Physics Equations Flashcards
What is the equation for weight?
weight = mass * gravitational field strength
What is the equation for work done?
Work done = force * distance
What is the equation for force applied to a spring?
Spring constant * extension
What is the equation for moment?
Moment of a force = force * distance
What is the equation for pressure?
Pressure = Force/area
What is the equation for distance?
Distance = speed * time
What is the equation for acceleration?
Change in velocity / time taken
What is the equation for resultant force?
Resultant force = mass * acceleration
What is the equation for momentum?
Mass * velocity
What is the equation for kinetic energy?
Kinetic energy = 0.5 * mass * speed^2
What is the equation for gravitational potential energy?
GPE = mass * grav field strength * height
What is the equation linking power, time and energy transferred?
Power = energy transferred / time
What is the equation linking work done, time and power?
Power = work done /time
What is the equation for wave speed?
Wave speed = frequency * wavelength
What is the equation for charge flow?
Charge flow = current * time
What is the equation for efficiency?
(Useful output energy transfer / total input energy transfer) * 100
OR
(useful power output / total power input) *100
What is the equation linking current, potential difference and resistance?
Potential difference = current * resistance (V=IR)
What is the equation linking power, current and potential difference?
Power = potential difference * current
What is the equation linking resistance, current and power?
Power = current^2 * resistance
What is the equation for density?
Density = mass / volume
What is the equation linking charge flow, potential difference and energy transferred?
Energy transferred = charge flow * potential difference
What is the equation linking energy transferred, time and power
Energy transferred = power * time
