# All about Force and Motion

## All about force and motion

Force and motion has a lot of steps to it. For an example Newtons laws of motion and simple machines are a big part of force and motion. In Newtons laws of motion there is 3 laws. But in simple machines there is 6 and they are inclined plane,wedge,screw, lever,wheel & axle, pully . And today we will learn about all the facts of force and motion.

## Wedge

A wedge is a simple machine we use every day to make work easy. A wedge is an object that is thick at one end, tapered to a thin edge at the other. A wedge is good for splinting things into parts. Example- a knife is a wedge.

## Incline plane

A incline plane is a simple machine we use every day. A incline plane makes work easy.A incline plane is a flat surface with one end higher than the other. Incline plane helps people with putting stuff on a truck or just lifting something up. Example- a ramp is a incline plane.

## Wheel and axle

The wheel and axle is one of six simple machines. The wheel and axle is generally considered to be a wheel attached to an axle so that these two parts rotate together in which a force is transferred from one to the other.

Example- A car is a wheel and axle

## Screw

A screw is a tool we use to make work easy. A screw is a simple machine. A screw is a incline plane wrapped around a cylinder. If you want to screw something in you should use a screw to help you. A screw is a handymans best friend.Example- A lid of a jar is a screw.

## Lever

A lever is a simple machine. You might have not known but a sad saw is a simple machine. A lever is a straight bar that provots on or around a fullcrom.

## pully

A pully is a simple machine. A simple machine makes work easy. A wheel with a grooved rim around which a cord passes. It acts to change the direction of a force applied to the cord and is chiefly used to raise heavy weights.

## Newton's first law/Law of inertia

Objects in motion will stay in motion. Objects at rest will stay at rest unless acted on an outside force. Example- If you have a book on a desk it won't move unless you move it.

## Newtons 2nd law of motion

F=ma force=mass x acceleration

The greater the force, the greater the speed.

## Newtons 3rd law of motion

For every action, there's an equal and opposite reaction.
Simple Machine: Wheel & Axle