# Newton's 100

## A Video We Got Our Inspiration From

Propeller car.m4v

## Newton's 1st Law

Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it. Also known as Inertia.

My car shows this when my propeller is under a certain amount of force. The force is caused by a rubber band that's wrapped around a hook that's connected to the propeller

(As you can see to the right).

When the rubber band is twisted it has a lot of force that makes the propeller spin rapidly. Our vehicle has gone over 700 centimeters with this rubber band and propeller

## Newton's 2nd Law

The relationship between an object's mass m, its acceleration a, and the applied force F is F = ma. Acceleration and force are vectors. In this law the direction of the force vector is the same as the direction of the acceleration vector.

My vehicle displays this when my rubber band is twisted to it's limit and makes the propeller spin. When the propeller spins it makes my vehicle go forward. My vehicle is very lite, but that doesn't mean there is no mass to make it go faster. We couldn't add any weight because it wouldn't have moved.

## Newton's 3rd Law

For every action there is an equal and opposite reaction.

My vehicle shows this when we put different kinds of rubber bands on the hook and paper clip to see if it goes faster or slower. it also happens when we double up or twist our rubber bands more.

## Reflection

The first step I went through to make my vehicle to travel further and further is that we changed different rubber bands

• shapes
• sizes
• lengths
Everything!!!

The second step is that we put a washer (at the right) between the pen barrel and the propeller.