6.1 What is light

• Light — introduction
• Middelbare school
• havo, vwo
• Leerjaar 2

Science Period 

3 

Light and colour

Learning goals

Describe what light is

• Explain what light is made up
  
• Explain why light is a spectrum

What is the umbra and penumbra of a shadow?

How does a camera work?

What is light?

Light

Light is created in a light source.

Natural light vs artificial

 

Natural light source vs. artificial The main light source is the sun, this is a natural light source. Other natural light sources are lightning, fire and stars. Light sources that are made by people are called artificial light sources. For example, a light bulb, a candle and a fluorescent lamp.

Moon is a......

Lichtbronnen die door mensen gemaakt zijn noemen we kunstmatige lichtbronnen. Bijvoorbeeld een gloeilamp, een kaars en een tl-lamp.

Je kunt het licht uit een lichtbron tekenen als rechte lijnen, dit noemen we lichtstralen. 

What is a Prism

A prism is a triangular piece of plastic or glass.

With a prism you can separate white light into different colors.

The colors you see are called a spectrum or color band.

White light

Consists of multiple colors → spectrum. (Spectral colors)

What we can see = visible spectrum.

Red | Orange | Yellow | Green | Blue | Violet.

A prism can decompose the white light (like a rainbow).

The spectrum always has the same order

Afb. het spectrum

Sering colours

Wit licht              rood licht            geel licht      blauw licht

Light is a spectrum