Cambridge international AS & A Level Past Papers Practice

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A Levels | Accounting (9706)
Question Count : 30

Duration :1 hours

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A Levels | Accounting (9706)

30 Different Questions Every time

1 / 30

On 1 January 2019, a non-current asset was purchased at a cost of $290 000. Delivery and
installation costs of $10 000 were also paid.
The reducing balance method is used to depreciate the asset at a rate of 20% per annum. A full
year’s depreciation is charged in the year of acquisition and none in the year of disposal.
On 31 December 2021, the non-current asset was sold for $205 000. Disposal costs of $5000
were also paid.
What was the profit on disposal?

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The correction of which error would require an entry in the suspense account?

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Which statements about depreciation are correct?

  1. It is an application of the matching concept.
  2. It provides funds for the replacement of a non-current asset.
  3. It spreads the cost of a non-current asset over its useful life.

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A business has two production departments: machining and assembly. The budgeted direct
labour hours for each department are:
machining 4000
assembly 16 000.
The business has calculated overhead absorption rates as:
machining $12 per direct machining hour
assembly $7.70 per direct labour hour.
Insurance of $4800 relating to the assembly department was incorrectly omitted when making the
calculations.
What is the correct overhead absorption rate for the assembly department?

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Which statement is correct?

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Which statements about an unpresented cheque are correct?

  1. It arises as the result of an error of omission.
  2. It arises from a timing difference.
  3. It is used when preparing a bank reconciliation statement.

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Which statement about the purpose of a trial balance is correct?

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Goods, $1200, sent to a customer on a sale or return basis have not been recorded in the sales
journal.
Which accounting concept has been applied?

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Which items will be included in the sales ledger control account?

  1. amounts owed by credit customers at the end of the previous month
  2. provision for doubtful debts
  3. total of the invoices sent out to credit customers
  4. total of the sales returns journal

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A trader depreciates loose tools using the revaluation method.
Which account is credited at the end of the year to record depreciation on loose tools?

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Why might a business use budgets?

  1. to determine the level of demand for its product
  2. to have a benchmark against which to assess actual performance
  3. to know how much raw material suppliers will be able to supply

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What is a limitation of absorption costing?

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Which values per unit are not sufficient to enable the calculation of the contribution to sales ratio?

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A Levels | Biology (9700)
Question Count : 40

Duration :1 hours

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A Levels | Biology (9700)

40 Different Questions Every time

1 / 40

The statements describe the process of translation.

  1. A peptide bond forms between adjacent amino acids.
  2. Hydrogen bonds form between the anticodon and the codon.
  3. mRNA binds to the ribosome.
  4. tRNA enters the ribosome carrying a specific amino acid.
    In which order does this process take place?

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Which have properties that are dependent on hydrogen bonds?

  1. cellulose
  2. a molecule of haemoglobin
  3. water

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Some animals produce antimicrobial proteins which protect them from pathogens. These proteins
could be used to kill human pathogens, however when used as a medicine they are broken down
by protein-digesting enzymes.
Replacing one of the amino acids found in the protein with an amino acid that had been
synthesised in the laboratory resulted in a modified protein that was not broken down.
What could explain why this modified protein was not broken down by the protein-digesting
enzymes?

  1. The modified protein has a different tertiary structure to the original protein.
  2. The modified protein is not complementary in shape to the enzyme’s active site.
  3. The modified protein is unable to induce a fit with the protein-digesting enzyme.

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Which statements are correct for chloroplasts and also for mitochondria?

  1. They contain 80S ribosomes.
  2. They can transcribe their circular DNA.
  3. They can translate mRNA.
  4. They are enclosed by double membranes.

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Which statement about the Michaelis–Menten constant (Km) is correct for an enzyme with a low
affinity for its substrate?

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What describes cellulose?

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When animal cells are cultured, salt solution is added to keep the cells alive.
What is the purpose of the salt solution?

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Telomeres prevent the loss of genes from the ends of chromosomes during DNA replication, but
they become shorter each time they are copied.
In cancer cells and stem cells, the telomeres remain the same length.
Which statement is correct for all human cells?

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36 / 40

Some foods contain hydrogenated vegetable fats. These are unsaturated fats that have been
converted to saturated fats.
Which property of the fats will have changed?

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Which properties of water molecules are important in the upward flow of water through the
xylem?

  1. Water molecules are attracted to each other by hydrogen bonding.
  2. Water molecules are attracted to cellulose by adhesion
  3. Water molecules have high cohesion in water columns.

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Which statements about complementary base pairing are correct?

  1. Cytosine forms two hydrogen bonds with guanine.
  2. Purines and pyrimidines are different sizes.
  3. Adenine forms the same number of hydrogen bonds with thymine as it does with
    uracil.
  4. The base pairs in a molecule of DNA are of equal length and equal width.

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A Levels | Chemistry (9701)
Question Count : 40

Duration :1 hours

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A Levels | Chemistry (9701)

40 Different Questions Every time

1 / 40

How many moles of oxygen, O2, are needed to burn 1 mol of ethane if the products of the
reaction are water and carbon only?

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The equation for a chemical reaction is shown. All substances are in their standard states.
XeF6 + 3H2O → XeO3 + 6HF
Which statement describes the standard enthalpy change of reaction for this reaction?

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Hydrated cobalt(II) sulfate loses water when heated to give anhydrous cobalt(II) sulfate. All the
water of crystallisation is lost to the atmosphere as steam.

When 3.10 g of hydrated cobalt(II) sulfate, CoSO4•xH2O, is heated to constant mass the loss in
mass is 1.39 g.
What is the value of x, to the nearest whole number?

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Which equation represents a reaction that proceeds through initiation, propagation and termination
steps?

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Mixture R consists of one mole of C3H6 and one mole of C4H6.
What is the minimum number of moles of oxygen molecules needed for complete combustion of
mixture R?

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Which pair of reagents react together in a redox reaction?

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Which gas will behave least like an ideal gas at 150 °C and 101 kPa?

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Alkynes are hydrocarbons that contain one triple C≡C bond.
Like alkenes, alkynes take part in addition reactions. A saturated compound can be formed.
For example, ethyne, H–C≡C–H, reacts with an excess of hydrogen to form ethane.

Propyne, C3H4, undergoes an addition reaction with an excess of hydrogen bromide in two stages.
Markovnikov’s rule applies to the addition of HBr at each stage.
What is the main product obtained when propyne reacts with an excess of hydrogen bromide?

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Ammonium ions are converted into nitrate ions by bacteria.
What is the change in the oxidation number of nitrogen?

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A 200 cm3 sample of water has an amount of oxygen gas dissolved in it

This amount of oxygen gas has a volume of 6.00 cm3 when measured at 1.00 × 105Pa and 35°C.

What is the concentration of oxygen gas in the water? (You should assume that oxygen behaves
as an ideal gas.)

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The conversion of propan-1-ol into propan-2-ol can be completed in a two-stage synthesis.
The first stage is to heat the propan-1-ol with concentrated sulfuric acid.
Which reagent would be needed to complete the second stage?

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Which reaction mixture produces an acidic gas?

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A student mixed 25.0 cm3 of 4.00 mol dm-3 hydrochloric acid with an equal volume of 4.00 mol dm-3
sodium hydroxide. The initial temperature of both solutions was 15.0°C. The maximum temperature
recorded was 30.0°C. The heat capacity of the final solution can be assumed to be 4.18 J K-1 g-1
and the density of this solution can be assumed to be 1.00 g cm-3.
Using these results, what is the enthalpy change of neutralisation of hydrochloric acid?

30 / 40

Which compound gives both:

  • an orange precipitate with 2,4-DNPH reagent
  • and a yellow precipitate with alkaline I2(aq)?

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Which compound has the smallest difference in electronegativity between its two elements?

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Four properties of beryllium, Be, or a beryllium compound are listed.
Which property is different from the property of magnesium or the equivalent magnesium compound?

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A Levels | Economics (9708)
Question Count : 30

Duration :1 hours

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A Levels | Economics (9708)

30 Different Questions Every time

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What is the main characteristic of a planned economy?

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A country had a current account surplus of $141bn.
Which policy may its government implement to reduce this surplus in the short run?

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What is necessary for consumer surplus to be zero?

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What is ‘a produced means of further production’?

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Which change affecting the foreign exchange market for the US$ would be most likely to result in
a shift to the right of the demand curve and a movement along the supply curve?

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What can be best understood from a knowledge of a country’s terms of trade?

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Why does the basic economic problem of scarcity apply to both the rich and the poor?

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Food prices in a country increased by 20% in three months due to an infectious virus.
Which statement about the cause of this rise in food prices is normative?

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Which list has the most words that are more likely to relate to a positive statement than to a
normative statement?

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What is an example of contractionary fiscal policy?

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When will the demand curve for motorcycles shift to the left?

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The central bank of an economy decides to raise interest rates in order to attract capital inflows
and improve the financial account of the balance of payments.

When is the central bank’s decision least likely to be effective?

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In which situation is the price elasticity of supply for a product most likely to be relatively low?

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What, if decreased, will help to reduce the rate of inflation?

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What is least likely to rise as a result of the use of expansionary fiscal policy?

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Why does the basic economic problem of scarcity apply to both the rich and the poor?

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Which statement defines the price elasticity of supply?

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A country operates a fixed exchange rate system.
What will put pressure on the country to devalue its currency?

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Product X has a price elasticity of supply (PES) of +2, whilst product Y has a PES of +0.2.
Which statement about products X and Y is correct?

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A country has a floating exchange rate.
An increase in which variable in the country will cause its currency to appreciate?

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A Levels | Physics (9702)
Question Count : 40

Duration :1 hours

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A Levels | Physics (9702)

40 Different Questions Every time

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The principle of superposition states that a certain quantity is added when two or more waves
meet at a point.
What is this quantity?

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Water is pumped through a nozzle at the end of a hose. The nozzle has a circular cross-section
of diameter 50 mm. A mass of 100 kg of water takes a time of 2.0 s to move through the nozzle.
The density of water is 1000 kgm–3.
What is the speed of the water in the nozzle?

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A rigid sphere is held at rest on the sea bed. When the sphere is released, it rises to the surface
of the sea. The seawater has a uniform density.
Which statement about the sphere, from its release until it reaches the surface, is correct?

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In an experiment on α-particle scattering, α-particles are directed at a thin gold foil. Most of the
α-particles pass straight through the foil or are deflected by a small angle. A small number of
α-particles are deflected by a large angle.
Which statement cannot be deduced from this experiment?

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The potential difference (p.d.) across a filament lamp is increased.
Which statement is correct?

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Which quantity is a physical quantity?

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What is the difference between a scalar quantity and a vector quantity?

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Two solid cubes X and Y are made of material of the same density. Cube X has twice the mass
of cube Y.
Cube X has sides of length x. Cube Y has sides of length y.
What is the ratio x/y ?

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A nichrome wire has a resistance of 15Ω and a diameter of 3.0 mm. The number density of the
free electrons in nichrome is 9.0 × 1028 m–3.
A potential difference (p.d.) of 6.0V is applied between the ends of the wire.
What is the average drift speed of the free electrons in the wire?

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A beam of light from a laser is incident normally on a double slit. Interference fringes are seen on
a screen placed parallel to the double slit.
The separation of the two slits is a. The distance between the slits and the screen is D. The
distance between the centres of two adjacent bright fringes is x.
D and a are both halved.
What is the distance between the centres of two adjacent bright fringes after these changes?

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An object is displaced horizontally to the right in a uniform vertical gravitational field.
Which statement describes the change in the gravitational potential energy of the object?

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Which charge can be carried by a charge carrier?

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A goods train passes through a station at a steady speed of 10 m s–1 at time t = 0. An express
train is at rest at the station. The express train leaves the station with a uniform acceleration of
0.5 m s–2 just as the goods train goes past. Both trains move in the same direction on straight,
parallel tracks.
At which time t does the express train overtake the goods train?

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In a large container in an oil refinery, three oils of different densities are mixed. No chemical
activity occurs.
The mixture consists of:
1200 kg of oil of density 1100 kgm–3
1500 kg of oil of density 860 kgm–3
4000 kg of oil of density 910 kgm–3.
What is the density of the mixture?

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Two coherent progressive waves from different sources meet at a point.
Which condition must be satisfied for there to be zero resultant amplitude at the point where the
waves meet?

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Which statement about progressive waves is correct?

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A car is travelling at a constant velocity directly towards a man standing in the middle of the road.
The driver sounds the car’s horn as a warning. The horn emits a sound wave of constant
frequency.
The frequency of the sound heard by the man is different from the frequency of the sound emitted
by the horn.
Which statement is correct?

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Which quantity is a vector?

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In the α-particle scattering experiment, a beam of α-particles is aimed at a thin gold foil. Most of
the α-particles go straight through or are deflected by a small angle. A very small proportion are
deflected by more than 90°, effectively rebounding towards the source of the α-particles.
Which conclusion about the structure of atoms cannot be drawn from this experiment alone?

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An object is falling at a constant speed through a viscous liquid. FU is the upthrust on the object
due to the liquid. WL is the weight of the liquid displaced by the object. WO is the weight of the
object.
Which equation must be correct?

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