Daily Practice · GCSE Science

Daily Practice - GCSE Science

1st September 1994

5 questions · GCSE · 584 questions in this band

1
Physics Equations: Recall, Rearrangement and Application
Calculate the gravitational potential energy gained by a 60 kg person climbing 5 m. (g = 9.8 N/kg)
2
Physics Required Practicals and Uncertainties
How is the uncertainty in a set of repeated readings usually estimated?
3
Energy
A motor is supplied with 800 J of energy and wastes 240 J as heat. Calculate its efficiency as a percentage.
4
Energy Stores, Transfers and Calculations
What happens to the energy described as 'wasted' in a transfer?
5
Efficiency, Power and Energy Resources
Define power and give its unit.

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