Daily Practice · GCSE Science

Daily Practice - GCSE Science

24th November 1994

5 questions · GCSE · 584 questions in this band

1
Particle Motion, Gas Pressure and Temperature
What causes the pressure of a gas on the walls of its container?
2
Atomic Structure
State the difference between irradiation and contamination.
3
Atomic Structure and the Development of the Model
State the approximate radius of a nucleus compared with the radius of an atom.
4
Radioactivity, Half-Life and Nuclear Uses
Explain why americium-241, an alpha emitter, is suitable for use in a smoke detector.
5
Forces
A box has a driving force of 250 N forward and friction of 180 N backward. Calculate the resultant force, including its direction.

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