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Physics > Waves > Flashcards

Waves Flashcards

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1
Q

What is a wave?

A

How energy moves from one place to another

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2
Q

Name the 2 types of waves

A

Longitudinal and transverse

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3
Q

What is oscillating?

A

Moving in the same way repeatedly

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4
Q

What is a longitudinal wave?

A

A wave in which the vibrations that make up the wave move backwards and forwards as the wave itself moves along

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5
Q

What is a transverse wave?

A

A wave in which the vibrations that make up the wave move up and down as the wave itself moves along

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6
Q

Give 2 examples of a longitudinal wave

A

Sound waves, P waves

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7
Q

Give 2 examples of a transverse wave

A

Light waves, S waves

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8
Q

What is frequency measured in?

A

Hertz (Hz) or number of waves per second

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9
Q

The closer the waves…

A

the higher the sound

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10
Q

The lower the waves..

A

the quieter the sound

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11
Q

What is the speed of sound (in air)

A

330 m/s

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12
Q

What is the speed of light (in space & air)

A

3000,000,000 m/s

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13
Q

Speed =

A

distance ÷ time

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14
Q

Wavespeed =

A

frequency x wavelength

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15
Q

Ray of light going into a mirror =

A

incident ray

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16
Q

Ray of light coming out from a mirror =

A

reflected ray

17
Q

The reflected angle is equal to…

A

the incident angle

18
Q

A single ray of light is reflected..

A

specular reflection

19
Q

multiple rays of light are reflected

A

diffuse reflection

20
Q

When light goes into something that is denser than air, it is _ _ _ _ _ _ _ _ _ towards the _ _ _ _ _ _ line

A

refracted, normal

21
Q

When light goes through something less dense than air, it is refracted away from the ? line

A

normal

22
Q

If light goes in/comes out of something at an angle..

A

it will change direction

23
Q

What is ultrasound?

A

a soundwave which you can’t hear

Physics (5 decks)

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