Science Lesson A: Behaviour of light through media

Subject: Science (Physics)
Location: Physics Lab
Conducted by: Mr Tan Hoe Teck

A) Lesson Objectives:
Content/Knowledge
Students will know...

1. The terms used for reflection, such angle of deviation for 1 and 2 mirrors
2. Reflection can occur if light travels from a denser to a less dense medium
3. The application of total internal reflection is related to the use of optical fibres in telecommunication, water fountain shows and diamonds

Skills

Students will be able to ...

1. Set up and carry out an experiment related to multiple reflections
2. Measure angles using a protractor
3. Plot a simple graph

B) Lesson Activities 

Worksheet/Reflection

1) Laser through a water container:

Thinking Routine	Questions	Write down your responses
See	What do you see? Observe the images of the light source. What are their characteristics?
Think	What do you think will happen if the stream of water is longer?
Wonder	What does it make you wonder? How can we transmit information if this method works?

2) Laser through a diamond crystal:

Thinking Routine	Questions	Write down your responses
See	What do you see? Observe the images of the light source. What are their characteristics?
Think	What is it that makes the diamond sparkle?
Wonder	What does it make you wonder? How can you increase the sparkle?

3) How the angle of the light beam depends on the angle between 2 mirrors:

Thinking Routine	Questions	Write down your responses
See	What do you see? Observe the images of the light source. What are their characteristics?
Think	What do you think will happen if you increase the angle of incidence?
Wonder	What does it make you wonder? How can we create multiple images?