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   ocr: Energy in slingshot launchers and catapults Asy you pull back the rubber band in the slingshot launcher, you are storing energy in the stretched rubber. Stored energy is known as potential energy. ENERGY STORED IN STRETCHED RUBBER Energy never disappears, it is always converted from one form into another. For example, when you release the rubber band, you are also releasing the energy stored inside it. This energy becomes the energy of movement as the ball accelerates over the landscape. Energy of movement is known as kinetic energy. ENERGI TRANSFERRED TO MOVING BALL Not all of the energy stor ...