Light experiment (straight line)

We know that light travels in straight lines. In this experiment we are going to demonstrate this in an easy and fun experiment that you can do at home.

You can do this with an opaque cardboard

What do you need?

Some cardboard

Scissors

A screwdriver

A torch or a source of light

You can also use a cardboard box of any type. I have used a milk box. You just need to make two rounded holes the size of a pencil and that's all.

How to do the experiment

You put the box or the two pieces of cardboard in a table inside a dark room. Then you use the light. The box must be next to a wall so you can see the light.

Results

Only when you approach the hole with certain angle the light will go throught the two holes. That means that light travels in straight lines.

It's better if you hold the light with your hand and try to see the light on the wall.

Enjoy!! 😀