| Front | What happens if you transfer energy by applying a force ? |
| Back | You do work,doing work on a gas increases it's internal energy which can increase it's temperature |
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| Front | How can work be done? |
| Back | Work can be done when current flows (work is done against resistance in a circuit or by a force moving an object) |
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| Front | Explain what alternating currents are |
| Back | In ac supplies current is constantly changing direction alternating currents are produced by alternating voltages in which positive and negative ends keep on alternating |
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