Question
WJEC Unit 1 Physics — Higher tier
A 1500 W hairdryer is left on for 2 minutes. 60% of the input energy is transferred as useful heat.
(a) Calculate the total energy supplied. (2 marks) (b) Calculate the useful energy output. (2 marks) (c) State what happens to the wasted energy. (1 mark)
5 marks · take your time before peeking.
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Generated by TopMyGrade AI · cross-check official sources before relying on the mark-scheme phrasing.