Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
2nd September 2020
- 1Atomic Structure and the Development of the Model
State the approximate radius of a nucleus compared with the radius of an atom.
- 2Radioactivity, Half-Life and Nuclear Uses
Explain why americium-241, an alpha emitter, is suitable for use in a smoke detector.
- 3Forces
Calculate the weight of an object of mass 8.0 kg on Earth, where g = 9.8 N/kg.
- 4Motion: Speed, Velocity and Acceleration
A train travels at a constant velocity of 40 m/s for 3 minutes. Calculate the distance it travels, in km.
- 5Forces, Newton's Laws and Momentum
A shopping trolley has a mass of 25 kg. Calculate its weight, taking g = 9.8 N/kg.
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