GCSE Science
11th March 1993
- 1Atomic Structure
What is an alpha particle made of?
- 2Atomic Structure and the Development of the Model
Who provided the evidence for the existence of the neutron, and roughly when relative to the nuclear model?
- 3Radioactivity, Half-Life and Nuclear Uses
Radium-226 (atomic number 88) decays by alpha emission. State the atomic number of the nucleus formed.
- 4Forces
Calculate the weight of an object of mass 8.0 kg on Earth, where g = 9.8 N/kg.
- 5Motion: Speed, Velocity and Acceleration
A ball decelerates uniformly from 18 m/s to 0 m/s over a distance of 2.7 m while being caught. Using (final velocity)^2 = (initial velocity)^2 + 2 x acceleration x distance, calculate its deceleration.
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