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6 gr Energy
6.8A-C
| Term | Definition |
|---|---|
| potential energy (PE) | stored energy due to position of objects or arrangement of particles; CANNOT be transferred BUT, CAN be transformed |
| kinetic energy (KE) | energy in motion; CAN be transferred & transformed |
| Gravitational PE | potential energy that depends on an object’s mass and its height above the ground |
| Elastic PE | energy stored in objects that can be stretched or compressed, such as trampolines, rubber bands and bungee cords |
| Chemical PE | energy stored in the arrangement of particles such as in food, fossil fuels, etc. |
| Law of the Conservation of Energy | energy cannot be created nor destroyed; it can only be transformed and transferred |
| total energy of a system | the sum of the potential and kinetic energies; |
| energy transformation | energy conversion; change from one form to another |
| energy transfer | energy is relocated from one system to another |
| photosynthesis | light (radiant, electromagnetic) energy → chemical energy with heat “lost” to surrounding |
| waves | disruptions that transfer energy from one place to another; do NOT transfer matter |
| transverse waves | waves where the particles in the medium move perpendicular to the direction of the energy |
| longitudinal waves | waves where the particles of the medium move in the same direction (parallel) as the energy |
| energy | currency of the universe; price paid for change |
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