Across
- 2. / connected series of materials along which an electric current can flow.
- 5. / a device that can provide an electric current.
- 6. / central part of an atom, made up of protons and neutrons; roundish structure inside a cell that acts as the control centre for the cell.
- 9. / having the same number of protons and electrons.
- 10. / a build-up of charge in one place.
- 11. / having more electrons than protons (more negative charges than positive charges).
- 13. / diagram using symbols to show the parts of an electric circuit.
- 16. / particles with no electrical charge that are found in the nucleus of an atom.
Down
- 1. / negatively charged, very light particles in an atom. Electrons move around the nucleus of the atom.
- 3. / having more protons than electrons (more positive charges than negative charges).
- 4. / coil of wire made from a metal that glows brightly when it gets hot. The filaments in light globes heat up when electricity flows through them.
- 7. / device that opens and closes the conducting path through which a current flows.
- 8. / a measure of the number of electrons flowing through a circuit every second. An increase in current means an increase in the rate of flow of electrons in the circuit.
- 12. / device that uses electrical energy and converts it into other forms of energy.
- 14. / measure of the electrical energy required for an electric current to pass through an object. The energy is changed to heat.
- 15. / positively charged particles found in the nucleus of an atom.