Daily Practice · GCSE Science

Daily Practice - GCSE Science

9th March 1997

5 questions · GCSE · 584 questions in this band

1
Particle Model of Matter
State the correct SI unit for density.
2
Density and the Particle Model of Matter
Convert a density of 2.7 grams per cubic centimetre into kilograms per cubic metre.
3
Particle Motion, Gas Pressure and Temperature
A gas at 200 kPa occupies 3.0 cubic metres. It is compressed to 1.5 cubic metres at constant temperature. Calculate the new pressure.
4
Atomic Structure
A source has a half-life of 5 days and an initial activity of 1600 Bq. What is its activity after 15 days?
5
Atomic Structure and the Development of the Model
Why is the atomic model a good example of how scientific models change?

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