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3 Cards in this Set
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State that energy is conserved in all energy transfers. |
law of conservation of energy states that the total energy of an isolated system cannot change—it is said to be conserved over time. |
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State that energy cannot be created or destroyed. |
Energy can be neither created nor destroyed, but can change form, for instance chemical energy can be converted to kinetic energy. |
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Describe energy transfers between gravitational, kinetic and elastic energy. |
The bouncing ball: When the ball is above the table, its gravitational potential energy (GPE) is at maximum. No kinetic energy (KE) or elastic potential energy (EPE). As the ball falls, its GPE's transferred to KE, the ball accelerates. When the ball hits the table, KE is transferred to EPE as the ball squashes. The ball regains its shape, the EPE is transferred to KE and it bounces upwards. |
