Daily Practice · GCSE Science
October 2010 - GCSE Science 5-a-day
Every GCSE Science sheet published in October 2010, with answers. Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
Every sheet in October 2010
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st October 2010State whether friction is a contact force or a non-contact force.
- 2nd October 2010Give one everyday example of a transverse wave and one everyday example of a longitudinal wave.
- 3rd October 2010State what happens to the orbital speed needed for a stable orbit as the orbital radius increases.
- 4th October 2010Convert 0.05 mm into micrometres.
- 5th October 2010State the function of the valves in the heart and in veins.
- 6th October 2010Complete the word equation for anaerobic respiration in yeast: glucose -> ___ + ___
- 7th October 2010Explain why type 1 diabetes is treated with insulin injections rather than tablets.
- 8th October 2010The Arctic fox has small, rounded ears compared with the desert fennec fox, which has very large ears. State whether this is a structural, behavioural or functional adaptation, and explain how it helps the Arctic fox survive.
- 9th October 2010Give one reason distillation of seawater requires a large energy input.
- 10th October 2010Write the formula of calcium chloride and explain the ratio.
- 11th October 2010A student reacts 2.4 g of magnesium with excess dilute hydrochloric acid: Mg + 2HCl -> MgCl2 + H2. Relative atomic mass of Mg = 24. Calculate the number of moles of hydrogen gas produced.
- 12th October 2010Hydrogen reacts with chlorine to form hydrogen chloride: H2 + Cl2 -> 2HCl. Use the bond energies given to calculate the overall energy change for this reaction. Bond energies: H-H = 436 kJ/mol, Cl-Cl = 243 kJ/mol, H-Cl = 432 kJ/mol.
- 13th October 2010Name the alkene with the molecular formula C4H8.
- 14th October 2010Name the two gases released in large amounts by volcanic activity that formed most of the Earth's early atmosphere.
- 15th October 2010Name the energy store associated with a moving car.
- 16th October 2010Give the equation linking energy transferred, charge flow and potential difference.
- 17th October 2010Who provided the evidence for the existence of the neutron, and roughly when relative to the nuclear model?
- 18th October 2010A spanner is used to loosen a bolt. Explain why using a longer spanner makes it easier to loosen the bolt.
- 19th October 2010State two ways of increasing the force produced by a motor effect setup, for a wire of fixed length at a fixed angle to the field.
- 20th October 2010Why does taking repeat readings and calculating a mean improve the data?
- 21st October 2010State the type of large biological molecule that all enzymes are made from.
- 22nd October 2010State two ways measles is prevented from spreading.
- 23rd October 2010Name the hormone released when blood glucose concentration is too high, and state its overall effect.
- 24th October 2010Define mutation.
- 25th October 2010A sample contains 90% of an isotope with mass number 10 and 10% of an isotope with mass number 11. Calculate the relative atomic mass, to 1 decimal place.
- 26th October 2010Give two observations when lithium is added to water.
- 27th October 2010State the value of the Avogadro constant and what it counts.
- 28th October 2010Using the values in the previous question, calculate the overall energy change for the reaction.
- 29th October 2010The forward reaction of a particular reversible reaction is exothermic. State whether the reverse reaction is exothermic or endothermic.
- 30th October 2010Write the ionic equation for the precipitation reaction between barium ions and sulfate ions.
- 31st October 2010Write the equation linking power, energy and time, and rearrange it for time.