Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
5th December 2010
- 1Atomic Structure
State the difference between irradiation and contamination.
- 2Atomic Structure and the Development of the Model
State the approximate radius of a nucleus compared with the radius of an atom.
- 3Radioactivity, Half-Life and Nuclear Uses
Explain why americium-241, an alpha emitter, is suitable for use in a smoke detector.
- 4Forces
A resultant force of 45 N acts on an object of mass 9.0 kg. Calculate its acceleration. Use F = m x a.
- 5Motion: Speed, Velocity and Acceleration
A runner completes a 400 m race in 52 s. Calculate her average speed, giving your answer to 3 significant figures.
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Every sheet is deterministic: the same date always regenerates the same five questions. All of December 2010, including the monthly compilation PDF.