Optics 4: Refraction Quiz

• Physics
• Secondary Education
• Age 13

Forces and Motion

Lesson 11. 

Refraction of Light

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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

Review Quiz

The light ___________when it passes from air into glass or water.

1. slows down
2. speeds up
3. remain constant

Light passing from one medium to another causes it to change ___________.

1. direction
2. force
3. distance
4. energy

Which is NOT an example of a medium?

1. air
2. glass
3. water
4. wood

You will remember that light travels 'very fast'. The speed of light in air is __________ kilometres per second.

1. 30
2. 30 000
3. 300 000
4. 300 000 000

The light passing from air into glass or water is bent _________ the normal.

1. away
2. under
3. across
4. towards

When light passes from air into glass or water, the angle of incidence is ________ than the angle of refraction.

1. lesser
2. the same
3. greater
4. more constant

Both of incident and refracted angles are measured from the __________.

1. normal
2. boundary
3. air
4. water

The light _________ when it passes from glass or water into air.

1. slows down
2. speeds up
3. remains the same
4. disappears

We say that the light passing from glass or water into air is bent _______ from the normal.

1. towards
2. across
3. away
4. the same

When light passes from glass or water into air, the angle of incidence is ________ than the angle of refraction.

1. lesser
2. the same
3. greater
4. more constant

Give ONE advantage of refraction.

Give ONE disadvantage of refraction.

____________ of light is defined as the change in direction of light on passing from one medium to another because of change in speed.

1. Reflection
2. Diffraction
3. Refraction

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

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