Formulas and Units Flashcards

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1
Q

Energy transferred, charge and voltage

A

E(J) = Q(c) x V(v)

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2
Q

Voltage, current and resistance

A

V(v) = I(a) x R(Ω)

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3
Q

Power, current and voltage

A

P(W) = I(a) x V(v)
also P = I^2R

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4
Q

Energy transferred, current. voltage and time

A

E(J) = I(a) x V(v) x t(s)
since It = Q and E = Q x V

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5
Q

1W, 1000W, 1,000,000W

A

Watt, Kilowatt, Megawatt

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6
Q

Work Done, Force and Distance

A

W(J) = F(N) x d(m)

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7
Q

GPE =

A

mgh

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8
Q

KE =

A

1/2 x m x v^2

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9
Q

Power, Work Done and Time taken

A

P(W) = W(J)/T(s) or P = E/T

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10
Q

Final speed, initial speed, acceleration and distance moved

A

v^2 = u^2 - 2as

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11
Q

Density, mass and volume

A

P(denoted in pho - kg/m^3 or g/cm^3) = m(kg)/v(m^3)

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12
Q

Pressure, force and area

A

P(Pa) = F(N)/A(m^2)

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13
Q

Pressure difference, height, density and gravitational force

A

p(pressure diff.) = h(m) x p(density) x g(N/m)

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14
Q

Initial and final pressure and temp

A

P1/T1(K) = P2/T2 at a fixed mass of gas at a constant volume
MAKE SURE TEMPERATURE IS IN KELVIN

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15
Q

Initial pressure and volume

A

p1V1 = p2V2

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16
Q

Converting Kelvin to Celsius

A

T(K) = T(C) + 273