P1.3.1 - Light Flashcards

1
Q

What is a light source?

A

Something that emits light

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2
Q

How does light reach our eyes from a book?

A

It reflects from the page into our eye

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3
Q

A luminous object ______ light

A

gives out

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4
Q

Objects that transmit light are called?

A

transparent

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5
Q

Light does not transmit through __________ materials.

A

opaque

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6
Q

Light can travel through translucent materials (like tracing paper) but it is ___________.

A

scattered

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7
Q

We see a book when light is absorbed in?

A

our eye

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8
Q

non luminous objects __________ light.

A

reflect

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9
Q

A light source is something that

A

emits light

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10
Q

the speed of light is?

A

300,000 km/s

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11
Q

Light can travel through empty space, which is called a …

A

vacuum.

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12
Q

A light year is the distance

A

that light travels in a year.

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13
Q

Light travels as a

A

wave

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14
Q

A transparent material is one which allows

A

light to pass through

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15
Q

In your notebook draw the arrows to show how hte light travels to the readers eye

A
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