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Physics > Topic 6- Waves In Air, Fluids And Solids > Flashcards

Topic 6- Waves In Air, Fluids And Solids Flashcards

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1
Q

What are the 2 types of waves?

A

Transverse and longitudinal

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2
Q

What is a transverse wave?

A

A wave where the oscillations are perpendicular to the direction of energy transfer

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3
Q

What is a longitudinal wave?

A

A wave where the oscillations are parallel to the direction of energy tranfer

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4
Q

What is an example of transverse waves?

A

Electromagnetic

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5
Q

What is an example of longitudinal waves?

A

Sound waves

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6
Q

What are the 2 parts of longitudinal waves called?

A

Compressions and rarefactions

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7
Q

What is amplitude?

A

Maximum displacement of a point on a wave from its undisturbed position

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8
Q

What is wavelength?

A

Most commonly peak to peak or trough to trough

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9
Q

What is the frequency?

A

The number of waves that passes a given point each second

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10
Q

What is the unit of frequency?

A

Hertz, Hz

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11
Q

What is meant by a frequency of 200Hz

A

200 waves pass a given point each second

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12
Q

What is wave speed?

A

The speed at which the wave moves

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13
Q

What does a wave transfer?

A

Energy

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14
Q

What word describes when a wave bounces off a surface?

A

Reflection

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15
Q

How do waves travel through a solid?

A

Particles vibrate and transfer kinetic energy through material

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16
Q

What are ultrasound waves?

A

Waves that have a frequency higher than the upper limit of human hearing

17
Q

Give an example of use for ultrasound waves?

A

Medical or industrial imaging

18
Q

State a difference between the mediums that P-waves and S-waves can travel through

A
  • P-waves travel through solids and liquids

- S-waves only travel through solids

19
Q

What technique is used to detect objects in deep water and measure water depth?

A

Echo sounding
High frequency sound waves are emitted, reflected and detected
Time difference between emission and detection, alongside wave speed, are used to calculate distances

Physics (10 decks)

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