Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
9th March 2023
- 1Particle Motion, Gas Pressure and Temperature
What causes the pressure of a gas on the walls of its container?
- 2Atomic Structure
State the difference between irradiation and contamination.
- 3Atomic Structure and the Development of the Model
State the approximate radius of a nucleus compared with the radius of an atom.
- 4Radioactivity, Half-Life and Nuclear Uses
Explain why americium-241, an alpha emitter, is suitable for use in a smoke detector.
- 5Forces
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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