Year 8 Electricity

2. metals are good examples of these. they allow charged particles to flow freely
3. A device that measures voltage.
5. A device that measures electric current
6. A complete loop of conducting components that electricity flows around
8. Component that allows a circuit to be open or closed
9. A branched circuit – it has components connected on separate branches
10. the overall charge on an atom
11. A circuit without any branches – it has components connected in a row
12. A component that makes it difficult for electricity to flow and so reduces the current
15. when something has more protons than electrons, we say it is
16. the charge on an electron
18. electrical weather phenomenon
20. The amount of ‘push’ that a cell gives a circuit, measured in volts

1. a scenario used by scientists to develop theories and explain scientific ideas
2. The flow of electricity, measured in amps (A).
4. component which turns when a current flows through it
7. plastics are examples of these. The opposite of conductors.
11. the electricity that can be created by friction
13. Tiny particles that flow around electrical circuits
14. items with the same charge do this to each other
17. two plastic rods with opposite charges would do this
19. more than one of these makes up a battery