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Yr9 Energy
Part 1 definitions for energy
Term | Definition |
---|---|
Active energy | Different forms of energy present when particles, waves or objects move |
Light energy | Energy given out by hot objects, certain chemicals and some living organisms |
Heat energy | Energy which causes particles in a substance to move faster and more freely |
Electrical energy | Energy of electrons moving in a conductor |
Sound energy | Energy which travels from vibrating objects through a medium |
Kinetic energy | Energy of a moving object |
Potential energy | Any form of stored energy |
Chemical potential energy | Energy stored in fuel and food |
Magnetic potential energy | Energy stored in an iron object when moves away from a magnet |
Gravitational potential energy | Energy stored in objects that are above the ground/ have height |
Nuclear potential energy | Energy stored in the nucleus of an atom |
Elastic potential energy | Energy stored in springs, elastic, rubber bands when they are compressed or stretched |
Energy transfer | When energy moves from one object to another |
Energy transformation | When energy changes from one form to another |
Law of Conservation of Energy | Energy cannot be destroyed or created but can only change from one form to another. The total amount of energy stays the same. |
Efficiency | Percentage of useful energy generated by an appliance out of the energy consumed |