Daily Practice

GCSE Science

17th January 1986

5 questions · GCSE · 584 questions in this band

1
Climate Change and Atmospheric Pollutants
Explain why burning a fuel can produce nitrogen oxides even if the fuel itself contains no nitrogen.
2
Physics Equations: Recall, Rearrangement and Application
A device transfers 4500 J in 90 s. Calculate its power.
3
Physics Required Practicals and Uncertainties
Give one reason for taking the gradient from the line of best fit rather than from two data points.
4
Energy
A motor is supplied with 800 J of energy and wastes 240 J as heat. Calculate its efficiency as a percentage.
5
Energy Stores, Transfers and Calculations
By what factor does kinetic energy increase if speed is doubled?

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