IGCSE Physics Formulas

1) Density = ...

Density = .....

Mass / Volume

2)  Wave Speed = ...

Wave Speed (v) = ....

Frequency (f) X Wavelength

3) Weight = ...

Weight =

Mass X Gravity

4)  Electrical Power  = ........

                                  Current X Voltage

I X V

5) Speed = ....

Distance / Time

6)  Acceleration =

= Change in Velocity / time

(V-U) / T

7) Pressure Difference = ...

= Height X density X gravity

8) Moment of a Force = ...

= Force X Perpendicular distance from pivot.

9) Critical Angle = ...

Sin (Critical angle) = 1/refractive index

Sin C = 1/n

10) Efficiency

USEFUL ENERGY INPUT / TOTAL ENERGY OUTPUT