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Flashcards in Equations Deck (18):
1

Speed(m/s)

Distance(m)
/
Time(s)

2

Weight(N)

Mass(kg) x Gravitational Field Strength(N/kg)

3

Efficiency (2)

Total useful energy transferred(J)
/
Total energy transferred (J)


OR

Total useful power output(J)
/
Total power output(J)

4

Work Done(J)

Force(N) x Distance(m)

5

Force applied to a spring(N)

Spring constant(N/m) x extension(m)

6

Moment of a force(Nm)

Force(N) x Distance(m)

7

Pressure(N/m)

Force applied(N)
/
Surface area(m² )

8

Acceleration(m/s² )

Change in velocity(m/s)
/
Time taken(s)

9

Resultant Force(N)

Mass(kg) x Acceleration(m/s² )

10

Momentum(kgm/s)

Mass(kg) x Velocity(m/s)

11

Kinetic energy(J)

0.5 x mass x (speed)²

12

Gravitational Potential Energy(J)

Mass(kg) x Gravitational field strength(N/kg) x height(m)

13

Power(W) (4)

1) Energy Transferred / Time taken
2) Work Done / Time taken
3) Potential difference x Current
4) (current)² x Resistance

14

Wave Speed(m/s)

Frequency(Hz) x Wavelength(m)

15

Charge Flow(C)

Current(A) x Time(s)

16

Potential Difference(V)

Current(A) x Resistance(Ohms)

17

Energy Transferred(J) (2)

1) Power(W) x Time(s)

OR

2) Charge Flow(C) x Potential difference(V)

18

Density(Kg/m^3)

Mass(kg) / Volume(m^3)