Newton's Laws of Motion!

Hannah, Lynn, Katelin

We represented Newton's second law by using the mathematical equation, F = ma, to find the force of the object.

We had to, first, weigh the object and then convert it to kilograms in order to find the mass.

296g = .296 kg

After finding the mass we used the equation to find the force of the object.

F = ma
F = .296 (10)
F -= 2.95 N

We used a spring scale to check our work.

The spring scale hit at about three, meaning we were pretty close in our calculations.

Next we used a battery charged car and a spring scale to measure the force of the car when it has another force acting up on it.

The scale moved between 3 and 3.5. Since the car has acceleration and is using force to move forward, the spring in the scale also moves back and forth because it is also exerting force on the object. When the car uses force to pull the spring to 3.5 that is showing more force and more acceleration.

We then proved Newton's laws of motion using marbles.

Newton's First Law: An object at rest will stay at rest unless acted about by an outside force.

The marbles stay at rest, unless acted on by an outside force, in this case, another marble.

Newton's Second Law: With more mass an object will have less acceleration or force.

This is an example of two objects of different masses in free fall. Even though one marble has more mass than the other marble, they should hit the ground at the same time because the acceleration of an object in free fall is 10 m/s.

Newton's third law: When an object exerts a force on another object the force is equal.

Since the larger marble has a bigger mass it effects the velocity of the smaller object, making it shoot in the opposite direction.

Lastly we proved Newton's laws using Newton's Cradle.

Newton's first law:

An object at rest will stay at rest...

Unless acted upon by an outside force.

Newton's Second Law: With more force there is more acceleration.

With the force of the first hit, it makes the other side shoot out, showing the acceleration of the object by using force from the first hit.

Newton's Third Law: For every action, there is an equal and opposite reaction

This shows the action of the first ball hitting the others and making the other end shoot out. They hit back and forth showing the equal and opposite reaction on each side. We slowed the video down so we could see the equal force on each object. We know they have equal force because the first ball goes out the same distance as the opposite ball.