Daily Practice · GCSE Science

Daily Practice - GCSE Science

19th March 1995

5 questions · GCSE · 584 questions in this band

1
Atomic Structure
State the difference between irradiation and contamination.
2
Atomic Structure and the Development of the Model
State the approximate radius of a nucleus compared with the radius of an atom.
3
Radioactivity, Half-Life and Nuclear Uses
Explain why americium-241, an alpha emitter, is suitable for use in a smoke detector.
4
Forces
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.
5
Motion: Speed, Velocity and Acceleration
On a velocity-time graph, what does the area between the line and the time axis represent?

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