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The diagram shows a measuring cylinder used to measure the volume of a small stone. What is the volume of the stone?
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The table shows the readings on a car speedometer at 5 second intervals.
[Table_1]
Which row describes the speed and the acceleration of the car?
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A car travels along the route PQRST in 30 minutes.
What is the average speed of the car?
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Which statement about mass or weight is correct?
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Two cylinders are made of the same metal. Both cylinders have the same cross-sectional area but one is longer than the other.
Which quantity is the same for both cylinders?
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A heavy beam rests on two supports. The diagram shows the only three forces $F_1$, $F_2$ and $F_3$ acting on the beam.
The beam is in equilibrium. Which statement is correct?
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The diagrams show four solid cones. The centre of mass of each cone is marked by a point labelled M.
Which cone is the most stable?
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A car is stationary at the top of a hill with the engine switched off. The brakes are released and the car rolls down the hill.
At which labelled point does the car have the greatest kinetic energy? Ignore friction.
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Electrical energy may be obtained from nuclear fission.
In which order is the energy transferred in this process?
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The table gives four forces and the surface area on which each force acts.
Which row gives the largest pressure on the surface?
[Table_1]
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The diagrams represent the molecules in two different states of matter. The arrows show the motion of the molecules.
What is state 1, and what is state 2?
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A swimmer feels cold after leaving warm water on a warm, windy day.
Why does she feel cold even though the air is warm?
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A circular metal disc is heated. Which quantity decreases?
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A block of copper and a block of lead are heated. The internal energy of each block increases by the same amount.
The block of copper has a lower thermal capacity than the block of lead.
Which conclusion can be made from this information?
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In a refrigerator, the cooling unit can be fitted either at the top or at the bottom. In an oven, the heater can be fitted either at the top or at the bottom.
Which row shows the best position for the cooling unit and the best position for the heater?
[Table_1]
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A girl is outdoors. She warms her hands by holding them near a fire, as shown. How does the heat from the fire reach her hands?
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The diagram represents a water wave. Which row shows the amplitude and the wavelength of the wave?
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The diagram represents circular wavefronts coming from point S. The wavefronts strike a barrier and are reflected so that they appear to come from point S_1.
Which diagram shows the reflected wavefronts?
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A plane mirror is fitted to a wall. Which statement about the image formed by the mirror is correct?
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A student draws a diagram representing three rays of light from point P passing through a converging lens. Each point labelled F is a principal focus of the lens.
Which of the rays has the student drawn correctly?
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Which group contains only electromagnetic waves?
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Two sounds X and Y are produced by loudspeakers.
The amplitude and frequency of each sound wave is given in the table.
[Table_1]
How does sound Y compare with sound X?
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Sounds are produced by vibrating objects. A certain object vibrates but a person nearby cannot hear any sound. Which statement could explain why nothing is heard?
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Which statement about a permanent bar magnet is correct?
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Which procedure may be used to demagnetise a steel bar?
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Two plastic rods P and Q are both negatively charged. Rod P hangs freely.
The end of rod Q is brought near to end X of rod P, and then near to end Y of rod P.
What happens to the rods in each position?
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Which circuit shows a voltmeter measuring the p.d. across a resistor?
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A student has four pieces of resistance wire made of the same material. Each piece is connected in turn between the terminals X and Y in the circuit. In which wire is the current the largest? [Table_1]
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A student connects the circuit shown.
Which switches must be closed for both the bell to ring and the lamp to light?
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Two resistors are connected in parallel.
Which value could be the resistance of the combination?
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The circuit contains a variable potential divider PQ, a lamp and a voltmeter.
The sliding contact of the potential divider is moved towards end Q. What happens to the brightness of the lamp and what happens to the voltmeter reading?
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Four lamps are each labelled '60 W 230 V'. In which circuit are the lamps connected so that they operate at normal brightness?
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A fuse is used to protect an electric circuit. Which diagram shows where the fuse should be connected?
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A transformer has 2400 turns on its primary coil and 200 turns on its secondary coil.
What input voltage is needed to give an output voltage of 240V?
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A current-carrying coil in a magnetic field experiences a turning effect.
How can the turning effect be increased?
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A beam of cathode rays enters an electric field between two charged plates.
Which diagram shows a path that the rays could take?
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Radioactive carbon-14 decays into nitrogen by emitting a $\beta$-particle. The equation below represents the decay.
$$ \begin{align} ^{14}_{P}\text{C} \rightarrow \, ^{14}_{7}\text{N} + ^{0}_{Q}\beta \end{align} $$
What are the values of P and Q?
[Table_1]
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A student investigates how the radiation from a radioactive source changes with time.
The table shows the results from the detector used by the student.
[Table_1]
The experiment is repeated by many other students, who also measure the count rate every two minutes.
The half-life of the source is known to be exactly 2.0 minutes.
Why is the measured count rate always greater than half the previous value?
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The nuclide notation for radium-226 is $^{226}_{88}\text{Ra}$.
How many electrons orbit the nucleus of a neutral atom of radium-226?
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