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2024 · M/J · 5054/12 | Q31

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CIE-5054-2024-MJ-p12 · Question 31

You may use a calculator. Take the weight of 1.0 kg to be 9.8 N (acceleration of free fall = 9.8 m/s²).
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31 How many kilowatt-hours of energy are used by a 1000W heater connected to a 230V supply for 30 minutes? A 0.30kWh B 0.50kWh C 30kWh D 120kWh

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5054/12/M/J/24Cambridge O Level Physics 5054 · May/June 2024 · Paper 1 variant 2 · Question 31