1. average speed, distance and time:1
The relationship between
average speed, distance and time:

2. acceleration, velocity and time:2
The relationship between
acceleration, velocity and time:

3. force, mass and acceleration:3
The relationship between
force, mass and acceleration:

4. density, mass and volume:4
The relationship between
density, mass and volume:

5. work done, force and distance:5
The relationship between
work done, force and distance:

6. 6
The
principle of moments:

7. moment, force and perpendicular distance from the pivot:7
The relationship between
moment, force and perpendicular distance from the pivot:

8. momentum, mass and velocity:8
The relationship between
momentum, mass and velocity:

9. kinetic energy, mass and velocity:9
The relationship between
kinetic energy, mass and velocity:

10. gravitational potential energy, mass and height:10
The relationship between
gravitational potential energy, mass and height:

11. The relationship between11
The relationship between
mass, weight and g:

12. pressure, force and area:12
The relationship between
pressure, force and area:

13. pressure difference, height, density and g:13
The relationship between
pressure difference, height, density and g:

14. charge, current and time:14
The relationship between
charge, current and time:

15. voltage, current and resistance:15
The relationship between
voltage, current and resistance:

16. electrical power, voltage and current:16
The relationship between
electrical power, voltage and current:

17. total resistance in a series circuit:17
The relationship for
total resistance in a series circuit:

18. total resistance in a parallel circuit:18
The relationship for
total resistance in a parallel circuit:

19. wave speed, frequency and wavelength:19
The relationship between
wave speed, frequency and wavelength:

20. voltage and turns in a transformer:20
The relationship between
voltage and turns in a transformer:

21. input and output power in a transformer:21
The relationship between
input and output power in a transformer:

22. refractive index, angle of incidence and angle of refraction:22
The relationship between
refractive index, angle of incidence and angle of
refraction:

23. refractive index and critical angle:23
The relationship between
refractive index and critical angle:

24. distance d (m)
time t (s)
average speed s/v (m/s) =

25. change in velocity v – u (m/s) time taken t (s)
acceleration a (m/s2) =

26. force F (N) = mass m (kg) × acceleration a (m/s2)

27. mass m (kg) volume V (m3)
density ρ (kg/m3) =

28. work done W (J) = force F (N) × distance d (m)
(Nm)
moved in direction of force

29. anti-clockwise moments M (Nm) = clockwise moments M (Nm)

30. moment M (Nm) = force F (N) × distance d (m)
perpendicular from the pivot

31. momentum p (kg m/s) = mass m (kg) × velocity v (m/s)

32. kinetic energy K.E. (J) = × mass m (kg) × velocity v2 (m/s)1 2
kinetic energy K.E. (J) = × mass m (kg) × velocity v2 (m/s)

33. gravitational potential energy G. P. E
gravitational potential energy G.P.E. (J) = mass m (kg) × g (m/s2) × height h (m)

34. weight w (N) = mass m (kg) × g (m/s2)

35. force F (N) area A (m2)
pressure P (Pa) =
(N/m2)

36. pressure difference p (Pa) = height h (m) × density ρ (kg/m3) × g (m/s2)

37. charge Q (C) = current I (A) × time t (s)

38. voltage V (V) = current I (A) × resistance R (Ω)

39. electrical power P (W) = voltage V (V) × current I (A)

40. total resistance RT (Ω) = R1 (Ω) + R2 (Ω) + R3 (Ω) + …. + Rn (Ω)

41. 1 1 1 1 1 = + +
+ …. +
RT (Ω)
R1 (Ω)
R2 (Ω)
R3 (Ω)
Rn (Ω)

42. wave speed v (m/s) = frequency f (Hz) × wavelength λ

43. = input (primary) voltage VP (V) primary turns nP
output (secondary) voltage VS (V)
secondary turns nS

44. input power VPIP (W) = output power VSIS (W)

45. sin i angle of incidence sin r angle of refraction
refractive index n =

46. 1 n refractive index
sin c critical angle =