PE Unit 3 Formulas Flashcards
Formula for weight
Units
Weight = mass x gravity (units can be kg or g or others)
Formula for Force (Newton’s second law)
Force = Mass x Acceleration (N)
Units = Newtons
Formula for speed
Give units
Speed = Distance / Time
Unit is usually m/s or could be km/h
Formula for velocity
Give units
Velocity = Displacement / time
Unit is usually m/s or km/h with direction
Formula for Momentum
Give units
Momentum = Mass x Velocity
Units is kg m/s
Formula for Impulse
Give units
Impulse = Force x Time
Idk units yet
Formula for Angular Speed?
Give units
Angular Speed = Angular distance / Time taken
Units is degrees/s - will double check
Formula for Angular Velocity?
Give units
Angular velocity = Angular displacement / Time taken
Units is degrees/s with direction - will double check
Formula for Angular Momentum?
Angular Momentum = Moment of Inertia x Angular velocity
Formula for Moment of Inertia
Moment of Inertia = Mass x Radius squared
Formula for Torque
Torque = Force x Lever Arm
Formula for Linear Motion
Linear Motion = Angular velocity x Radius of rotation
