6.1 What is light

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

Science Period 

4

Light

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?

• During classical explanation – have a question, raise your hand

• While working independently – disturb the class, go to olc 2 for the rest of the lesson with extra work

•  Not participating serious in the class (making noise, inappropriate jokes, etc.) — go to olc 2 with extra work

• Disturb the class – warning – come to school the next day at 8

What is light?

What is light?

The wave particle duality

Light is what we see

Light is what we see

Light is a form of energy

Light is what we see

Light is a form of energy

Light is an electromagnetic wave

Light is what we see

Light is a form of energy

Light is an electromagnetic wave

Light is a spectrum

Light is what we see

Light is a form of energy

Light is an electromagnetic wave

Light is a spectrum

Light is a wave particle (called a photon)

Light is an electro magnetic wave

Light is an electro magnetic wave

Light is a spectrum

6.1 What is light?

• Light is a way of transferring energy in the form of an electro magnetic wave
  

6.1 What is light

Light is a way of transferring Energy (EM waves)

• Electromagnetic waves can travel through empty space without loosing energy.
  

• Because of this the Sun is able to provide energy to the Earth — This is what makes life possible.

Luminous

•  Luminous — Source that give of light

• This light reflects of objects into our eyes (these objects are not luminous)

Umbra — Penumbra

Line of sight

Camera obscura

camera obscura, ancestor of the photographic camera.  It  consisted of small darkened rooms with light admitted through a single tiny hole. The result was that an inverted image of the outside scene was cast on the opposite wall, which was usually whitened

www.khanacademy.org

Working independtly

Homework:

• Yellow block exercises
  
•  Workbook exercises