Daily Practice

GCSE Science

17th February 1976

5 questions · GCSE · 584 questions in this band

1
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?
2
Atomic Structure and the Development of the Model
Why is the atomic model a good example of how scientific models change?
3
Radioactivity, Half-Life and Nuclear Uses
Explain the difference between irradiation and contamination.
4
Forces
A cyclist rides 300 m north then 300 m back south to the start. State the total distance travelled and total displacement.
5
Motion: Speed, Velocity and Acceleration
A train travels at a constant velocity of 40 m/s for 3 minutes. Calculate the distance it travels, in km.

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