Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
20th November 2024
- 1Efficiency, Power and Energy Resources
Why can no device be 100 percent efficient?
- 2Electricity
Two resistors are connected in parallel across a 12 V battery. State the potential difference across each resistor.
- 3Circuits, Resistance and Components
What happens to the total resistance when a second resistor is added in parallel, and why?
- 4Mains Electricity, Power and Energy
Give the colour and function of the earth wire.
- 5Particle Model of Matter
Calculate the energy needed to melt 0.50 kg of a substance with a specific latent heat of fusion of 210000 J/kg.
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