18th Mar '26

P2.5 Keywords

P231
  1. Current (7) - P2:7
    • An electric current is a flow of electric charge.
  2. Magnetic field (4) - P2:4
    • a region around a magnetic material or a moving electric charge within which the force of magnetism acts.
  3. Conductor (2) - P2:2
    • A material the can conduct electricity or thermal energy.
  4. Transformer (2) - P2:2
    • A transformer is an electrical device that changes the voltage of an AC supply.
  5. Power (2) - P2:2
    • Power is a measure of how quickly energy is transferred. The unit of power is the watt (W).
  6. Repulsion (1) - P2:1
  7. primary coil (1) - P2:1
  8. (1) - P2:1
  9. Induced (1) - P2:1
  10. Magnetic (1) - P2:1
  11. Attraction (1) - P2:1
  12. Repel (1) - P2:1
  13. Force (1) - P2:1
  14. Non-contact (1) - P2:1
  15. Attract (1) - P2:1
  16. Permanent magnet (1) - P2:1
  17. Magnet (1) - P2:1
    • A material made out of either iron, steel or cobalt that is polarised and has a north and south pole.
  18. Voltage (1) - P2:1
    • A potential difference, also called voltage, across an electrical component is needed to make a current flow through it. Cells or batteries often provide the potential difference needed.
  19. Electric motor (1) - P2:1
    • Electric motors transfer electrical energy into kinetic energy, using magnets and coils of wire. There is a relationship between electrical power, voltage and current (power = voltage × current).
  20. Sound Waves (1) - P2:1
    • Longitudinal waves that transfer energy as vibrations in particles.
  21. Loudspeaker (1) - P2:1
    • Loudspeakers transform electrical signals into sound. Inside a loudspeaker there is a permanent magnet. An electromagnet attached to the speaker cone is inside the magnet field of the permanent magnet.
  22. Poles (1) - P2:1
    • Magnet have a north and south pole.
  23. Step down transformers (1) - P2:1
    • Step down current, step down voltage.
  24. Step Up transformers (1) - P2:1
    • Step up voltage, step down current.
  25. Magnetic Force (1) - P2:1
    • The force that arises due to the motion of charged particle within the magnetic field is known as the magnetic force. It is an outcome of the electromagnetic force.
  26. motor effect (1) - P2:1
    • The motor effect is the term used when a current-carrying wire in the presence of a magnetic field experiences a force.
  27. Motor effect (1) - P2:1
    • The motor effect is the term used when a current-carrying wire in the presence of a magnetic field experiences a force.
  28. Polarity (1) - P2:1
    • The state of being a north pole or south pole; the magnetic equivalent of electric charge
  29. Solenoid (1) - P2:1
    • a coil of wire, usually cylindrical, in which a magnetic field is set up by passing a current through it
  30. permanent magnet (1) - P2:1
    • a magnet that retains its magnetic properties in the absence of an inducing field or current.
  31. Field (1) - P2:1
    • a region around a magnetic material or a moving electric charge within which the force of magnetism acts.
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