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GCSE Physics > Equations > Flashcards

Equations Flashcards

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1
Q

What is the equation for charge?

A

Charge (C) = Current (A) x Time (s)

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2
Q

What is the equation for potential difference?

A

P.D. (V) = Current (A) x Resistance (Ω)

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3
Q

What is the equation for P.D. in a series circuit?

A

Vtotal = V1 + V2 + …

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4
Q

What is the equation for current in a series circuit?

A

I1 = I2 = …

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5
Q

What is the equation for resistance in a series circuit?

A

Rtotal = R1 + R2

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6
Q

What is the equation for P.D. in a parallel circuit?

A

V1 = V2 = V3 = …

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7
Q

What is the equation for current in a parallel circuit?

A

Itotal = I1 + I2 + …

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8
Q

What is the equation for energy transferred (from power and time)?

A

Energy transferred (J) = Power (W) x Time (s)

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9
Q

What is the equation for energy transferred (from charge flow and potential difference)?

A

Energy transferred (J) = Charge flow (C) x P.D. (V)

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10
Q

What is the equation for power (from potential difference and current)?

A

Power (W) = P.D. (V) x Current (A)

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11
Q

What is the equation for power (from current and resistance)?

A

Power (W) = Current^2 (A) x Resistance (Ω)

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12
Q

What is the equation for efficiency (from useful output and total input energy transfer)

A

Efficiency = Useful output energy transfer/Total input energy transfer

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13
Q

What is the equation for efficiency (from useful power output and total power input)

A

Efficiency = Useful power output/Total power input

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14
Q

What is the equation for kinetic energy?

A

Kinetic energy = 1/2 x mass x (velocity)^2

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15
Q

What is the equation for gravitational potential energy?

A

G.P.E. = mass x gravitational field strength [10N/kg] x height

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16
Q

What is the equation for power (from work done and time)?

A

Power = Work done/time

17
Q

What is the equation for work done (from force and displacement)?

A

Work done = Force x displacement

GCSE Physics (1 decks)

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