No questions found
Which unit is a unit of weight?
563
597
587
The graph represents the motion of a vehicle.
What is the distance travelled by the vehicle in 400 s?
574
503
563
The diagram shows a distance–time graph for an object moving in a straight line. What is the average speed between X and Y?
526
553
555
A space rocket travels to the Moon.
The acceleration of free fall is greater on the Earth than it is on the Moon.
How do the mass and weight of the space rocket on the Moon compare with their values on the Earth?
[Table_1]
597
576
553
A shopkeeper pours rice into a dish that hangs from a spring balance. He records the reading. A customer buys some pasta. The shopkeeper notices that the reading on the spring balance, with just pasta in the dish, is the same as it was with just rice in the dish. Which quantity must be the same for the rice and for the pasta?
515
513
560
A student determines the density of an irregularly shaped stone. The stone is slowly lowered into a measuring cylinder partly filled with water.
Which other apparatus does the student need to calculate the density of the irregularly shaped stone?
532
511
537
Four objects are moving. Which object has a zero resultant force acting on it?
520
506
526
The diagram shows a uniform metre rule. The rule is pivoted at its mid-point. A weight of 4.0 N is suspended from the rule at the 5 cm mark. The rule is held by a string at the 30 cm mark. The rule is in equilibrium.
What is the upward force that the string exerts on the rule?
555
531
543
An irregularly shaped metal plate is freely suspended from a point P and is in equilibrium, as shown. Point Q is vertically below P. Which statement about the position of the centre of gravity of the metal plate is correct?
587
593
537
Which row about the change of energy in the energy store must be correct? [Table_1]
582
577
581
A rock of weight 50 N falls a vertical distance of 7.0 m from rest. What is the change in the gravitational potential energy store of the rock?
513
546
557
A child runs up a set of stairs four times. The time taken for each run is recorded. Which time is measured when the child's useful power is greatest?
563
572
593
A woman has a weight of 600 N. She stands on a horizontal floor. The area of her feet in contact with the floor is 0.050 m^2.
What is the pressure she exerts on the floor?
594
528
521
Gases, liquids and solids are made up of small particles. Which row gives the relative separation of the particles? [Table_1]
598
579
522
Which statements about evaporation of water are correct?
1. Evaporation causes the remaining liquid to cool.
2. During evaporation, the more energetic particles escape from the surface of the liquid.
3. Evaporation only happens at 100°C.
527
521
577
Which surface is the worst absorber of infrared radiation?
551
593
530
The diagrams show graphs of displacement against time for four waves. All the graphs are drawn to the same scale. Which wave has the largest amplitude and the highest frequency?
572
527
562
A student draws a diagram to show the directions of a light ray reflecting off a plane mirror. What are the correct terms for the lines drawn? [Table_1]
540
592
531
An object O is placed at point P near to a thin converging lens. The diagram shows three rays from the top of O passing through the lens. Each point F is one focal length from the centre of the lens. Each point 2F is two focal lengths from the centre of the lens.
The object O is moved to point Q on the diagram.
Which type of image is produced when the object O is at point Q?
518
600
577
Which diagram shows the dispersion of white light by a glass prism?
517
596
585
Which statement is correct?
518
555
563
Student X fires a starting pistol which produces smoke and sound. Student Y is standing 100 m away and sees the smoke the instant it is produced. The speed of sound in air is 340 m/s.
What is the time delay between student Y seeing the smoke and hearing the sound?
579
505
595
An unmagnetised piece of soft iron is placed close to a strong permanent magnet, as shown.
What is the induced polarity of end X of the soft iron and in which direction does the magnetic force act on the soft iron?
537
550
592
A plastic rod is rubbed with a cloth.
The rod and the cloth both become charged as electrons move between them.
The rod becomes negatively charged.
Which diagram shows how the rod becomes negatively charged and shows the final charge on the cloth?
525
559
523
Which particles move to cause a current in a copper wire?
574
576
560
Four students draw a circuit diagram of the apparatus used to measure the resistance of resistor R. Which circuit is correct?
501
561
510
The battery on a bicycle is connected in parallel to its lamp and bell. The circuit includes two switches, \(S_1\) and \(S_2\). The cyclist closes \(S_1\) to light the lamp. She then also closes \(S_2\) to sound the bell. What happens to the current in the battery and the power output from the battery when the cyclist closes \(S_2\)?
559
520
524
Which symbol represents an electric heater?
502
536
560
A student connects the circuit shown. Which switches must be closed for the bell to ring without lighting the lamp?
597
566
515
A double-insulated electrical appliance must be connected safely to the electricity supply.
Which statement is correct?
523
516
535
A simple electric generator induces an electromotive force (e.m.f). Which modification would increase the induced e.m.f?
558
560
535
The diagram shows a vertical wire carrying a current $I$ placed between the poles of a magnet. What is the direction of the force on the wire exerted by the magnetic field?
590
585
560
What is an advantage of transmitting electricity at a high voltage?
590
574
502
How are positive and negative ions formed from atoms? [Table_1]
583
546
551
A nucleus of element X is represented as $^{56}_{26}\text{X}$. Which is an isotope of element X?
547
596
529
Which statement about the random decay of the nuclei in a sample of uranium-238 is correct?
529
501
535
The count rate due to a sample of a radioactive isotope is measured for 80 minutes. What is the half-life of the isotope?
[Table_1]
502
584
589
Which planet in our Solar System is nearest to the Sun and what is the nature of the planet? [Table_1]
593
506
572
The Sun consists mostly of two elements.
What are these two elements?
580
564
594
Which statement about the Milky Way is correct?
537
588
555
