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5.1 Flashcards

(13 cards)

0
Q

What is a ray model of light

A

A representation where light is a straight line

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1
Q

What is partial model of light

A

A lantern flame was thought to release tiny particles of light, which travelled in a perfectly straight line until they enter an eye, where they were absorbed to make an image

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2
Q

What is a transparent material

A

Light can pass through it without changing there path

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3
Q

Translucent

A

Most light rays get through but are scattered in all directions

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4
Q

Opaque

A

Prevents any light to get through

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5
Q

What are three uses for the day model of light

A

To find where shadows will form.

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6
Q

If you are walking away from the sun will your shadow get bigger or smaller?

A

Bigger because it blocks the light rays behind you.

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7
Q

What does a surface need to be a mirror

A

It need to be smooth compared to a wavelength of the light striking the surface.

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8
Q

How does light reflect off a mirror

A

It the light strikes it straight on it bounces off straight. If it’s on an angle it bounces off on an angle

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9
Q

Is the light falling on black print being absorbed?

A

Yes

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10
Q

What is the incoming ray of light called

A

Incident ray

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11
Q

What is the opposite of the angle of incident?

A

Angle of reflection

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12
Q

How to you measure the angle of reflection or incident.

A

From the angle and the normal

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