Energy and pressure Flashcards
work done, efficiency, transfers, stores, power, pressure
seven energy stores
- kinetic
- chemical
- electrostatic
- elastic
- gravitational potential
- nuclear
- thermal
anything moving has energy in which store
kinetic
anything that would fall if wasn’t supported would have energy in which store
gravitational potential
anything that can release energy by a chemical reaction ( like food and fuels) would have energy stored in
chemical
anything stretched like springs or rubber bands would have energy stored in
elastic
in nuclear reactions, atomic nuclei release energy. which energy store would this be
nuclear
2 charges that attract or repel each other would have energy stored in
electrostatic
what object would have internal or thermal energy store
any object, the hotter it is, the more energy it has in that store
the 4 main energy transfers
- mechanical
- by heating
- by waves
- electrically
electrical energy transfer
work is done by an electric current flowing
mechanical energy transfer
work is done by a force acting on an object ( pushing, pulling, stretching)
waves energy transfer
energy being transferred by waves of light or sound
heating energy transfer
energy being transferred from a hotter object to a colder object
what is the principle of conservation of energy
in a reaction, energy cannot be created nor destroyed, it can only be stored, transferred or dissipated
energy is measured in
joules
