Daily Practice

13+ Common Entrance

8th December 1983

5 questions · Years 7-8 · 744 questions in this band

1
Chemistry: Metals, the Reactivity Series and Environmental Chemistry
State the method used to extract aluminium from its ore, and explain why this method is needed rather than reduction with carbon.
2
Physics: Forces and Energy
A trolley of mass 20 kg is pushed with a resultant force of 60 N. Use force = mass x acceleration to calculate its acceleration.
3
Physics: Electricity, Magnetism and Waves
State one way, other than increasing the current, to increase the strength of an electromagnet made from a coil of wire around an iron core.
4
Physics: Light, Sound and Space
State why an astronaut in open space, far from any planet or star, cannot hear an explosion happening nearby.
5
Physics: Forces, Motion and Energy Resources
A runner covers 400 m in 50 seconds at a constant speed. Use speed = distance / time to calculate her speed.

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Any date always gives the same five questions, so a sheet can be set again or shared. All of December 1983, including the monthly compilation PDF.