Daily Practice · GCSE Science

Daily Practice - GCSE Science

16th June 1997

5 questions · GCSE · 584 questions in this band

1
Atomic Structure
State the approximate radius of an atom.
2
Atomic Structure and the Development of the Model
What did Bohr add to the nuclear model?
3
Radioactivity, Half-Life and Nuclear Uses
State the number of protons and the number of neutrons in an alpha particle.
4
Forces
A resultant force of 45 N acts on an object of mass 9.0 kg. Calculate its acceleration. Use F = m x a.
5
Motion: Speed, Velocity and Acceleration
Define the term 'vector quantity' and give one example.

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