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Physics Year 9 > Wave Properties > Flashcards

Wave Properties Flashcards

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1
Q

What are the two types of waves?

A

Transverse and longitudinal Waves

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2
Q

What do Waves do?

A

Waves transfer energy, however they don’t transfer any matter

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3
Q

What does a wave do to travel?

A

Waves vibrate or oscillate

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4
Q

What is maximum displacement of a wave called?

A

Amplitude

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5
Q

What is the very top of a wave called?

A

The crest

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6
Q

What is the distance of one entire oscillation called?

A

It is called wavelength

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7
Q

What is the very bottom of a wave called?

A

Trough

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8
Q

What does displacement mean?

A

How far from equilibrium point has the wave oscillated.

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9
Q

What is a time period?

A

The time it takes for one complete oscillation

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10
Q

What is the equation of frequency?

A

1/time period

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11
Q

What is frequency measured in?

A

Hertz (Hz)

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12
Q

What is the equation for wave speed?

A

Frequency x Wavelength

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13
Q

What must you convert wavelength into?

A

You must convert it into Ms

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14
Q

What is a transverse wave?

A

Oscillations perpendicular to the direction of energy transfer

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15
Q

What is a longitudinal wave?

A

Oscillation that are parallel to the direction of energy transfer

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16
Q

What is compression?

A

When waves are closer together

17
Q

What is rarefraction?

A

When waves are further apart

18
Q

True or false:

Longitudinal do not require a medium to travel in

A

False

19
Q

Which colour has the longest wavelength?

A

Red

20
Q

Which colour has the shortest wavelength?

A

Violet

21
Q

What is black?

A

Abscense of light

22
Q

What is white?

A

A combination of all wavelengths

23
Q

What is the colour of something dependent on?

A

The wavelengths hitting it and the properties of the object. This will determine which wavelengths will be absorbed, transmitted or reflected.

24
Q

What is absorption?

A

When a wave losses its energy as it transmits into a material

25
Q

What is transmission?

A

When a wave travels into a new medium or travels through a medium

26
Q

What is reflection?

A

The change in direction of a wavefront.

27
Q

What do transparent and translucent object do?

A

They transmit a lot of light

28
Q

Do transparent objects transmits all the light?

A

No they transmit most of it.

Physics Year 9 (4 decks)

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