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GCSE > Physics > Flashcards

Physics Flashcards

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1
Q

What is a quantity?

A

Something you measure

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2
Q

Mass = ?

A

Grams/kilograms/milligrams

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3
Q

Current = ?

A

Amps

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4
Q

Force = ?

A

Newtons

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5
Q

Speed = ?

A

m/s

Measurement/seconds

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6
Q

Acceleration = ?

A

ms-1

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7
Q

Time = ?

A

Seconds, minutes, hours, days

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8
Q

Energy = ?

A

J or joules

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9
Q

Height = ?

A

Metres, cm, mm, ft

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10
Q

Definition of peak

A

Highest point of the wave

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11
Q

Definition of trough

A

Lowest point of the wave

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12
Q

Definition of frequency

A

The number of waves passing a point per second

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13
Q

Frequency units

A

Hz

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14
Q

Definition of amplitude

A

The maximum displacement (highest of a wave)

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15
Q

Amplitude units

A

A

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16
Q

Definition of wavelength

A

The distance from peak to peak (or from

trough to trough)

17
Q

Definition of time period

A

The time it takes one wave to pass a point

18
Q

Time period units

A

s

19
Q

Name four properties of electromagnets waves

A

Light travels in a vacuum
Light travels as fast as in a vacuum
Particles, they don’t need them
Transverse wave

20
Q

Name the electromagnetic spectrum in order

A 
Radio waves 
Microwaves 
Infrared 
Visible light 
Ultraviolet 
X-rays 
Gamma rays
21
Q

Name three ways a wave can interact with matter

A

Reflection
Absorption
Transmitted

22
Q

What is the use for gamma rays?

A

It treats cancer

23
Q

What is the dangers of gamma rays?

A

It kills cells

24
Q

What is the use for x rays?

A

Medicine

25
Q

What are the dangers of x rays?

A 
Vomiting 
Bleeding 
Fainting 
Hair loss
Loss skin
26
Q

What is the use for visible light?

A

Illumination

Photography

27
Q

What are the dangers of visible light?

A

None

28
Q

What is the use for infrared?

A

Security systems
Remote controls
Cameras

29
Q

What are the dangers of infrared?

A

Skin burns

30
Q

What is the use for microwaves?

A

Wireless networks
Satellites
Cancer treatment
Radars

31
Q

What are the dangers of microwaves?

A

Internal heating of cells

32
Q

What is the use for radio waves?

A

Communication
Broadcasting
Computer networks

33
Q

What are the dangers of radio waves

A

None

GCSE (14 decks)

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