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4.4 2017 > Exam Equations > Flashcards

Exam Equations Flashcards

1
Q

The relationship between average speed, distance moved and time taken

A

Average speed = Distance moved / Time taken

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2
Q

The relationship between force, mass and acceleration

A

Force = Mass x Acceleration

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3
Q

The relationship between acceleration, change in velocity and time taken

A

Acceleration = Change in velocity / Time taken

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4
Q

The relationship between momentum, mass and velocity

A

Momentum = Mass x Velocity

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5
Q

The relationship between density, mass and volume

A

Density = Mass / Volume

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6
Q

The relationship between work done, force and distance moved

A

Work done = Force x Distance moved

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7
Q

The relationship between energy transferred and work done

A

Energy transferred = Work done

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8
Q

The relationship for kinetic enegy

A

KE = 1/2 x mass x speed squared

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9
Q

The relationship for gravitational kinetic energy

A

GPE = mass x gravitational field strength x height

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10
Q

The relationship between mass, weight and gravitational field strength

A

weight = mass x gravitational field strength

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11
Q

The relationship between an applied force, the area over which it acts and the resulting pressure

A

Pressure = Force / Area

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12
Q

The relationship between the moment of a force and its perpendicular distance from the pivot

A

Moment = Force x Perpendicular distance from the pivot

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13
Q

The relationship between charge, current and time

A

Charge = Current x Time

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14
Q

The relationship between voltage, current and resistance

A

Voltage = Current x Resistance

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15
Q

The relationship between electrical power, current and voltage

A

Electrical power = Current x Voltage

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16
Q

The relationship between speed, frequency and wavelength of wave

A

Wave speed = Frequency x Wavelength

17
Q

The relationship between refractive index, angle of incidence and angle of refraction

A

n = sin (i) / sin (r)

18
Q

The relationship between refractive index and critical angle

A

sin (c) = 1/n

19
Q

The relationship for efficiency

A

Efficiency = (Useful energy output / Total energy output) x 100

20
Q

The relationship between turns and voltage for a transformer

A

Input voltage / Output voltage = Primary turns / Secondary turns

21
Q

The relationship between voltage and current for a transformer

A

Primary voltage x Primary current = Secondary voltage x Secondary current

22
Q

The relationship for pressure difference

A

Pressure difference = height × density × gravitational field strength

4.4 2017 (11 decks)

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