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Physics - AQA > Topic 6 - Waves (paper 2) > Flashcards

Topic 6 - Waves (paper 2) Flashcards

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1
Q

What is the wavelength?

A

The distance of one entire oscillation of that wave

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2
Q

What is the amplitude of a wave?

A

The maximum displacement from the equilibrium position.

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3
Q

What is the time period?

A

The time it takes for one entire oscillation of a wave

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4
Q

What is the formula for frequency of a wave?

A

f = 1/T
frequency = 1/period

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5
Q

What is the unit for frequency?

A

Hz

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6
Q

What is the formula for wave speed?

A

wave speed = frequency x wave length

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7
Q

Which wave has oscillations that are perpendicular to the direction of energy transfer?

A

Transverse wave

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8
Q

Which wave has oscillations that are parallel to the direction of energy transfer?

A

Longitudinal wave

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9
Q

Are waves always reflected?

A

No, only sometimes

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10
Q

What can happen when a light hits a material?

A

Absorbed, reflected, transmitted

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11
Q

In reflection, the angle of incidence is always ……… the angle of reflection.

A

Greater than

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12
Q

What must the surface be like for specular reflection to occur?

A

The boundary is flat

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13
Q

What type of image will specular reflection produce?

A

A clear image

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14
Q

What type of reflection occurs on materials where the surface is bumpy?

A

Diffuse

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15
Q

What type of image is created in diffuse reflection?

A

A clear image

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16
Q

What is refraction?

A

The change in direction of a wave, as it passes from one medium to another, and is caused by its change in speed.

17
Q

How fast does light travel in a more dense material?

A

Slowly

18
Q

What way will the light bend when travelling from a less dense material into a more dense material?

A

Towards the normal

19
Q

When a wave travels into a more dense medium, the wave speed decreases. What happens to the frequency of the wave?

A

It stays the same

20
Q
A

Physics - AQA (5 decks)

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