Daily Practice · GCSE Science
October 1967 5-a-day
Every sheet in October 1967
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st October 1967Why does the rate of photosynthesis fall at very high temperatures?
- 2nd October 1967In pea plants, the allele for tall stems (T) is dominant over the allele for short stems (t). A homozygous tall plant (TT) is crossed with a homozygous short plant (tt). State the genotype and phenotype of all the offspring.
- 3rd October 1967Explain why large-scale deforestation increases the concentration of carbon dioxide in the atmosphere.
- 4th October 1967State the four stages considered in a life cycle assessment.
- 5th October 1967Why does simple molecular carbon dioxide have a much lower melting point than giant covalent silicon dioxide?
- 6th October 1967Define oxidation in terms of electrons.
- 7th October 1967State two units that the rate of a reaction can be measured in.
- 8th October 1967State what happens to the carbon-to-carbon double bond of an alkene monomer during addition polymerisation.
- 9th October 1967State two long-term stores of carbon that removed carbon dioxide from the early atmosphere.
- 10th October 1967A 3 kg object is raised 2 m. Calculate the gravitational potential energy gained. (g = 9.8 N/kg)
- 11th October 1967Calculate the energy needed to melt 0.50 kg of a substance with a specific latent heat of fusion of 210000 J/kg.
- 12th October 1967A GM tube detects a count rate of 240 counts per minute from a source. After 15 days the count rate has fallen to 30 counts per minute. Show that this data is consistent with a half-life of 5 days.
- 13th October 1967Name the type of electromagnetic wave used to sterilise medical equipment.
- 14th October 1967A transformer has a primary current of 2.0 A and a primary voltage of 230 V. The secondary voltage is 460 V. Assuming the transformer is 100 percent efficient, calculate the secondary current.
- 15th October 1967Name the structure in a plant cell that controls the substances entering and leaving the cell.
- 16th October 1967State two functions of bile.
- 17th October 1967What is an antigen?
- 18th October 1967Explain why reflex responses are faster than voluntary responses.
- 19th October 1967Define community, in ecological terms.
- 20th October 1967Name two methods of desalinating seawater.
- 21st October 1967Name the giant covalent structure made of carbon in which each carbon atom is bonded to four others.
- 22nd October 1967State two reasons why a percentage yield is less than 100 percent.
- 23rd October 1967State what is meant by the activation energy of a reaction.
- 24th October 1967Name the two industrial methods of cracking.
- 25th October 1967Explain why the baseline is drawn in pencil rather than ink.
- 26th October 1967Give one reason for taking the gradient from the line of best fit rather than from two data points.
- 27th October 1967State the equation linking potential difference, current and resistance.
- 28th October 1967Define half-life.
- 29th October 1967Explain, using Newton's Third Law, why a swimmer is able to push themselves forward by pushing backward against the water.
- 30th October 1967State what happens to the magnetic field around a straight current-carrying wire if the direction of the current is reversed.
- 31st October 1967State what red-shift shows about the motion of most distant galaxies.