Daily Practice · GCSE Science

Daily Practice - GCSE Science

30th June 1994

5 questions · GCSE · 584 questions in this band

1
Radioactivity, Half-Life and Nuclear Uses
A GM tube detects a count rate of 240 counts per minute from a source. After 15 days the count rate has fallen to 30 counts per minute. Show that this data is consistent with a half-life of 5 days.
2
Forces
A resultant force of 45 N acts on an object of mass 9.0 kg. Calculate its acceleration. Use F = m x a.
3
Motion: Speed, Velocity and Acceleration
On a velocity-time graph, what does the area between the line and the time axis represent?
4
Forces, Newton's Laws and Momentum
State two factors that increase a driver's thinking distance.
5
Pressure, Moments and Levers
State two factors, other than depth, that affect the pressure at a given point in a liquid.

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