Jihad+L

Gravity is a force pulling together all matter (which is anything you can physically touch). The more matter, the more gravity, so things that have a lot of matter such as planets and moons and stars pull more strongly. Mass is how we measure the amount of matter in something. The more massive something is, the more of a gravitational pull it exerts. We stay on the Earth because it is so much more massive than we are, and the pull from us is not strong enough to move the Earth. Also it depends on how far you are from something, so if you are on the earth the sun cannot pull you off because you're closer to the earth.

Mechanical energy associated with the motion or position of large objects, and also one of the most inclusive forms of energy. So the type of energy of that I am focusing on is Gravity. Gravity is applied in many situations, for example when you stand gravity is what keeps you from floating away into space. One useful way that the force of gravity is used to keep every living thing known to man alive. this is because without gravity there would be no atmosphere and there would be no air therefor without gravity everybody would die.







The purpose of the experiment is to prove that gravity has a effect on the bounce of the ball. the method of the experiment is to bounce a ball from different heights and see if gravity has a effect on the bounce. The results were from 1.5 m it bounced 81 cm, then from 1 m it bounced 52 cm, also from .5 m is bounced 31 cm, and from .25 m it bounced 14 cm (as in the table below). Figure 1: bounce graph
 * Height m || Bounce cm ||
 * 1.5 || 81 ||
 * 1 || 52 ||
 * .5 || 31 ||
 * .25 || 14 ||

The results are this way from the different amounts of force gravity is exerting on the ball. The gravity is exerting different amounts of force appropriate for bringing the ball towards the earth where the gravity is coming from. That experiment proves that gravity exists in two ways because the ball was dropping to the floor instead of staying the way it is and that the earth has gravity and pulls things to it with different forces instead of some other constantly pushing. This shows this because the ball falls and exerts a different force basted on position.