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Molly-Kate Johnson

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aluminum

plastic hanger

three dvds

a piece of wood

mousetrap

steel

embroidery floss

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Momentum is defined as the quantity of motion of a moving body, measured as a product of its mass and velocity

As more force is added the more energy the car as which means the more velocity the car will have. Therefore the momentum increases.

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Impulse is defined as a force acting briefly on a body and producing a finite change of momentum.

The brief force in this case is the string pulling on the mousetrap lever. This cause the car to move.

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When the car begins, when no string is wound, the total potential and kinetic energy is zero.

After the mousetrap is wound the elastic potential increased, meaning when the mousetrap car was wound, it served as a spring, so when one releases the force compressing the mousetrap, the mousetrap snaps back into it's original state.

As I let go of the mousetrap, two energy transformations occur. First, potential energy converts into kinetic energy as the car gains speed because kinetic energy increases when the velocity is increased. At the same time, the kinetic and potential energy, due to friction, are converted into heat, which is why the car will eventually come to a complete stop. When the car is in a complete stop, all of the energy has converted from potential and kinetic into heat.

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Newton's Three Laws and How They are Applied

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Newton's Three Laws and How They are Applied

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I. An object in motion will stay in motion and on object at rest will stay at rest unless acted upon by an outside force.

The lever, my hanger, snaps back, that is the force, which propels the car forward.

II. Acceleration of an object is directly proportional to the net force and inversely proportional to its mass.

The heavier the car is the slower its acceleration would be.

III. For every action there is an equal and opposite reaction.

The action is the mousetrap snapping. The reaction is the trap hitting the wood therefore stopping it.