Daily Practice - 13+ Common Entrance
Common Entrance english, maths and science.
8th September 2014
- 1Chemistry: Reactions, Energy and Rates
A reaction between magnesium ribbon and hydrochloric acid gives off heat, and the temperature of the acid rises from 20 degrees C to 35 degrees C. State whether this reaction is exothermic or endothermic, and explain how you know.
- 2Chemistry: 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.
- 3Physics: Forces and Energy
A farmer weighing 900 N stands on the ground. Her boots have a total sole area of 0.03 m^2. Use pressure = force / area to calculate the pressure she exerts on the ground, giving your answer in Pa.
- 4Physics: Electricity, Magnetism and Waves
In a series circuit, an ammeter placed before a bulb reads 0.6 A. State the current a second ammeter, placed elsewhere in the same series circuit, would read.
- 5Physics: Light, Sound and Space
State the law of reflection.
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