Daily Practice · 13+ Common Entrance

Daily Practice - 13+ Common Entrance

13th September 1994

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

1
Chemistry: The Periodic Table and Separating Mixtures
Name the group of the periodic table that contains elements which are almost completely unreactive because their outer electron shell is full.
2
Chemistry: Reactions, Energy and Rates
State what happens to a catalyst during a chemical reaction.
3
Chemistry: Metals, the Reactivity Series and Environmental Chemistry
In the reactivity series, state which is more reactive: zinc or copper.
4
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.
5
Physics: Electricity, Magnetism and Waves
A wave has a frequency of 50 Hz and a wavelength of 4 m. Use wave speed = frequency x wavelength to calculate its speed.

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