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Here r some important formulas for physics paper :
- Density = mass/volume
- Speed = distance/time
- Acceleration = Change in velocity (v-u)/time
- Force = mass x acceleration
- Weight = mass x g (10 m/s2) OR (10 N/kg)
- Moment of force = force x perpendicular distance from a point
- Load = spring constant x extension
- Pressure = force/area
- Pressure in liquid = density x g x height
- Compressing gases ( Pressure 1 x Volume 1 = Pressure 2 x Volume 2 )
- Work Done = Force x Distance moved
- Gravitational Potential Energy = mass x g x height
- Kinetic energy = 1/2 x mass x velocity2
- Energy transferred 1 = mass x specific heat capacity x temperature change
- Energy transferred 2 = mass x specific latent heat
- Power = work done/time = energy transferred/time
- Efficiency = useful work done/total energy input
- Waves = frequency x wavelength
- Frequency = 1/period (time)
- Refractive index = sin of incidence angle/ sine of refracted angle
- Total Internal reflection (sin of critical angle) = 1/reflective index
- Charge = current x time
- Resistance = Voltage / current
- Voltage = Current x Resistance
- Resistors in series = Resistor 1 + Resistor 2
- Resistors in parallel = 1/Resistor 1 + 1/Resistor 2
- Electrical Power = Voltage x current
- Electrical energy = Power x time OR Voltage x current x time
- Transformers = Output Voltage 2/Input Voltage 1 = Output turns 2/Input turns 1
- Current of Transformers = Current 1 x Voltage 1 = Current 2 x Voltage 2
- This r not all the formulas in physics
- This formulas mentioned above r frequently asked in exams papers
- " x " means multiply by
