Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
2nd April 2025
- 1Radioactivity, Half-Life and Nuclear Uses
Radium-226 (atomic number 88) decays by alpha emission. State the atomic number of the nucleus formed.
- 2Forces
Calculate the weight of an object of mass 8.0 kg on Earth, where g = 9.8 N/kg.
- 3Motion: Speed, Velocity and Acceleration
A skydiver reaches terminal velocity during free fall. Explain what is meant by 'terminal velocity'.
- 4Forces, Newton's Laws and Momentum
A skateboarder of mass 55 kg moving at 4 m/s collides with and grabs onto a stationary shopping trolley of mass 20 kg, and they move off together. Calculate their combined velocity immediately after the collision.
- 5Pressure, Moments and Levers
A force of 40 N is applied 0.25 m from a pivot. Calculate the moment.
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