Daily Practice
GCSE Science
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17th September 1991
- 1Atomic Structure and the Development of the Model
What observation showed that the atom is mostly empty space?
- 2Radioactivity, Half-Life and Nuclear Uses
Define the term 'half-life' of a radioactive isotope.
- 3Forces
A gardener pushes a mower with a force of 60 N through a distance of 8.0 m. Calculate the work done. Use W = F x s.
- 4Motion: Speed, Velocity and Acceleration
Define the term 'vector quantity' and give one example.
- 5Forces, Newton's Laws and Momentum
Calculate the momentum of a 1200 kg car travelling at 18 m/s.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of September 1991, including the monthly compilation PDF.