1. Title: Reflection 24 June 2018
Starter
Can you explain these two pictures?

2. Title: Reflection 24 June 2018
Today we will be finding out about reflection.
You will know you have been successful when you have:
Carried out the experiment to find out the path that light travels in and plotted your results on a graph (Level 5)
Used your graph to identify patterns in your results and used the correct key terms to summarise them. (Level 6)
Used ideas about reflecting to describe some real-life applications of reflections
(Level 7/8)

3. Mirror
Reflected ray
Incident ray
Normal Line

4. Investigating Reflection
Aim: To see how the angle of incident is
related to the angle of reflection
Ray box

5. Results

6. Now plot a graph of your results
Remember:
The dependent variable goes on the x-axis
Marks on graphs are awarded for
Meaningful title
Correctly labelled axes
A suitable scale
Your graph being big enough
Points correctly plotted in pencil
A suitable line of best fit

7. Now plot a graph of your results
Angle of reflection/°
Angle of incidence/°

8. Conclusion
What shape is the graph?
What does this mean?
What is the relationship between the
angle of incidence and the angle of
reflection?
What problems did you have?

9. The law of reflection
When light hits a plane mirror: “Angle of incidence is equal to the angle of reflection.”

10. Homework
Complete ‘The Periscope’ worksheet
Remember:
Answer in full sentences
Use diagrams if they will help your explanation
Hand in on FRIDAY