Topic 2 Flashcards
Displacement
Distance travelled in a particular direction
Velocity
Rate of change of displacement
Speed
Rate of change of distance
Acceleration
Rate of change of velocity
Newton’s First Law of Motion
An object at rest will remain at rest and an object in motion will remain in constant motion unless acted upon by an unbalanced force
Newton’s Second Law of Motion
Acceleration is proportional to the net force and inversely proportional to mass
Newton’s Third Law of Motion
When two bodies A and B interact, the force A exerts on B is equal and opposite to the force B exerts on A
Law of Conservation of Linear Momentum
The total momentum of an isolated system remains constant
Work done
Product of force of an object and the displacement of an object in the direction of the force
Principle of Conservation of Energy
Energy can neither be created or destroyed, it can only be transformed from one form to another
Power
The rate at which work is done or energy is transferred
Efficiency
The ratio of useful energy output to the total energy input
