Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
20th October 2020
- 1Circuits, Resistance and Components
What happens to the total resistance when a second resistor is added in parallel, and why?
- 2Mains Electricity, Power and Energy
Give the colour and function of the earth wire.
- 3Particle Model of Matter
A 1.5 kg block of iron is heated from 18 degrees C to 98 degrees C. The specific heat capacity of iron is 450 J/(kg degrees C). Calculate the change in thermal energy.
- 4Density and the Particle Model of Matter
Why is melting described as a physical change?
- 5Particle Motion, Gas Pressure and Temperature
How is the temperature of a gas related to the motion of its molecules?
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