Light’s Interaction with Materials
Lab Note Sheet
You’ve already learned that materials can be transparent, translucent, and opaque. Now
you are going to learn how light reacts when it encounters these materials.
Part 1: Place the pencil into the beaker of water in front of you. What do you observe
happens?
Draw it:
This is called: ________________________
Examples of ______________ are:
Part 2:
Materials:
● Light Sensor
● Mirror
● Paper
● 2 Rulers
● Flashlight
● Angles Page
Procedure:
1. Set up your flashlight, 2 rulers, light sensor, and angles page the way your
teacher demonstrates.
2. First, use the mirror. Record the amount of light in the readings when the
flashlight and light sensor are at each position:
a.
Flashlight Position
Light Sensor Position
1
1
2
2
3
3
4
4
5
5
Light Sensor Reading
3. Next, use the paper. Record the amount of light readings when the flashlight and
light sensor are at each position:
a.
Flashlight Position
Light Sensor Position
1
1
2
2
3
3
4
4
5
5
Light Sensor Reading
4. Discuss the results with your group.
5. Draw what you think is happening to the light rays when they hit the two
surfaces.
Hint:
Magnified Mirror Surface
Magnified Paper Surface
Draw what happens when light hits the surfaces:
When Light Hits a Mirror
When Light Hits a Paper
Smooth Surface
Rough Surface
This is called: ________________
This is called: _________________
Examples of _____________ are:
Examples of _______________ are:
Early Finishers: Begin writing your CER. Due Thursday.