No questions found
A length of cotton is measured between two points on a ruler.
When the length of cotton is wound closely around a pen, it goes round six times.
What is the distance once round the pen?
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583
Four balls with different masses are dropped from the heights shown.
Air resistance may be ignored.
Which ball has the greatest average speed?
552
519
508
A car takes 15 minutes to travel along a road that is 20 km long.
What is the average speed of the car?
575
566
555
A person steps onto a bathroom scales.
The bathroom scales records both mass and weight.
Which row shows the readings on the scales?
[Table_1]
549
591
590
Which properties of an object can be changed by a force?
599
506
594
A man holds a ladder in four different positions, pivoting around his shoulder.
The weight of the ladder causes a moment about the man's shoulder.
In which position is the moment greatest?
533
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541
A hole is drilled in a square tile. The diagram shows the tile hanging freely on a nail.
Where is the centre of mass of the tile?
599
501
563
Which method of drying clothes has the least impact on the environment?
528
584
554
A student does work by pulling a box across a horizontal floor.
She now pulls a second box along the same floor.
Which row indicates that the student is now doing twice as much work?
[Table_1]
518
589
510
A simple barometer includes a column of mercury. Which property of this column of mercury is used to give a measurement of atmospheric pressure?
581
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519
The diagram shows some liquid in a measuring cylinder.
The mass of the liquid is 16g.
What is the density of the liquid?
501
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599
Brownian motion of particles is observed.
Which statements describe the movement of the particles?
1. The particles all travel along a curved path.
2. The particles move randomly.
3. The particles all travel in the same direction.
507
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553
A pure liquid is left in an open beaker and some of the liquid molecules escape by evaporation.
Which statement about this process is correct?
509
571
569
A wooden wheel can be strengthened by putting a tight circle of iron around it.
Which action would make it easier to fit the circle over the wood?
564
502
575
A student wishes to calibrate a mercury-in-glass thermometer with a °C scale.
Which values should she use for the lower fixed point and for the upper fixed point?
[Table_1]
550
595
569
Which diagram shows how the thermal capacity of a silver object depends on its mass?
510
550
540
The diagram shows a pan used for cooking food.
Which row is correct for the materials used to make the base and the handle of the pan?
580
538
548
A saucepan of water is heated from its base on an electric hob.
After five minutes the water near the top of the saucepan is becoming hot.
What is the main process of heat transfer within the water?
526
565
584
The diagram shows a wave.
Which row is correct?
536
539
502
The diagram shows a ray of light passing from glass to air, at the critical angle.
Which angles are the angle of incidence and the angle of refraction?
523
548
520
Scout P signals to scout Q on the other side of a valley by using a mirror to reflect the Sun’s light.
[Image_1: Scout P, mirror, Sun's light, scout Q]
Which mirror position allows the Sun’s light to be reflected to scout Q?
600
517
589
It takes 0.24 seconds for a microwave signal to travel from a transmitting station on Earth to a satellite and then back to the station on Earth. Microwaves travel at $3.0 \times 10^{8} \text{m/s}$.
How far is the transmitting station from the satellite?
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508
The diagram shows the ranges of human hearing and of ultrasound waves.
To which characteristic of sound waves do the numbers on the diagram refer?
569
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509
A permanent magnet is placed close to a bar of soft iron.
What are the polarities of end P and of end Q?
519
536
508
The diagram shows a permanent bar magnet placed on a wooden table. A student draws arrows to show the direction of the magnetic field at four points.
Which arrow shows the direction of the magnetic field at that position?
581
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571
Which statement about electric charges is correct?
515
583
518
The diagrams show two readings on the same ammeter. Reading 1 is taken before the ammeter is connected in a circuit. Reading 2 shows the reading when the ammeter is connected in a circuit.
What is the current in the circuit?
542
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509
A student measures the potential difference across a device and the current in the device. Which calculation gives the resistance of the device?
549
592
580
A battery in an electric circuit is connected to a lamp.
Chemical energy in the battery is transferred to which other types of energy?
587
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583
Which component is represented by the symbol shown?
580
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559
A student sets up a circuit which she calls circuit 1. She records the value of the current $I_1$, and calculates the resistance $R_1$ of the circuit.
!
She then connects an identical resistor in parallel with the original resistor. She calls this circuit 2. She records current $I_2$ and calculates the total resistance $R_2$ of this circuit.
!
Which row correctly compares the two currents and the two resistances in the circuits?
[Table_1]
558
514
519
A student sets up this circuit.
What is the purpose of the circuit?
577
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583
The diagram shows two voltmeters P and Q connected to a potential divider.
The sliding connection at point X is moved towards the top of the diagram.
What happens to the reading on P and to the reading on Q?
515
527
542
The diagram shows a transformer.
Which materials are the most suitable for the core and for the coils?
585
519
527
A current-carrying conductor placed in a magnetic field experiences a force.
Which changes result in reversing the direction of the force?
600
598
600
A solenoid is connected to a battery.
Which statement about the magnetic field at the centre of the solenoid is correct?
501
574
530
In the atomic model, an atom consists of a central mass, orbited by much smaller particles.
What is the name of the central mass and of the orbiting particles?
[Table_1]
536
575
583
One isotope of lead is represented by the nuclide symbol $^{214}_{82}\text{Pb}$.
How many neutrons and how many protons does one nucleus of this isotope contain?
[Table_1]
574
582
532
Three sources of background radiation are listed.
1. cosmic rays
2. medical X-rays
3. radioactive emissions from radon gas from the ground
Which of these sources are naturally occurring?
532
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579
The rates of emission from four radioactive sources are measured at 20 minute intervals.
Each row in the table shows the results for one of the radioactive sources.
Which source has the longest half-life?
[Table_1: rate of emission/emissions per minute]
\begin{array}{c|c|c|c} & \text{time 0} & \text{time 20 min} & \text{time 40 min} \\ \hline A & 120 & 60 & 30 \\ B & 120 & 110 & 101 \\ C & 240 & 60 & 15 \\ D & 240 & 170 & 122 \end{array}
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