Optics 3: Refraction

Forces and Motion
Lesson 11.
Refraction of Light
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Slide 1: Tekstslide
PhysicsSecondary EducationAge 13

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Forces and Motion
Lesson 11.
Refraction of Light

Slide 1 -Tekstslide

How are you today?
😒🙁😐🙂😃

Slide 2 -Poll

Highlights of the Day
•  describe refraction of light at the boundary between air and glass or air and water in terms of change in speed
• Values :  Responsibility and Determination

Let's do this!

Slide 4 -Tekstslide

• In one minute, list as many transparent materials as you can. Try to include solids, liquids, and gases.
• Why do you think you cannot see clearly when looking through a glass of water?
timer
1:00000

Slide 5 -Tekstslide

The background, through the glass of water, appears distorted which means changed to be _______
A
clearer
B
less clear
C
transparent

Slide 6 -Quizvraag

The background through the glass of water appears distorted because of ____________.
A
reflection
B
refraction

Slide 7 -Quizvraag

The material that light passes through is called a __________.
A
medium
B
opaque
C
ray

Slide 8 -Quizvraag

Which is NOT an example of a medium?
A
air
B
glass
C
water
D
wood

Slide 9 -Quizvraag

You will remember that light travels 'very fast'. The speed of light in air is __________ kilometres per second.
A
30
B
30 000
C
300 000
D
300 000 000

Slide 10 -Quizvraag

When light passes from air into water or glass, the light travels ________.
A
slower
B
faster
C
at the same speed
D
at 0 m/s

Change in speed

Slide 12 -Tekstslide

The change of speed can cause the light to change ___________.
A
its speed
B
its direction
C
distance

Slide 13 -Quizvraag

____________ of light is defined as the change in direction of light on passing from one medium to another because of change in speed.
A
Reflection
B
Diffraction
C
Refraction

Simulation

Slide 15 -Tekstslide

Self-survey: Rate your level of understanding and participation in this lesson.
15