AQA GCSE Physics Equations to learn

Description

Flashcards testing the word and symbol equations for all equations needed for AQA GCSE physics exams
R Lucas
Flashcards by R Lucas, updated more than 1 year ago
R Lucas
Created by R Lucas about 3 years ago
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Resource summary

Question Answer
What is the equation for Kinetic energy? What unit is energy measured in? K.E = 1/2 x mass x speed^2 joules (J)
What is the equation for GPE? What does GPE stand for? GPE = mass x g X height GPE is gravitational potential energy
What are the two equations for power? power = work done / time taken power = Energy transferred / time taken
What is efficiency in terms of power? Useful power output / total power input
What is efficiency in terms of energy transfer? useful energy output / total energy input
What is the equation for charge flow? Charge flow = current x time Q = It
What is Ohm's law? (Equation for potential difference) Potential difference = Current x resistance V=IR
What is the total resistance of two resistors R1 and R2 in series? total resistance (series) = R1 + R2
What is the total resistors of two resistors R1 and R2 in parallel? total resistance (parallel) 1/R = 1/R1 + 1/R2
What is electrical power in terms of potential difference? Power = potential difference x current P=IV
What is electrical power in terms of resistance and current? Power = current^2 x resistance P=I^2 R
What is energy transferred in terms of power? Energy transferred = power x time E=Pt
What is energy transferred in terms of charge flow? energy transferred = charge flow x potential difference E=QV
What is the equation for density? Density = mass / volume ⍴ = m/V
What is the equation for wave speed? Wave speed = frequency x wavelength v = f λ
What is the equation for weight? Weight = mass x gravitational field strength W = mg
What is the equation for work done? Work done = force x distance (along line of action of the force) W = Fs
What is Hooke's law? (Force on an extended spring Force = extension x spring constant F = k e
What is the equation for the moment of a force? moment = force x perpendicular distance M = Fd
What is the equation for pressure? force normal to surface/ surface area P =F/A
What is the equation for distance travelled? distance = speed x time s = vt
What is the equation for acceleration? (final velocity-initial velocity)/time taken a = (v-u)/t Change in velocity / time taken a = Δv/t
What is the equation for resultant force? Mass x acceleration F = ma
What is the equation for momentum? mass x velocity p = mv
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