2. Law of Conservation of Energy is the law in which energy can not be created nor destroyed, energy can only be transferred and stored in or through objects.
3. Ei = Ef
KEbefore + PEbefore = KEafter + PEafter
GPEi + SPEi + KEi = GPEf + SPEf + KEf
4. SI Units is Joule
American Units is Calories, BTUs,
In this video Conservation of Energy is shown by using Newton’s Cradle. The guy in the video demonstrates how energy is transferred through the balls and stays within those. As an example, he used one ball to hit the rest and one ball was bumped out the other side ; he used two balls to hit the rest and two balls bumped out the other side, and so on. The energy doesn’t go anywhere beside the objects.
6. A girl, 50 kg, is on a 7 meter building. She decides to jump into huge net below. What will be her final velocity when she hits the net?
7.
First and for most, the total energy always stayed the same. For the first screenshot, when he is at the top, the skater has the highest potential energy he will ever have in that loop.
For the second screenshot, when he is at the top of the loop, he has medium potential energy and the lowest kinetic energy he will have.
For the third screenshot, when he is at the bottom of the loop, he has the highest kinetic energy he will have.
8.