Across
- 5. The flow of electrical charge, measured in amps (A). Represented in an equation by the letter I.
- 8. The area around a magnet, electric current or moving charged particle where there is a magnetic force.
- 10. flow A measure of the quantity of charged particles moving in a circuit, measured in coulombs (C). Represented by the letter Q.
- 11. A measure of the work done or the energy transferred to a component by each coulomb of charge that passes through it, measured in volts (V). Represented by the letter V.
- 12. A motor that takes energy from a direct current and transfers it to a kinetic store.
- 14. The transfer of electrical charge (or thermal energy) through a substance.
- 15. A device containing a magnetic needle on a pivot that indicates North when held on the Earth's surface.
- 16. The unit for potential difference
- 18. A circuit in which the current divides into two or more paths before recombining to complete the circuit.
- 21. The degree to which a component opposes the flow of electrical charge, measured in ohms (Ω). Represented in an equation by the letter R.
- 22. A force that causes objects to move away from each other.
- 23. A diagram that shows the direction and shape of a magnetic field.
Down
- 1. The unit for current.
- 2. A force that causes objects to move towards each other.
- 3. A particle with a relative charge of -1 and a very small relative mass. It orbits the nucleus of an atom in energy levels (shells).
- 4. Stationary electrical charge stored on an insulating material when electrons are transferred between objects.
- 6. A region at each end of a magnet where the magnetic field is strongest.
- 7. A coil of wire carrying a current with an iron core.
- 9. An individual part of an electric circuit.
- 13. The area around a charged object where another charged object experiences a non-contact force.
- 17. The unit for resistance.
- 19. A circuit in which the current follows one path.
- 20. A material or object that blocks the flow of electrical charge or thermal energy.