No questions found
A student is taking some measurements.
Which measurement is taken directly using a micrometer screw gauge?
567
530
580
Which graph represents an object that is moving at constant speed?
554
586
582
In which situation does object X have a greater mass than object Y?
574
590
547
Which substance in the table has the lowest density?
[Table showing substances, mass in g, and volume in cm^3]
547
529
548
Three simple machines are shown.
Which machines are an application of the moment of a force?
507
522
509
A spring, which obeys Hooke's law, has an unstretched length of 10 cm.
A load of 20 N is suspended from the spring.
The new length of the spring is 36 cm.
What is the spring constant $k$ of the spring?
512
571
570
A rocket is launched upwards from the surface of the Moon.
Hot gases are ejected downwards over a very short period of time.
Which statement is not correct?
567
537
585
Electrical energy may be obtained from nuclear fission. In which order is the energy transferred in this process?
539
537
565
A box of mass $m$ slides down a slope of length $l$ against a frictional force $F$. It descends a vertical height $d$.
As the box slides down the slope, it loses gravitational potential energy and it does work against the friction.
Which row gives the loss in gravitational potential energy and the work done against friction?
593
585
572
A rope, connected to a pulley system and motor, is used to lift different objects through different distances. The time taken to lift each object is the same. The diagrams are not to scale.
Which motor requires the greatest power?
513
544
513
Which equation can be used to calculate the pressure at a depth $h$ beneath the surface of a liquid?
514
554
500
A liquid is evaporating. The liquid is not boiling.
Which statement about the liquid is correct at an instant in time?
506
568
505
A gas is contained in a sealed container in a laboratory. The temperature of the gas increases. What happens to the average speed and what happens to the total kinetic energy of the gas molecules?
594
553
513
An aluminium block has a mass of 200 g.
The specific heat capacity of aluminium is 900 J/(kg °C).
How much energy is needed to increase the temperature of the block from 20°C to 110°C?
578
537
502
The diagram shows the apparatus used to measure the specific latent heat of vaporisation of water.
After the water begins to boil, 110 g of water is converted to steam in 120 s.
Using these results, what is the value of the specific latent heat of vaporisation of water?
554
570
534
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?
[Table_1]
584
523
550
The diagram shows the pattern of water waves as they pass through a narrow gap.
Which row names the process shown and describes the effect of using a wider gap?
561
531
513
Which row is not correct for a wave on the surface of water?
[Table_1]
588
535
557
The diagram shows how a ray of light refracts when going from air to Perspex.
The critical angle of Perspex is $c$.
Which expression is correct?
500
572
560
The diagram shows a ray of light in air incident on a glass block. Some of the light is refracted and some of the light is reflected. Two angles, $p$ and $q$, are marked on the diagram.
Which row gives the angle of incidence and states whether total internal reflection occurs?
[Table_1]
574
579
559
The letter F is reflected in a mirror.
What does the optical image look like?
510
599
561
The Sun emits infrared radiation and light.
Light from the Sun reaches the Earth in 8 minutes.
Which row gives correct information about the infrared radiation?
[Table_1]
546
577
505
Which statement about electromagnetic waves is not correct?
599
563
577
Which diagram shows the electric field pattern between two oppositely charged parallel metal plates?
512
561
569
Which circuit symbol represents a component used to measure electric current?
530
570
546
The graph shows the current–voltage characteristic for a conductor.
Where on the graph can Ohm’s law be applied to the conductor?
570
529
557
The diagram shows a circuit containing two resistors of resistance 1.0Ω and 2.0Ω. A voltmeter is connected across the 1.0Ω resistor by connecting P to X. The reading on the voltmeter is 6.0V.
P is moved to point Y in the circuit. What is the new reading on the voltmeter?
523
522
521
There is a current $I$ in a resistor. The potential difference (p.d.) across the resistor is $V$.
Which other physical quantity is needed to be able to determine the energy transferred $W$ by the resistor?
571
575
548
The diagrams show pairs of circuits containing logic gates. In which diagram does the lower circuit of the pair behave differently from the upper circuit?
563
561
519
Several cells are connected in series, as shown.
What is the combined electromotive force (e.m.f.) of the cells?
560
524
526
Two resistors, with resistances $R_1$ and $R_2$, are connected in parallel. The resistance $R_1$ is greater than the resistance $R_2$. What is the resistance of the parallel combination?
536
558
564
The diagram shows a motor connected to an a.c. supply. The circuit is incomplete.
Which device needs to be connected between point X and point Y to prevent the wires from overheating if a fault in the motor causes the current to get too high?
501
513
599
The diagram shows a wire between two magnets. An electromotive force (e.m.f.) is induced in the wire when it is moved up between the two magnets.
Four tests are done.
1. The direction of movement of the wire is reversed.
2. The direction of the magnetic field is reversed.
3. The wire is moved more quickly.
4. The magnetic field strength is decreased.
Which tests will induce a smaller e.m.f. in the wire?
571
541
553
Four positions of a current-carrying coil in a magnetic field, as in a d.c. motor, are shown. In diagrams 2 and 4, the coil is at an angle of 45° to the field lines.
Which row is correct?
[Table_1]
579
538
507
The diagram shows the magnetic field due to a current in a solenoid.
The direction of the current is reversed.
Which row describes the effect that this has on the magnitude and on the direction of the magnetic field?
[Table_1]
561
578
553
The nucleus of an americium atom contains 146 neutrons and 95 protons. It decays by emitting an $\alpha$-particle.
How many neutrons and how many protons remain in the nucleus when this form of americium decays?
[Table_1]
533
513
532
A sample of americium decays and changes into neptunium. The half-life of americium is 432 years.
Which fraction of the americium will remain after 1728 years?
569
534
510
The graph shows the decay curves of four different radioactive isotopes. Which isotope has the largest half-life?
558
570
531
The diagrams show \( \alpha \)-particles and \( \beta \)-particles passing through an electric field. Which diagram shows the correct paths of the \( \alpha \)-particles and \( \beta \)-particles?
508
528
514
