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physics > gcse equations + units > Flashcards

gcse equations + units Flashcards

1
Q

what formula links power, energy and time?

A

energy = power x time

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2
Q

what formula links work done, force and distance?

A

work done = force x distance

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3
Q

what formula links mass, height, gravitational field strength and gravitational potential energy?

A

GPE = mass x GFS x height

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4
Q

what formula links mass, kinetic energy and velocity?

A

Ke = 1/2 x mass x velocity^2

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5
Q

what formula links efficiency, useful energy output and total energy input

A

efficiency = ( useful e.o ÷ total e.i ) x 100

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6
Q

what formula links useful power output, efficiency and total power input?

A

efficiency = ( useful p.o ÷ total p.i ) x 100

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7
Q

what formula links density, mass and volume?

A

mass = density x volume

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8
Q

what formula links potential difference, resistance and current?

A

p.d = current x resistance

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9
Q

what formula links current, time and charge?

A

charge = current x time

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10
Q

what formula links charge, energy and potential difference?

A

energy = charge x p.d

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11
Q

what formula links current, resistance and power?

A

power = current^2 x resistance

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12
Q

what formula links pressure, area and force?

A

force = pressure x area

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13
Q

what formula links current, power and potential difference?

A

power = current x p.d

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14
Q

what formula links spring constant, force and extension?

A

force = spring constant x extension

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15
Q

what formula links weight, mass and gravitational field strength?

A

weight = mass x GFS

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16
Q

what formula links mass, force and acceleration?

A

force = mass x acceleration

17
Q

what formula links braking distance, stopping distance and thinking distance?

A

s.d = t.d + b.d

18
Q

what formula links wavelength, wavespeed and frequency?

A

wavespeed = frequency x wavelength

19
Q

what formula links distance, speed and time?

A

distance = speed x time

20
Q

what formula links mass, momentum and velocity?

A

momentum = mass x velocity

21
Q

what formula links change in velocity, acceleration and time?

A

change in v. = acceleration x time

22
Q

what is the unit for frequency?

A

Hz, hertz

23
Q

what is the unit for power?

A

W, watt

24
Q

what is the unit for energy?

A

J, joule

25
Q

what is the unit for momentum?

A

kgm/s, kilogram metre per second

26
Q

what is the unit for charge?

A

C, coulomb

27
Q

what is the unit for activity?

A

Bq, becquerel

physics (10 decks)

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