KS3 Science · Physics
Electricity
Nine short lessons. Look at the picture, learn three things, then play.
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Puzzles
These two are for the whole topic. Each lesson has a word search and a crossword of its own as well, at the top of its page.
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Key words
Current A flow of electric charge
Electron A tiny particle with a negative charge
Ampere The unit of current
Ammeter Measures current
Series circuit A circuit with only one loop
Parallel circuit A circuit with more than one branch
Potential difference The push that makes charge flow
Volt The unit of potential difference
Voltmeter Measures potential difference
Resistance How hard it is for current to flow
Ohm The unit of resistance
Conductor Lets current flow through it easily
Insulator Does not let current flow through it easily
Cell Pushes charge around a circuit
Battery Two or more cells joined together
Static electricity Charge that builds up on an object
Electric field The space where a charged object feels a force