Waves and Light Unit 3 Review

An example of a natural light source is

• the moon

• a candle

• the sun

• a torch

When an object blocks light, you get

• an eclipse

• a surprise

• a shadow

• darkness

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Light travels in

• zig zags

• waves

• straight lines

• circles

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Which surface would reflect light the best?

• light coloured and smooth

• dark coloured and smooth

• dark coloured and rough

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Mirrors work by

• Absorbing the light

• Refracting the light

• Reflecting the light

• Letting the light through

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How do we see an object?

• Light reflects off the object and into our eyes.

• Light travels from our eyes and reflects off the object

• Light reflects off our eyes and enters the object

• The object produces its own light

Which of these statements is false?

• Light travels very fast

• Light can pass through any material

• Light travels in straight lines

• We need light to see

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Which of these provides the best explanation for why the pencil appears broken?

• The pencil absorbs the light rays that hit it.

• Water reflects light rays away from the pencil.

• Light rays are bent by the water in the glass.

• The surface of the water reflects the light rays.

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Which of the following is the best example of an object transmitting light?

• A black sweater in the sun.

• A clean window in the sun.

• A curved mirror in the sun.

• A long shadow in the sun.

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Energy from visible light travels in...

• Transverse waves

• Longitudinal waves

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