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Science > Waves > Flashcards

Waves Flashcards

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1
Q

What is a wave?

A

The transfer of energy from one place to another

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2
Q

What is energy?

A

Potential, Kinetic

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3
Q

What is heat?

A

A form of energy when particles are moving fast

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4
Q

What is heat transfer?

A

Heat always moves from where it is hotter to cooler

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5
Q

What is conduction

A

Where heat transfers through a solid

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6
Q

What is convection?

A

Movement of heat between liquids and gases

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7
Q

What is radiation?

A

The movement of heat to gases

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8
Q

Conductors and Insulator

A

Conductors allows the flow of heat in one or more direction
Insulators don’t allow the passage of heat to flow

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9
Q

Transverse Wave?

A

Oscillation is perpendicular to the direction of the wave e.g. light and water waves

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10
Q

longtitudal wave

A

Oscillation is parallel to the direction of the wave e.g sound
needs particles

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11
Q

Wave length

A

Distance between crests

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12
Q

Amplitude

A

The height from the equilibrium to crest (a)

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13
Q

Compression

A

When particles are squashed together

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14
Q

Medium

A

Substance that carries a wave from one llocation to another

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15
Q

Rarefraction

A

Separate particles

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16
Q

Hertz

A

Unit of frequency

17
Q

What is a light wave?

A

Electromagnetic waves that travel through a medium or vacuum

18
Q

Reflection

A

The light reflected off a smooth surface

19
Q

Law of reflection

A

angle of incidence = angle of reflection

20
Q

Why can’t you see the reflection on all surfaces?

A

Surfaces have to be smooth in order for the light rays to reflect in the same direction however on rough surfaces the rays bounce of at different angles and reflection

21
Q

Refraction

A

The bending of light rays when they travel through different densities

22
Q

Lens?

A

Piece of transparent material that can focus or disperse light

23
Q

convex

A

Rays spread out revealing a larger imagee.g car mirror

24
Q

Concave

A

Rays meet at a focus point e.g binoculars

25
Q

SOund wave

A

Form of energy that is created through vibrations

26
Q

Pitch

A

How high or low a sound is

27
Q

Decibel

A

The loudness of a sound

28
Q

Why can no sound be heard on space

A

Space is a vacuum meaning their are no particles and sound waves need particles to produce sound

29
Q

What is the wave equation

A

Velocity = frequency x wave length

Science (5 decks)

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