Newtons Laws of Motion and Energy

Forces

any action that can change or cause motion

Inertia

the property of an object that resists change of motion

Mass

the amount of matter in an object

Weight

the force of gravity pulling on mass

Mechanical Advantage

how much a machine helps

Potential Energy

energy of position due to gravity

Friction

a force that opposes moving objects and occurs any time objects touch

Kinetic Energy

energy of motion

Work

energy transferred by forces

Power

how fast you do work or transfer energy

Law of Conservation of Energy

energy is never created nor destroyed, just transformed into other forms of energy

Efficiency

tells you how much energy was retained in an energy transfer and how much was lost as friction

Newtons 1st Law

an object at rest will stay at rest unless acted on by an unbalanced force.

Newtons 2nd Law

the acceleration of an object is proportional to the force acting on it and inversely prop. to its mass

Newtons 3rd Law

equal and opposite forces whenever one object exerts a force on another object, the 2nd exert an equal and opp. force on the first