definitions - waves Flashcards

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1
Q

absorb

A

taken into a material

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2
Q

brain

A

organ in human that processes signals from receptors

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3
Q

continuous

A

variable that has values that can be any number

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4
Q

emit

A

to give out

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5
Q

filter

A

piece of material that allows some radiation (colours) through but absorbs the rest

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6
Q

frequency

A

number of complete waves or vibrations produced in one second (hertz)

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7
Q

inverted

A

upside down

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8
Q

medium

A

material that affect light or sound by slowing it down or transferring the wave

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9
Q

luminous

A

gives out light

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10
Q

light time

A

distance measured in terms of how far light travels in a given time

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11
Q

non luminous

A

produces no light

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12
Q

plane

A

mirror with flat reflective surface

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13
Q

reflect

A

bounce off

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14
Q

source

A

emit/give out light or sound

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15
Q

transmit

A

light or other radiation passes through an object

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16
Q

vacuum

A

space in which there is no matter

17
Q

wave

A

vibration that transfers energy