Daily Practice

GCSE Science

13th October 1974

5 questions · GCSE · 584 questions in this band

1
Atomic Structure
State the difference between irradiation and contamination.
2
Atomic Structure and the Development of the Model
State the approximate radius of a nucleus compared with the radius of an atom.
3
Radioactivity, Half-Life and Nuclear Uses
Explain why americium-241, an alpha emitter, is suitable for use in a smoke detector.
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 car's velocity increases from 8 m/s to 20 m/s over 4 seconds. Calculate its acceleration.

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