Energy - The ability of an object to do work - having more of this allows the object to do more work, Joules - Unit of energy, Gravitational Potential Energy - Stored energy an object has because of its height above the ground., Ep - Symbol for gravitational potential energy, Kinetic Energy - The energy an object has because it is moving., Ek - Symbol for kinetic energy, Heat Energy - Energy that causes a change in temperature, linked to the movement of atoms (hot atoms vibrate/move faster), Chemical Potential Energy - Energy stored in chemical bonds, released in reactions (e.g. food, fuel, batteries)., Light Energy - Energy carried by light waves, allows us to see., Conservation of Energy - Energy cannot be created or destroyed, only transferred or changed into other forms., Energy Transformation - When energy changes from one type into another (e.g. chemical energy in food → kinetic energy when running)., Ep = mgh - Equation for finding gravitational potential energy from mass, gravity, and height, g - Strength of gravity (=10 N/Kg on Earth), h - Height of an object above the ground measured in metres, Ek = 1/2 mV2 - Equation for finding kinetic energy from mass and velocity, V - Velocity (speed) measured in m/s,

Y11 Mechanics - Energy

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