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Flashcards in Equations Deck (20):
1

Equation for distance speed time

Distance Travelled = average speed x time

2

Equation for acceleration

Acceleration = (v^2 - u^2) / t

3

Equation for force

Force = mass x acceleration

4

Equation for efficiency

Efficiency = useful energy / total energy

5

Equation for momentum

Momentum = mass x velocity

6

Equation for wave speed

Wave speed = frequency x wavelength

Wave speed = distance / time

7

Equation for work done

Work done = force x distance moved in that direction

8

Equation for change in gravitational potential energy

Mass x gravitational field strength x change in vertical height

9

Equation for Kinetic energy

0.5 x mass x speed^2

10

State the four Equations for power

Power = work done / time
Power = Current^2 / Resistance
Power = Current x voltage
Power = energy / time

11

Equation for Weight

Weight = mass x gravitational field strength

12

Equation to calculate a moment

Moment = force x distance from pivot

13

Equation for pressure

Pressure = force / surface area

14

State both equations for wave speed

Wave speed = distance / time

Wave speed = frequency x wavelength

15

Equation for energy transferred (electricity)

Energy = charge x voltage

16

Equation for charge

Charge = current x time

17

Equation for voltage

Voltage = current x resistance

18

Equation for electrical power

Current x potential difference
Current^2 x resistance

19

Equation for force (spring)

K x extension

21

Equation for density

Mass / volume