Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
4th January 2019
- 1Atomic Structure
Which type of radiation is stopped by a sheet of paper?
- 2Atomic Structure and the Development of the Model
Describe the plum pudding model.
- 3Radioactivity, Half-Life and Nuclear Uses
A GM tube detects a count rate of 240 counts per minute from a source. After 15 days the count rate has fallen to 30 counts per minute. Show that this data is consistent with a half-life of 5 days.
- 4Forces
A resultant force of 45 N acts on an object of mass 9.0 kg. Calculate its acceleration. Use F = m x a.
- 5Motion: Speed, Velocity and Acceleration
Define the term 'vector quantity' and give one example.
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