Newtons laws

First Law of Motion

An object at rest stays at rest and an object in motion stays in motion at a constant velocity unless acted upon by a net external force.

Second Law of Motion

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F=ma).

Third Law of Motion

For every action, there is an equal and opposite reaction.

Inertia

The tendency of an object to resist changes in its state of motion.

Net Force

The vector sum of all the forces acting on an object.

Acceleration

The rate of change of velocity of an object with respect to time.

Mass vs Weight

Mass is a measure of the amount of matter in an object; weight is the force of gravity acting on that mass.

Friction

A force that opposes the motion of an object, acting parallel to the surfaces in contact.

Gravitational Force

The attractive force between two masses, proportional to their masses and inversely proportional to the square of the distance between their centers.

Force

A push or pull on an object, which can cause it to accelerate.

Balanced

Forces that are equal in size but opposite in direction, resulting in a net force of zero and no change in motion.

Unbalanced Force

A force that results in a net force greater than zero, causing a change in motion.

Force Equation

F = ma, where F is force, m is mass, and a is acceleration.

Mass equation

Force is divided by acceleration M=F divided by A

Acceleration equation

Divided force by mass A=F divided by M