Daily Practice

13+ Common Entrance

17th October 1991

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

1
Chemistry: Reactions, Energy and Rates
Explain, using collision theory, why crushing a solid into a powder increases the rate of reaction.
2
Chemistry: Metals, the Reactivity Series and Environmental Chemistry
Name the gas released when fossil fuels are burned that is the main cause of the enhanced greenhouse effect.
3
Physics: Forces and Energy
State whether the main force acting when a compass needle points north is a contact force or a non-contact force.
4
Physics: Electricity, Magnetism and Waves
Name the circuit component whose symbol is a circle with a cross inside it.
5
Physics: Light, Sound and Space
An astronaut has a mass of 70 kg on Earth. State her mass on the Moon, and explain why her weight on the Moon is less than her weight on Earth.

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