No questions found
A lump of modelling clay is moved from a small measuring cylinder to a large measuring cylinder that has twice the diameter.
The reading on the small measuring cylinder goes down by 20 cm³.
By how much does the reading on the large cylinder go up?
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513
544
The graph shows the motion of a car.
Which row correctly describes this motion?
514
517
502
A man stands next to a railway track.
A train travelling at 40 m/s takes 2.0 s to pass the man.
What is the length of the train?
586
574
553
Four students are given two different objects, P and Q.
Each student measures the mass of P and the weight of Q.
The results are shown in the table.
Which row gives a possible result?
[Table_1]
582
593
572
A measuring cylinder contains $30\ \text{cm}^3$ of a liquid.
Some more of the liquid is added until the liquid level reaches the $50\ \text{cm}^3$ mark.
The reading on the balance increases by 30 g.
What is the density of the liquid?
523
542
581
A beam is pivoted at one end, as shown.
The beam weighs 6.0 N and its weight acts at a point X 40 cm from the pivot.
A force of 4.0 N is applied to the beam causing it to balance horizontally.
In which direction and where is the 4.0 N force applied?
560
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572
The diagram shows two identical bars of negligible weight. All the forces acting on each bar are marked.
Which bars are in equilibrium?
515
571
579
Four objects have different base areas and their centres of mass are in different positions. Which object is most stable? [Table_1]
530
512
520
In which form is energy stored by stretching a spring?
532
550
521
A force of 14 N is applied to the head of a nail. This causes a pressure of 25 N/mm^2 at the tip of the nail.
What is the cross-sectional area of the tip of the nail?
587
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567
The diagram shows a deep reservoir formed by a dam.
On what does the pressure at X depend?
531
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521
The properties of two states of matter are listed.
state 1 The molecules move quickly and randomly. There is a large distance between the molecules.
state 2 The molecules vibrate about fixed positions. The molecules are closely packed together.
What are states 1 and 2?
[Table_1]
508
549
513
A gas in a container is cooled but the volume of the gas does not change.
Which row describes the changes in the pressure of the gas and the average kinetic energy of the gas particles?
[Table_1]
576
593
558
The iron cylinder of an engine is to be fitted into a piece of aluminium.
The outside diameter $M$ of the iron cylinder is slightly larger than the diameter $N$ of the hole in the aluminium.
What is the best action to fit the cylinder into the aluminium?
574
565
555
A solid in a closed container is heated until it completely melts. Which diagram shows the shape and the volume of the solid before and after heating?
559
500
569
A glass contains an iced drink on a warm and humid day. Water starts to form on the outside of the glass.
What is the name of the effect by which the water forms?
563
527
509
In which situation is the main transfer of thermal energy by convection?
589
569
518
A metal container is the shape of a hollow cube.
The four sides of the container have different surface finishes.
Which side is the best emitter of radiation?
524
591
578
The diagram shows a wave.
Which row is correct?
591
553
508
A girl is sitting on a rock in the sea looking at passing waves. She notices that five complete wavelengths pass her in 20 s.
What is the frequency of this wave?
555
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551
A ray of light passes from air through a sheet of glass and out the other side, as shown.
Which two angles are equal to each other?
599
582
588
An object is placed in front of a converging lens. The lens has a focal length $f$.
In which labelled position should the object be placed in order to produce a real image that is smaller than the object?
518
572
548
Which statement correctly compares radio waves and X-rays?
551
501
564
Student 1 and student 2 stand 170 m apart as shown.
Student 1 fires a starting pistol. Student 2 hears the sound twice, once by the direct route and once from the reflection from the wall.
The speed of sound in air is 340 m/s.
What is the interval between hearing the two sounds?
562
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589
A student attempts to make a permanent magnet by hammering metal bars of the same size in the same magnetic field. In which case is the strongest permanent magnet produced?
541
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557
A student places object X on a balance. The student first brings magnet Y and then magnet Z close to object X and observes the readings on the balance. The distance between Y and X is the same as the distance between Z and X.
The diagram shows the results of the experiment.
Which statement explains the results?
532
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508
A girl rubs a plastic rod with a cloth. The plastic rod then repels a positively charged object. Which row is correct? [Table_1]
502
553
559
Which circuit shows a meter being used correctly to measure the current in a resistor?
540
522
580
A resistor and a battery are connected in series.
The value of the resistor is 20Ω.
The potential difference (p.d.) of the battery is 4.0V.
What is the current in the resistor?
541
528
529
The circuit shown includes a cell.
Which other components does the circuit contain?
563
554
561
Two 4\(\Omega\) resistors are connected in parallel.
What is the combined resistance between X and Y?
557
529
538
Which statement about identical lamps in a parallel circuit is not correct?
504
569
508
Why is a fuse used in an electrical circuit?
570
568
586
The information describes the currents in three different circuits.
Circuit P has a steady current of 0.52 A in one direction.
Circuit Q has a current that continually changes between 0.25 A and 0.35 A but is always in the same one direction.
Circuit R has a peak current of 0.52 A that changes direction periodically.
Which circuits contain a direct current?
592
600
553
Which transformer can change a 240V a.c. input into a 15V a.c. output?
517
598
589
The diagram shows a wire hanging from a metal loop P and dipping into a bath of mercury.
The wire is hanging vertically between the N and S poles of a magnet.
The loop P is then connected to the positive terminal of a battery and the mercury is connected to the negative terminal.
The wire swings out of the page.
In which direction does the wire move when P is connected to the negative terminal of the battery and the mercury is connected to the positive terminal?
569
544
544
The atoms of an element can exist as different isotopes.
What is the difference between atoms of different isotopes of the same element?
502
582
583
A radioactive source has a half-life of 0.5 hours.
A detector near the source shows a reading of 6000 counts per second.
Background radiation can be ignored.
What is the reading on the detector 1.5 hours later?
510
503
586
Which statement explains why radioactive materials need to be handled carefully?
533
589
520
