Daily Practice · GCSE Science
November 1983 5-a-day
Every sheet in November 1983
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st November 1983Why can metals conduct electricity when solid?
- 2nd November 1983A 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.
- 3rd November 1983State whether forming a new chemical bond requires energy or releases energy.
- 4th November 1983Name the alkene with the molecular formula C4H8.
- 5th November 1983Name the two gases released in large amounts by volcanic activity that formed most of the Earth's early atmosphere.
- 6th November 1983Name the energy store associated with a moving car.
- 7th November 1983What is the difference between alternating and direct current?
- 8th November 1983What observation showed that the atom is mostly empty space?
- 9th November 1983A spanner is used to loosen a bolt. Explain why using a longer spanner makes it easier to loosen the bolt.
- 10th November 1983State 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.
- 11th November 1983In the microbiology practical, why are agar plates incubated at 25 degrees Celsius in schools rather than at 37 degrees Celsius?
- 12th November 1983State the type of large biological molecule that all enzymes are made from.
- 13th November 1983Why can HIV not be treated with antibiotics?
- 14th November 1983Name the hormone released when blood glucose concentration is too high, and state its overall effect.
- 15th November 1983Define mutation.
- 16th November 1983A 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.
- 17th November 1983State the trend in reactivity down group 7 and name the most reactive halogen listed on the periodic table.
- 18th November 1983Define the limiting reactant.
- 19th November 1983Using the values in the previous question, calculate the overall energy change for the reaction.
- 20th November 1983The forward reaction of a particular reversible reaction is exothermic. State whether the reverse reaction is exothermic or endothermic.
- 21st November 1983Explain how the sodium hydroxide test distinguishes aluminium ions from calcium ions, given that both give a white precipitate.
- 22nd November 1983Why should you write down the equation even if you cannot finish the calculation?
- 23rd November 1983A resistor of resistance 15 ohm is connected to a 6.0 V supply. Calculate the current flowing through it. Use V = I x R.
- 24th November 1983What causes the pressure of a gas on the walls of its container?
- 25th November 1983State what the gradient of a distance-time graph represents.
- 26th November 1983Explain why ultraviolet, X-rays and gamma rays can be hazardous to human health, but radio waves are not.
- 27th November 1983Explain, in terms of forces, why a satellite in a stable orbit does not fall towards the Earth or fly off into space.
- 28th November 1983Give one advantage of therapeutic cloning over using unrelated embryonic stem cells.
- 29th November 1983Why are xylem cells strengthened with lignin?
- 30th November 1983Why is glucose converted into starch for storage?