Comprehension and additional task exercises pages 176 and 179 from Next Page Science KS3 Complete. Accompanying PowerPoint and word searches available for** free** from the website.
This exercise covers:
• Why electricity is so useful
• The requirement of a complete circuit with an illustration of ‘what is happening’
• Definition of voltage, current and resistance with a resistance analogy
• The relationship between voltage, current and resistance
• An example calculation highlighting the intuitive inverse relationship between current and resistance
• Example circuit symbols
• The four facts about series circuits operation explained step-by-step
• An exercise calculating resistances, voltages and currents
• Amazing WHAT? facts
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