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Physics - Coggle Diagram
Physics
Energy
Types of energy stores
Thermal: The total kinetic and potential energy of the particles in an object
Chemical: The energy stored in chemical bonds
Electrostatic: The energy stored when repelling charges are close and attracting charges are apart
Gravitational potential: The energy of an object at height
Magnetic: The energy stores when repelling poles are close and attracting pole are apart
Nuclear: The energy stored in the nucleus of an atom
Elastic potential: The energy stored when an object is stretched or sqaushed
Kinetic: The energy of a moving object
Energy transfers
Electrical work: charges moving due to a potential difference
Heating: Due to temperature difference caused electrically or by chemical reaction
Mechanical work: a force moving an object through a distance
Radiation: Energy transferred as a wave
Energy dissipation: wasted energy
The conservation of energy: Energy can be transferred usefully, stored or dissipated, but it cannot be created or destroyed
Calculations
Elastic potential energy = 1/2 x spring constant x extension2
Gravitational potential energy = mass x gravitational field strength x height
kinetic energy = 1/2 x mass x speed2
Electricity
Electrical symbols
Charge and current
Current: charge= current x time
Charge: Electrons are negatively charged particles and the transfer energy through wires as electricity. Charge is measured in coulombs (C)
Potential difference : a measure of energy transferred between two points in a circuit. Potential difference = energy/charge
Resistance: Potential difference= current x resistance
