Daily Practice · GCSE Science

Daily Practice - GCSE Science

15th December 1993

5 questions · GCSE · 584 questions in this band

1
Atomic Structure and the Development of the Model
State the approximate radius of a nucleus compared with the radius of an atom.
2
Radioactivity, Half-Life and Nuclear Uses
Explain why americium-241, an alpha emitter, is suitable for use in a smoke detector.
3
Forces
A resultant force of 45 N acts on an object of mass 9.0 kg. Calculate its acceleration. Use F = m x a.
4
Motion: Speed, Velocity and Acceleration
State what the gradient of a distance-time graph represents.
5
Forces, Newton's Laws and Momentum
Explain why a larger vehicle mass increases braking distance.

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