newton's first law (law of inertia)
an object at rest will remain at rest and a moving object will continue with a constant velocity unless an external unbalanced force acts on it
inertia
the tendency of an object to resist changes in its velocity
newton's second law
an object will only accelerate if there is a net or unbalanced force acting on it
law of conservation of energy
energy can be converted from one form to another but cannot be created nor destroyed
power
the rate of doing work
energy
the capacity to do work
work done
the energy when a force acting on an object causes a displacement
newton's third law
to every action there is an equal and opposite reaction