Daily Practice · GCSE Science
July 1966 5-a-day
Every sheet in July 1966
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st July 1966In the rate experiment where a cross disappears, why is the result subjective?
- 2nd July 1966An atom has an atomic number of 17 and a mass number of 37. How many neutrons does it have?
- 3rd July 1966Calculate the number of moles in 20 g of calcium carbonate. (Mr = 100)
- 4th July 1966Concentrated sodium chloride solution (brine) is electrolysed using inert electrodes. State the products formed at the cathode and at the anode.
- 5th July 1966Explain why increasing temperature increases the rate of a reaction, referring to both the frequency and the energy of collisions.
- 6th July 1966A solid gives a lilac flame test. Name the metal ion present.
- 7th July 1966Name the two additional products that can form during the incomplete combustion of a hydrocarbon fuel.
- 8th July 1966Give the equation for efficiency in terms of energy.
- 9th July 1966Calculate the mass of 0.5 cubic metres of a material of density 2400 kilograms per cubic metre.
- 10th July 1966Calculate the weight of an object of mass 8.0 kg on Earth, where g = 9.8 N/kg.
- 11th July 1966Sound waves travel through a steel rail at approximately 5900 m/s. A sound wave sent along the rail has a frequency of 2950 Hz. Calculate its wavelength.
- 12th July 1966State the eventual fate of a star with a much greater mass than the Sun, after it explodes as a supernova.
- 13th July 1966State the function of the mitochondria.
- 14th July 1966Which component of blood transports carbon dioxide, urea and hormones?
- 15th July 1966Name the gas that is released as a product of photosynthesis.
- 16th July 1966Name the gland often called the body's master gland.
- 17th July 1966A student places ten 1 m x 1 m quadrats at random across a school field of area 3000 m2 and counts a total of 45 dandelions across all ten quadrats. Estimate the total number of dandelions on the field.
- 18th July 1966Explain why potable water is not required to be chemically pure.
- 19th July 1966Why can metals conduct electricity when solid?
- 20th July 1966State the name given to a reaction in which a substance loses electrons.
- 21st July 1966State whether forming a new chemical bond requires energy or releases energy.
- 22nd July 1966State the number of covalent bonds a carbon atom forms in a saturated hydrocarbon.
- 23rd July 1966Give two processes that removed carbon dioxide from the early atmosphere.
- 24th July 1966Calculate the kinetic energy of a 2.0 kg trolley moving at 4.0 m/s.
- 25th July 1966What is the difference between alternating and direct current?
- 26th July 1966What observation showed that the atom is mostly empty space?
- 27th July 1966State the equation that links pressure, force and area.
- 28th July 1966In a simple d.c. electric motor, state the name and function of the component that reverses the current in the coil every half turn.
- 29th July 1966In the microbiology practical, why are agar plates incubated at 25 degrees Celsius in schools rather than at 37 degrees Celsius?
- 30th July 1966Explain why the rate of an enzyme-controlled reaction decreases sharply above the enzyme's optimum temperature.
- 31st July 1966Why can HIV not be treated with antibiotics?