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Physics > Waves > Flashcards

Waves Flashcards

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1
Q

What is a longitudinal wave

A

A wave that vibrates parallel to the direction of energy transfer.

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2
Q

What is a transverse wave

A

A wave that vibrates (oscillates) perpendicular to the direction of energy transer.

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3
Q

What is a scalar

A

A scalar has magnitude

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4
Q

What is a vector

A

A vector has direction and magnitude

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5
Q

Name 5 scalars

A

Energy
Speed
Distance
Mass
Time

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6
Q

Name 5 vectors

A

Force
Velocity
Displacement
Acceleration
Momentum

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7
Q

Name 4 longitudinal waves

A

Sound waves
Ultrasound waves
Seismic waves
Pressure waves

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8
Q

Name 3 transverse waves

A

Water waves
Vibrations
Electromagnetic waves

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9
Q

What is the electromagnetic spectrum

A

Transverse waves
Can travel though a vacuum
Spectrum of waves

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10
Q

Name the waves on the electromagnetic spectrum

A

Radio Waves
Microwaves
Infared
Visible
Ultraviolet
X - Rays
Gamma Rays

Red Men Invaded Venus Using X-RAY Guns

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11
Q

What is a mneumonic used to remember the electromagnetic spectrum

A

Red Men Invaded Venus Using X-ray Guns

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12
Q

Does a gamma ray have a short or long wavelength

A

Short

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13
Q

Does a radio wave have a low or high frequency

A

Low

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14
Q

Name the wave used for communication

A

Radio waves

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15
Q

Uses of radio waves

A

Broadcasting and communications

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16
Q

Uses and dangers of microwaves

A

Cooking and satellite transmissions
Internal heating of body tissues (damage, burns etc)

17
Q

Uses and dangers of infrared

A

Heaters and night vision
Skin burns

18
Q

Uses of visible light

A

Optical fibres, photography, human sight

19
Q

Uses and dangers of ultraviolet

A

Fluorescent lamps, tanning beds
Damage to skin cells, blindness, skin cancer

20
Q

Uses of x - rays

A

Observing internal structures of objects and materials, including the body for medical purposes

21
Q

Uses and dangers of gamma rays

A

Sterilising food equipment and medical equipment
Cancer, mutations

22
Q

Protective measures from electromagnetic spectrum

A

Shortening exposure time and standing behind or using lead lined equipment

Physics (7 decks)

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