The Forces of Science

By Bruce Mang

Newton's Three Laws

We all know the great physicist and mathematician Isaac Newton. We also know that he made three great laws. However, most people tend to not notice or reason with these laws in everyday life. We will talk about them today and how they have been applied to our world.

The First Law: Inertia

Inertia is basically the mass of an object. Every object will remain in it's state of motion unless another force is applied to it. We see this in car breaking, when the breaks create friction on the wheels, it stops the car. However, the car has inertia, and because it is so big, it takes a lot of force to stop it. Not enough? You have yourself a car crash.
Big image

The Second Law: Force

Acceleration is often misinterpreted, people think of it as speeding up, but any change of speed is acceleration. Now, we know that force equals mass times acceleration. an example of this is; if you multiply the mass of a shopping cart with the speed a person is pushing it, you will find how much force is being applied on it.
Big image

The Third Law: Action and Reaction

I'm sure we are all familiar or have all heard this third law sometime in life. For every action, there is an equal and opposite reaction. A rocket only launches because the ground and air are pushing up just as hard as the engines, or else, with nothing to push on, the rocket could not move.
Big image