Newtons Laws Of Motion

The three laws of force and motion

Newtons first law (Inertia)

"An object in motion will stay in motion, and an object at rest will stay at rest."

Example: The head of a hammer can be tightened onto the wooden handle by banging the bottom of the handle against a hard surface.

Newtons second law

"The rate of change of momentum is proportional to the imposed force and goes in the direction of the force"

Example: It is easier for a strong adult to push a full shopping cart than it is for a baby to push the same cart.

Newtons third law

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

This states that for everything you do, it has a reaction, even if you wiggle a table with a glass of water on it, the water will fall over causing all of the water to pour out of the glass onto the floor.

Example: Person pushes off of the ground on their skateboard, the skateboard quickly moves forward, because of the force used from the person pushing off of the ground.