Daily Practice · GCSE Science

Daily Practice - GCSE Science

Biology, chemistry and physics recall, definition and calculation, drawn from every strand.

19th October 2020

5 questions · GCSE · 584 questions in this band

1
Physics Required Practicals and Uncertainties
Readings have a mean of 20.0 cm and a range of 1.0 cm. Calculate the percentage uncertainty.
2
Energy
A motor is supplied with 800 J of energy and wastes 240 J as heat. Calculate its efficiency as a percentage.
3
Energy Stores, Transfers and Calculations
Name four energy stores.
4
Efficiency, Power and Energy Resources
Why can no device be 100 percent efficient?
5
Electricity
A resistor of resistance 15 ohm is connected to a 6.0 V supply. Calculate the current flowing through it. Use V = I x R.

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