Physics Vocab and Equations Flashcards
Name how you calculate weight
Weight = Mass x 10
Name the equation for calculating Newtons 2nd Law
Force = Mass x Acceleration
What is the equation for momentum
Momentum = mass x velocity
Name the change in momentum equation
Momentum = Force x time taken
Name the equation for moments
Moment = force x perpendicular distance from the pivot
Name the orbital speed equation
(2 x orbital radius x Pythagoras)/ orbital speed = time period
What is the equation for power
Power = current x voltage
What is the equation for energy transferred
Energy transferred = current x voltage x time
Name the equation for voltage
Voltage = current x resistance
What is the equation for charge
Charge = current x time
What is the equation to wave speed
Wave speed = frequency x wavelength
Angle of refraction equation is…
N = Sin i / Sin r
Equation of critical angle and refractive index
Sin C = 1 / n
Name the efficiency equation
Useful energy output / total energy output x 100 = efficiency
What is the equation for work done
Work done = force x distance moved
What is the gravitational potential energy equation
Gravitational potential energy = mass x 10 x height
Name the equation for kinetic energy
1/2 x mass x speed (squared) = 1/2 mv (squared)
Name the equation for power
Power = work done / time taken
What is then equation for density
Density = mass / volume
What is equation for pressure
Pressure = force/ area
What is the equation for pressure difference
Pressure difference = height x density x 10
