## Mr Amp: Current Analogy for Electric Circuits

KS3/4 children can struggle with the concepts of current and voltage, and with how to correctly connect an ammeter/voltmeter. I tried this analogy: current is like the number of children running through a corridor /sec: Mr Amp (the ammeter) stands in the corridor counting children (electrons) and timing them (this explains why the ammeter is wired in series). This can help in showing conservation of current around the circuit and explain observations in parallel vs series circuits. Also contains a slide of investigations to complement it. See also: Mrs Volt (chocolate biscuits and voltage)!

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- Jan 5, 2013
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KS3/4 children can struggle with the concepts of current and voltage, and with how to correctly connect an ammeter/voltmeter. I tried this analogy: current is like the number of children running through a corridor /sec: Mr Amp (the ammeter) stands in the corridor counting children (electrons) and timing them (this explains why the ammeter is wired in series). This can help in showing conservation of current around the circuit and explain observations in parallel vs series circuits. Also contains a slide of investigations to complement it.\n\nSee also: Mrs Volt (chocolate biscuits and voltage)!

#### Electric current and charge - complete lesson (current, Amp, charge, Coulomb, and calculations)

A complete / full / ready to go A level Physics lesson.<br />
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It contains:<br />
Notes to help the teacher.<br />
Title & lesson objectives (see below).<br />
Many Questions with FULLY WORKED OUT answers.<br />
Theory slides (minimal - not 'death by powerpoint')<br />
Homework (simple research)<br />
Video link (very cool)<br />
Assessment activity / plenary<br />
Student self assessment versus objectives activity.<br />
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Lesson objectives:<br />
* Explain what electric current is.<br />
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* Use the equation for charge.<br />
(Also covers the definition of the Amp etc etc)<br />
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Please buy this lesson and leave positive feedback.<br />
Thank you for your time<br />
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