Review Science

The distance that light travels in one year...

• Light year

• Quantumyear

• Stellar-year

• 1 million kilometers

A chunk of ice and dust whose orbit is usually a long, narrow ellipse is a ___________.

• meteor

• meteorite

• comet

• asteroid

what is diffraction

• when light splits up

• when light bends

• when light turns

• when light is forced to move

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what is constructive interference

• when two waves collide

• when two waves break each other

• when two wave make one wave

• or when to waves mix

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how do waves move

• by moving

• by energy

• by force

• or by you pushing it

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what waves do we not see?

• all

• none

• all but visible

• uv rays only

how can u.v rays affect you?

what is absorption?

• when you eat a golden apple

• when light gets absorbed

• when light gets taken away

• or when light gets pu away

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what causes a change in the earth's electromagnetic field

• acelleration in the flow of liquid in the earth's core

• something hit the earth

• solar flares

• or the northern lights

how do waves scatter

• when light hits it and goes into many lights sources

• light moves throught an medium and stays the same

• when lights moves

• or when light reflects in a medium

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