Daily Practice

GCSE Science

5th September 1990

5 questions · GCSE · 584 questions in this band

1
Radioactivity, Half-Life and Nuclear Uses
Radium-226 (atomic number 88) decays by alpha emission. State the atomic number of the nucleus formed.
2
Forces
A cyclist rides 300 m north then 300 m back south to the start. State the total distance travelled and total displacement.
3
Motion: 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.
4
Forces, Newton's Laws and Momentum
A resultant force of 60 N acts on a wheelbarrow of mass 15 kg. Calculate its acceleration.
5
Pressure, Moments and Levers
A spanner is used to loosen a bolt. Explain why using a longer spanner makes it easier to loosen the bolt.

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