OCR GCSE Physics A: Gateway Science (J249) · OCR J249
P7 Energy
Written & reviewed by James Millett — Biology (Imperial College London), PGCE Science (University of Cambridge).
Practice questions on Energy
- A factory uses a large electric motor to drive a conveyor belt. The motor has a power rati… (4 marks, Explain)
- A homeowner installs cavity wall insulation in their house. Explain how cavity wall insula… (4 marks, Explain)
- A cyclist freewheels down a hill and then gradually comes to a stop on a flat road. Descri… (4 marks, Describe)
- A student uses an electric hair dryer to dry their hair. The hair dryer produces warm movi… (4 marks, Explain)
- A student pushes a heavy box along a rough floor at a constant speed. Explain why the stud… (4 marks, Explain)