Comprehension and additional task exercises pages 114 and 115 from Next Page Science KS3 Complete. Accompanying PowerPoint and word searches available for free from the website.
This exercise covers:
• Power ratings and what they tell us
• Using the equation energy = power x time to calculate energy used in kWh
• Examples calculations for a kettle and a TV
• An example electricity bill used to show quarterly calculations and the cost of energy consumed
• Practise converting time in minutes to hours and watts to kW
• Practise calculating energy in kWh and completion of an electricity bill
• Amazing WHAT? facts
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