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General IGCSE Physics 2 > Equations > Flashcards

Equations Flashcards

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0
Q

Velocity =

A

Increase in displacement / time taken

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1
Q

Speed =

A

Distance travelled \ time taken

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2
Q

Acceleration =

A

Change in velocity / time taken

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3
Q

Force is proportional to what ?

A

Acceleration

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4
Q

Acceleration is inversely proportional to ??

A

Mass

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5
Q

Force (N) =

A

Mass (kg) x acceleration

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6
Q

Weight =

A

Mass of object (kg) x acceleration due to gravity

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7
Q

Momentum =

A

Mass (kg) x velocity

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8
Q

Force =

A

Change in momentum / time taken

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9
Q

Increase in momentum =

A

Force x time

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10
Q

Momentum before collision =

A

Momentum after collision

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11
Q

Moment of force (Nm) =

A

Force (N) x perpendicular force from pivot

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12
Q

Orbital speed =

A

2 x pi x orbital radius / time period

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13
Q

Power (watts) =

A

Current (amps) x voltage

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14
Q

Energy converted (j) =

A

Power (watts) x time (seconds)

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15
Q

Charge (coulombs) =

A

Current (amps) x time (seconds)

16
Q

Voltage =

A

Current (amps) x resistance (ohms)

17
Q

Frequency (hertz) =

A

1 / time period (seconds)

18
Q

Wave speed (m/s) =

A

Frequency (hertz) x wavelength (m)

19
Q

Refractive index =

A

Sine (incidence angle) / sine (refractive index)

20
Q

Sine (critical angle) =

A

1 / refractive index

21
Q

Work done (joules) =

A

Force (N) x distance (M)

22
Q

Change in GPE (joules) =

A

Mass (kg) x gravity x distance raised against gravitational force (metres)

23
Q

Kinetic energy =

A

1/2 x mass (kg) x speed (m/s)

24
Q

Power (watts) =

A

Work done (joules) / time taken (s)

25
Q

Gain in GPE =

A

Gain in GPE = gain of kinetic energy before impact

26
Q

Density =

A

Mass / volume

27
Q

Pressure (pascals) =

A

Force (N) / area (m/2)

28
Q

Pressure difference (pascals) =

A

Height (M) x density x gravity

29
Q

Pressure 1 x volume 1=

A

Pressure 2 x volume 2

30
Q

Pressure 1 / temperature 1 =

A

Pressure 2 / temperature 2

31
Q

Input voltage / output voltage =

A

Number of turns on primary coil / number of coils on secondary

General IGCSE Physics 2 (17 decks)

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