Opaque: does not let any light pass through causing light to either be reflected or absorbed; for example-wood, metal, brick, dark colored clothing

3. Unit 3: Waves and Light Lesson 4: Interactions of Light
We see specific colors when an object reflects that specific color and is reflected into our eyes. (opaque)
When an object reflects every color, the object appears white.
When an object absorbs every color, the object appears black.
When it comes to transparent or translucent objects we see the color being absorbed rather than the color being reflected.

4. Unit 3: Waves and Light Lesson 4: Interactions of Light
How does a medium affect the speed of light waves?
What wave interaction influences the direction of light?
How does the direction of light change with refraction?