No questions found
Which piece of apparatus is used to measure the length of a copper rod of length approximately 2 cm?
539
516
598
The speed–time graph shows the motion of an object.
How far does the object travel at constant speed?
512
511
573
A rock falls off a cliff onto a beach. The effect of air resistance on the rock is negligible.
Which row describes the acceleration and speed of the rock as it falls?
[Table_1]
592
570
600
Two rectangular blocks consist of different materials. Four different methods are suggested to compare the two masses.
1. Compare the accelerations with which they fall freely.
2. Compare the values of their lengths \( \times \) breadths \( \times \) heights.
3. Hang each in turn from the same spring. Compare the extensions.
4. Place one in the right-hand pan of a beam balance and the other in the left-hand pan.
Which methods give a comparison of the two masses?
545
520
517
A measuring cylinder containing 50 cm^3 of water is put on a balance. [Image_1: Diagram of measuring cylinder] A solid object is put in the cylinder and the water level rises to 75 cm^3. What is the density of the object?
528
566
517
A cyclist is travelling in a straight line along a horizontal road at a constant speed. A constant driving force $F$ acts on the cyclist in the forward direction as shown.
Which statement about the magnitude of the frictional forces acting on the cyclist is correct?
551
505
544
A beam is pivoted at P. A force is applied to the beam. Which distance is multiplied by the force to give the moment of the force about P?
592
581
520
The diagram shows an unbalanced rod. Two loads X and Y can be moved along the rod.
The rod turns in a clockwise direction, as shown.
Which action could make the rod balance?
520
550
531
It is important that an electric table lamp with a lamp shade does not get knocked over easily. Which statement is correct?
552
559
556
A bicycle braking system transfers energy from a kinetic energy store to an internal energy store.
A motor converts energy from a chemical energy store (battery) to a kinetic energy store.
What enables these energy transfers?
[Table_1]
508
573
569
A toy car is pushed a distance of 2.4 m with a force equal to 460 N. How much energy is transferred?
589
540
589
The engine of a motor vehicle develops a large power. Which statement is correct?
557
543
581
A solid cube has sides 0.50m long and a mass of 120kg. It stands on the ground on one face. Which pressure does the cube exert on the ground?
520
532
512
What is the lowest possible temperature (absolute zero) and what happens to the energy of particles at this temperature? [Table_1]
576
532
599
Which statement about the particles of a substance after condensation is correct?
598
582
508
The diagram shows a flask designed to reduce the loss of thermal energy from a hot liquid. Which methods of thermal energy transfer are the silvered walls designed to reduce?
516
548
571
A drop of water from a tap falls onto the surface of some water of constant depth. Water waves spread out on the surface of the water. Which statement is correct?
591
528
587
The optical image formed by a plane mirror is the same size as the object. Which row describes the other characteristics of the optical image formed? [Table_1]
582
576
562
The diagram shows a partly completed scale drawing of an upright object placed 3 cm in front of a thin converging lens of focal length 2 cm. What is the nature of the image formed by this lens?
584
538
597
A narrow beam of white light passes through a prism and is dispersed into a spectrum. Which row is correct? [Table_1]
574
542
584
Which row matches a region of the electromagnetic spectrum to one of its uses? [Table_1]
515
587
546
A ship sounds its horn when it is 790 m from a cliff. A passenger on the ship hears the echo 4.8 s later. What is the speed of the sound?
507
511
586
Which row gives the metal used to make the core of an electromagnet and one property of the electromagnet? [Table_1]
564
564
599
A plastic rod and a dry cloth are uncharged. The rod is now rubbed with the cloth and they both become charged. The rod becomes negatively charged because some charged particles move from the cloth to the rod. What is the charge on the cloth and which particles moved in the charging process?
507
585
504
A power supply of electromotive force (e.m.f.) 12 V is connected across a 3 \Omega resistor. Which ammeter is most suitable to measure the current in the resistor?
588
592
537
The cost of electrical energy is $0.25 for each unit of 1 kWh. A 2200 W heater is switched on for 48 minutes.
What is the cost of this use?
515
567
563
The diagram shows six different electrical circuit components. Which circuit symbol is not present in the diagram?
552
568
578
The circuit shown contains three switches and four lamps P, Q, R, and S. Which switches must be closed to light only lamps P and R?
541
586
508
An electric heater has a metal frame. The heating element is connected to the live and neutral wires of an a.c. supply. The metal frame is connected to the earth wire. Which row gives the correct connections for the fuse and the switch? [Table_1]
553
552
533
Which electrical device uses the turning effect produced by a current-carrying coil in a magnetic field?
541
584
569
Four appliances all use an electric current to operate. Which appliance uses the magnetic effect of the current?
521
533
576
A student makes four different types of transformer. She counts the number of turns on the primary and secondary coils. She labels each transformer as either step-up or step-down. Which row shows the correct labels? [Table_1]
535
506
500
How is electricity transmitted over large distances and why is it transmitted in this way? [Table_1]
583
545
588
An atom of an element contains electrons, neutrons and protons. Which particles are found in the nucleus?
580
506
508
A nuclide of chlorine has the symbol shown. $$^{35}_{17}Cl$$ What is the nucleon number of this nuclide of chlorine?
586
567
539
What is a major source of background radiation?
563
529
558
The graph shows the radioactive decay curve of a substance. What is the half-life of this substance?
500
580
530
Which row about the orbits of the Earth and the Moon is correct? [Table_1]
521
576
558
Which description of a galaxy is correct?
569
563
523
Light from distant stars is redshifted.
What is redshift?
540
558
567
