Daily Practice · GCSE Science
May 1969 5-a-day
Every sheet in May 1969
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st May 1969Why does simple molecular carbon dioxide have a much lower melting point than giant covalent silicon dioxide?
- 2nd May 1969Define oxidation in terms of electrons.
- 3rd May 1969State two units that the rate of a reaction can be measured in.
- 4th May 1969State the functional group found in all alcohols.
- 5th May 1969Explain, in one sentence, why the oceans were able to form only after the early Earth had cooled.
- 6th May 1969A 3 kg object is raised 2 m. Calculate the gravitational potential energy gained. (g = 9.8 N/kg)
- 7th May 1969A 1.5 kg block of iron is heated from 18 degrees C to 98 degrees C. The specific heat capacity of iron is 450 J/(kg degrees C). Calculate the change in thermal energy.
- 8th May 1969A 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.
- 9th May 1969State what happens to the frequency of a wave when it is refracted as it passes into a different material.
- 10th May 1969State two factors that increase the size of the potential difference induced in a coil.
- 11th May 1969State one structure found in a bacterial cell but not in an animal cell.
- 12th May 1969State two functions of bile.
- 13th May 1969What is an antigen?
- 14th May 1969Put these into the correct order for a reflex arc: motor neuron, receptor, effector, relay neuron, sensory neuron.
- 15th May 1969State one structural adaptation of a polar bear that helps it survive in a cold environment.
- 16th May 1969Define a finite resource, giving one example.
- 17th May 1969State one reason why simple covalent substances such as chlorine have low melting points.
- 18th May 1969State two reasons why a percentage yield is less than 100 percent.
- 19th May 1969State what is meant by the activation energy of a reaction.
- 20th May 1969Name the process used to separate crude oil into fractions.
- 21st May 1969Explain why the baseline is drawn in pencil rather than ink.
- 22nd May 1969Give one reason for taking the gradient from the line of best fit rather than from two data points.
- 23rd May 1969State the equation linking potential difference, current and resistance.
- 24th May 1969Define half-life.
- 25th May 1969State Newton's First Law of Motion.
- 26th May 1969Two bar magnets are placed with their north poles facing each other. State what happens to the magnets.
- 27th May 1969State what is meant by red-shift.
- 28th May 1969Define osmosis.
- 29th May 1969A student measures the mean diameter of a zone of inhibition as 12 mm. Calculate its radius.
- 30th May 1969Explain why breathing rate and breathing depth both increase during exercise.
- 31st May 1969In pea plants, purple flower colour (allele H) is dominant over white flower colour (allele h). State the phenotype of a plant with genotype Hh.