what do you know about the way that light behaves with mirrored in both periscope and kelidoscope
Answers
Answer:
In this activity, students use the law of reflection to create their own periscope.
A periscope lets you look around walls, corners or other obstacles. Submarines have periscopes so that people inside can what is on the surface of the water.A periscope is a useful example of the law of reflection at work. It’s important that your mirrors are placed at a 45° angle, because light always reflects away from a mirror at the same angle that it hits it. In a periscope, light from an object strikes the top mirror at 45° and bounces off at the same angle. This sends light directly down the tube and onto the lower mirror. This mirror, also at a 45° angle, reflects light directly to your eye.
Objectives
Describe how light rays can change direction.
Demonstrate how visible light is reflected.
Materials
Per Adult:
1 craft knife
Per Student:
2 clean 1-litre milk or juice cartons
2 small, flat mirrors (less than 9 cm in at least one dimension)
ruler
marker
tape
scissors
Explanation:
The periscope is an instrument used to see over or around objects. This is done by angling mirrors 45 degrees to one another inside of a tube. In this exercise, students will be making a periscope from empty milk containers. This is a great way for students to learn about light reflection.