Light and Vision

What is light?

• The absence of darkness.

• A form of energy that travels in a straight line from a light source.

• What we can see through our eyes.

• Rays coming out from everything.

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What is darkness?

• The absence of light.

• Any object that produces light

• Black colour

• We can't see

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NGSS.4-PS4-2

Light is a type of ________.

• Energy

• Heat

• Force

• Power

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Which light source is a natural source of light?

• Water

• Moon

• Lighting

• Firefly

What happens when light hits an object?

• It is reflected off the object.

• It moves around the object.

• It goes through the object.

• All of it gets absorbed

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NGSS.MS-PS4-2

How does light travel?

What is reflection?

• When an object emits light.

• The absence of light.

• When light bounces off an object.

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NGSS.MS-PS4-2

• The pupil

• The lense

• The optic nerve

Which best describes the pupil?

• Carries the signal from the eye to the brain.

• The hole through which the light enters.

• Focuses the light on to the retina.

What types of materials are reflective?

• Dull, dark materials.

• Smooth, shiny materials.

Tags

NGSS.MS-PS4-2