Daily Practice

13+ Common Entrance

19th August 1976

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
In a tug of war, Team X pulls with a force of 640 N and Team Y pulls with a force of 590 N in the opposite direction. Calculate the resultant force acting on the rope.
4
Physics: Electricity, Magnetism and Waves
A torch bulb has a resistance of 15 ohms and a current of 0.2 A flows through it. Use V = I x R to calculate the voltage across the bulb.
5
Physics: Light, Sound and Space
A ray of light travels from air into a glass block. State whether the ray bends towards the normal or away from the normal as it enters the glass.

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