Daily Practice

GCSE Science

8th December 1991

5 questions · GCSE · 584 questions in this band

1
Atomic 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?
2
Radioactivity, Half-Life and Nuclear Uses
Radium-226 (atomic number 88) decays by alpha emission. State the atomic number of the nucleus formed.
3
Forces
A box has a driving force of 250 N forward and friction of 180 N backward. Calculate the resultant force, including its direction.
4
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.
5
Forces, Newton's Laws and Momentum
A shopping trolley has a mass of 25 kg. Calculate its weight, taking g = 9.8 N/kg.

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