transfer of energy

• potential energy means energy that is stored due to the objects circumstances, such as height or mass
• thermal energy means heat energy
• kinetic energy: energy an object has due to motion (e.g walking,metor, throwing a ball)
• chemical potential: the energy stored in a chemical bonds of a substance
• gravitational potential:potential energy related to an objects position in a gravitational field
• elastic potential:the energy of an object that is stretched or compressed
• sound:Sound energy is produced when an object vibrates, which results in noise
• electrical energy is the energy stored in the electrons in an electrical circuit
• nuclear energy: a name used to describe energy released by the splitting of atoms.
• law of conservation of energy: energy cannot be created or destroyed, only transferred from one form to another
• energy can be usefully transferred, stored or dissipated
• useful energy output: energy that the device gives out
• wasted energy: energy that was not usefully tranferred to the final product, or dissipated as heat
• total energy input: energy you give in
• the efficiency is always less than 100% because some energy is wasted
• efficiency = useful energy output
• when any subtance is heated the particles vibrate faster and move closer together
• in solids they move around in fixed positions, this vibration gets faster when the solid is heated
• liquids also vibrate but not in fixed positions
• when liquid vibrates faster the the faster they move around
• as thermal energy increases the particles take up more space, this applies for all the states of matter
• conservation is when the quantity of energy stays the same
• thermal energy is travelled the quickest by radiation