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The force you exert on pulling back a rubber band, which will in turn catapult an empty margarine tub, affect the distance which the margarine tub will travel.

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  • Essay length: 1508 words
  • Submitted: 14/10/2003
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AS and A Level Mechanics & Radioactivity

The first 200 words of this essay...

Margarine Tub Investigation

Aim

The target of this investigation is to find out how the force you exert on pulling back a rubber band, which will in turn catapult an empty margarine tub, affect the distance which the margarine tub will travel. We will not be changing any of the other factors of the experiment, only the force and extension of the rubber band, for that is the variable which we are investigating.

Prediction

I predict that the more force you exert, the further the margarine tub will travel, however, I think that the force and distance relationship will not increase evenly, instead it would first increase rapidly, then the increase will be less significant, and then rise slightly.

Scientific reason for prediction

Rubber is not a material which obeys Hooke's law and its extension doesn't increase uniformly. Some elastic materials are intended to absorb energy. The greater the force that is applied, more the rubber band is extended. The force in the rubber band is stored as potential energy which is reverted into kinetic energy once I have let go of it, this energy is transferred into the margarine tub as kinetic

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