Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
- 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
A gardener pushes a mower with a force of 60 N through a distance of 8.0 m. Calculate the work done. Use W = F x s.
- 4Motion: Speed, Velocity and Acceleration
On a velocity-time graph, what does the area between the line and the time axis represent?
- 5Forces, Newton's Laws and Momentum
State two factors that increase a driver's thinking distance.
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