Physics MCQs First Trimester 2024-2025 AL JOUF INT. SCHOOL PDF

‫مدرسه الجوف العالمية‬ AL JOUF INTERNATIONAL SCHOOL UNDER THE GUIDANCE OF THE MINISTRY OF EDUCATION DEPARTMENT OF FOREIGN EDUCATION MIN...

‫مدرسه الجوف العالمية‬ AL JOUF INTERNATIONAL SCHOOL UNDER THE GUIDANCE OF THE MINISTRY OF EDUCATION DEPARTMENT OF FOREIGN EDUCATION MIN 1st TRIMESTER 2024-25 REVISION WORKSHEET (CHAPTER 1 – 7) Grade: VIII Subject: Science Name of the student: __________________________ Topic: 80 MCQ’s Class Worksheet#1 1 A student measures the volume of a small, irregularly shaped stone. Which apparatus must be used? A a ruler and a measuring cylinder containing water B a measuring cylinder containing water only C a ruler and an empty measuring cylinder D a ruler only 2 The graph shows how the speed of a car changes during a period of 50 s. 25 speed m / s 20 15 10 5 0 0 5 10 15 20 25 30 35 40 45 50 time / s Which row gives the car’s greatest acceleration and the car’s greatest deceleration? greatest greatest acceleration deceleration m / s2 m / s2 A 0.75 1.0 B 0.75 3.0 C 1.3 1.0 D 1.3 3.0 3 Which quantity is a vector? A electric field strength B energy C mass D temperature 4 An athlete runs 2.4 km in 12 minutes. What is the average speed of the athlete? A 0.20 m / s B 3.3 m / s C 29 m / s D 200 m / s 5 Which statement about gravitational field strength g is correct? 6 Which property of an object cannot be changed by applying forces? A mass B shape C speed D volume 7 A small ball of mass 0.10 kg travels horizontally at a speed of 600 m / s. It strikes a stationary wooden block of mass 1.9 kg resting on a frictionless horizontal surface. The ball stays in the block. What is the speed of the ball and the block immediately after the impact? A 30 m / s B 32 m / s C 60 m / s D 130 m / s 8 An object taken underwater will be damaged if the total pressure acting on it is greater than 2.1 MPa. What is the maximum depth that the object can be taken underwater before it breaks? atmospheric pressure = 101 000 Pa density of water = 1000 kg / m3 A 10.3 m B 204 m C 214 m D 225 m 9 A piece of solid metal melts to become a liquid. How do the particles of metal or their behaviour change? A They increase in size. B They move around each other. C They move much further apart. D They vibrate more about their fixed positions. 10 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. A 1 and 3 B 1 only C 2 and 3 D 2 only 11 The diagram shows a quantity of gas trapped in a cylinder. The piston is pushed in slowly and the gas is compressed. The temperature of the gas does not change. gas piston pushed in piston Which graph shows the relationship between the pressure and the volume of the gas? A B pressure pressure 0 0 0 volume 0 volume C D pressure pressure 0 0 0 volume 0 volume 12 A fixed mass of air in a cylinder is compressed by a piston so that the volume of the air decreases at constant temperature. How do the air particles now collide with the cylinder walls? A less often with a greater velocity B less often with the same velocity C more often with a greater velocity D more often with the same velocity 13 A student wishes to measure accurately the volume of approximately 40 cm3 of water. She has two measuring cylinders, a larger one that can hold 100 cm3, and a smaller one that can hold 50 cm3. The water forms a meniscus where it touches the glass. Which cylinder and which water level does the student use to ensure an accurate result? cylinder water level A larger one bottom of meniscus B larger one top of meniscus C smaller one bottom of meniscus D smaller one top of meniscus 14 The motion of an object is represented by the speed–time graph shown. Which quantity is equal to the area under the graph? A acceleration B average speed C distance travelled D kinetic energy 15 An astronaut of mass 80 kg is standing on a planet with gravitational field strength g = 3.8 N / kg. What is the weight of the astronaut on this planet? A 780 N B 300 N C 210 N D 21 N 16 A sealed container of volume 2000 cm3 contains air at high pressure. The container is placed on a top-pan balance. The balance reads 200.00 g. All the air is removed by a vacuum pump and the balance reading changes to 196.00 g. What was the density of the pressurised air? A 0.00200 g / cm3 B 0.098 g / cm3 C 4.00 g / cm3 D 10.2 g / cm3 17 Each diagram shows three forces on a beam. In which situation is it possible for the three forces shown to be in equilibrium? A B C D 18 A gymnast jumps down from a high piece of apparatus. She gradually bends her knees as she lands. Which effect does this have? A She will have a smaller change of momentum as she lands. B She will lose less kinetic energy as she lands. C She will exert a smaller impulse on the ground as she lands. D She will experience a smaller force from the ground as she lands. 19 The table gives four energy resources and states whether the main source of energy for the resource is the Sun. Which row is correct? main source of energy resource energy is the Sun A geothermal yes B oil no C water held behind a dam yes D wind no 20 The equation p = gh can be used for a liquid. What is the meaning of the term  ? A pressure due to the liquid B density of the liquid C total pressure due to the liquid and the air above the liquid D density of an object placed in the liquid 21 What are the correct terms for each change of state? liquid to solid liquid to gas A solidification condensation B melting condensation C solidification evaporation D melting evaporation 22 Extremely small pollen grains in water are viewed through a microscope. The grains are seen to move continually and randomly. What is the reason for this random movement? A The grains are moved by randomly moving water molecules. B The grains are moved by random convection currents in the water. C The grains are moved by random rays of light reflecting off them. D The grains are moved by the random motion of their own atoms. 23 In which row are quantities correctly categorised into scalar quantities and vector quantities? scalar quantities vector quantities A mass and energy weight and acceleration B gravitational field strength and force and electric field strength time C speed and momentum distance and force D distance and energy velocity and temperature 24 Which name is given to the quantity of matter in an object? A density B mass C volume D weight 25 A body is moved from place X to place Y where the gravitational field strength is different. What happens to its mass and to its weight due to the move? mass weight A changes changes B changes stays the same C stays the same changes D stays the same stays the same 26 The mass of an object is 2.5 kg. The volume of the object is 480 cm3. What is the density of the object? A 5.2  10–3 g / cm3 B 5.2 g / cm3 C 190 g / cm3 D 1.2  103 g / cm3 27 Four objects each have two forces acting on them. Which object is in equilibrium? A B C D 1.0 N 1.0 N 1.0 N 1.0 N 1.0 N 1.0 N 1.0 N 1.0 N 28 A ball of mass m falls vertically and hits a hard surface. Its speed on hitting the surface is v1. It rebounds vertically upwards with speed v2. What is the change in momentum of the ball? A mv1 B mv2 C m(v1 + v2) D m(v2 – v1) 29 A stone is dropped from a tall tower and falls a distance of 50 m to the ground. The stone has a mass of 3.0 kg. At which speed does the stone hit the ground? A 17 m / s B 31 m / s C 54 m / s D 150 m / s 30 A coal-fired power station generates electricity. Coal is burned and the energy released is used to boil water. The steam from the water makes the generator move and this produces electricity. Which row gives the name of the energy store in the coal and the energy store of the moving generator? coal generator A chemical hydroelectric B chemical kinetic C geothermal hydroelectric D geothermal kinetic 31 A man puts some ice into a glass of water on a warm day. After a short time, he notices that the ice disappears and that water droplets appear on the outside of the glass. ice droplets of water Which two changes of state are taking place? A condensation and freezing B condensation and melting C boiling and melting D freezing and evaporation 32 Gas of volume 200 cm3 is trapped inside a container by a piston. The piston is pushed to the right and the volume of the gas decreases to 100 cm3. The temperature of the gas remains constant. trapped gas piston container Which row states the effect that this has on the kinetic energy of the gas particles and the force per unit area exerted by the particles colliding with the inside walls of the container? kinetic energy force per unit area A doubles doubles B doubles stays the same C stays the same doubles D stays the same stays the same 33 A student has a measuring cylinder containing water and also has a balance. Which of these could she use to find the volume of a small metal sphere? She has no other apparatus. A either the measuring cylinder containing water or the balance B the measuring cylinder containing water only C the balance only D neither the measuring cylinder nor the balance 34 The diagram shows a solid object on a flat surface, with two forces acting on the object. 3N 4N What is the resultant force on the object? A 1 N to the left B 1 N to the right C 7 N to the left D 7 N to the right 35 A ball is falling towards the ground. Which transfer between energy stores is taking place? A elastic energy to kinetic energy B gravitational potential energy to elastic energy C gravitational potential energy to kinetic energy D kinetic energy to gravitational potential energy 36 Which row contains one scalar quantity and one vector quantity? quantity 1 quantity 2 A energy velocity B mass time C momentum weight D distance temperature 37 The table gives data about four liquids, W, X, Y and Z. liquid mass / g volume / cm3 W 10 10 X 20 15 Y 30 50 Z 40 50 None of the liquids mixes with any of the other liquids. All the liquids are put in the same container and settle to form four separate layers. Which statement is correct? A W forms the layer below X. B X forms the top layer. C Y forms the bottom layer. D Z forms the layer below Y. 38 A weightless beam is balanced on a pivot as shown. Forces P, Q and R act on the beam. Q c b a weightless beam d pivot P R Which equation is correct? A (P  c) + (Q  b) = (R  a) B (P  c) – (Q  b) = (R  a) C (P  d) + (Q b) = (R  a) D (P  d) – (Q  b) = (R  a) 39 An object is moving at +3.0 m / s. force acts on the object. After a time, the object is moving at –4.0 m / s. The mass of the object is 5.0 kg. What is the change in momentum of the body? A –35 kg m / s B –5.0 kg m / s C +5.0 kg m / s D +35 kg m / s 40 The diagram shows a column of liquid. The pressure, due to the liquid, at the bottom of the liquid is 6000 N / m2. What is the density of the liquid? A 310 kg / m3 B 1200 kg / m3 C 29 000 kg / m3 D 120 000 kg / m3 41 Very small values of which quantity are measured using a micrometer screw gauge A time B pressure C moment D distance 42 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? A 20 m B 38 m C 40 m D 80 m © UCLES 2022 0625/22/M/J/22 43 Which quantity is equal to acceleration? A area under a distance–time graph B area under a speed–time graph C gradient of a distance–time graph D gradient of a speed–time graph 44 On the Moon, all objects fall with the same acceleration. Which statement explains this? A On the Moon, all objects have the same weight. B The Moon has a smaller gravitational field strength than the Earth. C The weight of an object is directly proportional to its mass. D The weight of an object is inversely proportional to its mass.  www.dynamicpapers.com 45 A measuring cylinder contains 30 cm3 of a liquid. cm3 50 40 30 20 10 balance Some more of the liquid is added until the liquid level reaches the 50 cm3 mark. The reading on the balance increases by 30 g. What is the density of the liquid? A 0.60 g / cm3 B 0.67 g / cm3 C 1.5 g / cm3 D 1.7 g / cm3 46 An object moves at constant speed around a circular path. Which statement is correct? A A resultant force acts on the object outwards from the centre of the circle. B A resultant force acts on the object in the direction it is travelling. C A resultant force acts on the object towards the centre of the circle. D There is no resultant force acting on the object because it is moving at constant speed. © UCLES 2022 0625/22/M/J/22 [Turn over  www.dynamicpapers.com 47 A beam is pivoted at one end, as shown. 40 cm X beam pivot 6.0 N 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? A vertically downwards at 20 cm to the left of X B vertically downwards at 20 cm to the right of X C vertically upwards at 20 cm to the left of X D vertically upwards at 20 cm to the right of X 48 The diagram shows two forces acting at right angles to each other. scale 1.0 N 3.0 N 4.0 N What is the resultant of the two forces? A 1.0 N B 5.0 N C 7.0 N D 12.0 N 49 Which statement describes the impulse acting on an object? A Impulse is the change in kinetic energy of the object. B Impulse is the change in momentum of the object. C Impulse is the rate of change of force acting on the object. D Impulse is the rate of change of momentum of the object. © UCLES 2022 0625/22/M/J/22  www.dynamicpapers.com 50 A ball of mass 0.16 kg is moving forwards at a speed of 0.50 m / s. A second ball of mass 0.10 kg is stationary. The first ball strikes the second ball. The second ball moves forwards at a speed of 0.50 m/s. What is the speed of the first ball after the collision? A 0.0 m / s B 0.19 m / s C 0.31 m / s D 0.50 m / s 51 A tennis ball is dropped from position 1. It falls vertically onto a hard surface at position 2. tennis ball position 1 position 2 Which energy changes have taken place between position 1 and position 2? A gravitational potential → kinetic → chemical B gravitational potential → kinetic → elastic (strain) C kinetic → gravitational potential → chemical D kinetic → gravitational potential → elastic (strain) 52 A boy holds onto a bar and pulls himself up until his chin is level with the bar. He raises himself through 40 cm in 0.5 s. The weight of the boy is 500 N. What is the average power he produces as he raises himself? A 40 W B 400 W C 4000 W D 40 000 W © UCLES 2022 0625/22/M/J/22 [Turn over 53 The diagram shows a deep reservoir formed by a dam. water dam X On what does the pressure at X depend? A the depth of the water at X B the length of the reservoir C the surface area of the water D the thickness of the dam wall 54 The conditions of a sample of gas change in two stages. stage 1 increase of temperature at constant volume stage 2 increase of volume with no further change of temperature Which row about the pressure after each stage is correct? stage 1 stage 2 pressure compared pressure compared to to original pressure pressure after stage 1 A decreases decreases B decreases increases C increases decreases D increases increases 55 Small pollen particles are suspended in water. When viewed with a microscope, the pollen particles can be seen to be moving about irregularly. What causes this movement? A The pollen particles are being bombarded by the heavier particles of the water. B The pollen particles are being bombarded by the lighter particles of the water. C The temperature of the water is higher than that of the pollen particles. D The temperature of the water is lower than that of the pollen particles.  www.dynamicpapers.com 7 The energy 56 Which diagramresource shows a has liquid-in-glass the Sun as thermometer. its only source of energy? A geothermal 0 10 20 30 40 50 60 70 80 90 100 B nuclear Which C oil physical property of the thermometer is used to measure temperature? D tidal A expansion of glass B expansion of liquid 57 18 A glass contains an iced drink on a warm and humid day. Water starts to form on the outside of theCglass. mass of glass D mass of liquid What is the name of the effect by which the water forms? A Condensation B conduction C convection D evaporation 58 2 The diagrams show distance–time graphs for four objects. Which graph represents an object moving with an increasing speed? A B distance distance 0 0 0 time 0 time C D distance distance 0 0 0 time 0 time 3© UCLES 2021 59 An object has a weight of 6.4 N on 2022 [Turn the Earth where the gravitational field strength 0625/22/M/J/22 0625/21/O/N/21 is 10over N / kg. 59 An object has a weight of 6.4 N on the Earth where the gravitational field strength is 10 N / kg. Which row states the mass and the weight of the object on the Moon where the gravitational field strength is 1.6 N / kg? weight on mass / kg the Moon / N A 0.64 1.0 B 0.64 6.4 C 4.0 1.0 D 4.0 6.4 60 4Which substance in the table has the lowest density? www.dynamicpapers.com 3 substance mass / g volume / cm3 A nylon 1.2 1.0 B cotton 1.5 1.0 C olive oil 1.8 2.0 D water 2.0 2.0 61 5A 20 m long, uniform bridge of weight 100 kN is supported at each end by pillars, as shown. T1 T2 20 m bridge pillar 24 kN pillar 100 kN The pillars exert forces T1 and T2 on the ends of the bridge. What are the values of T1 and T2 when a van of weight 24 kN is on the bridge, 5 m from the left-hand pillar? T1 / kN T2 / kN A 56 68 B 62 62 C 68 56 D 74 50 62 6A 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? A 0.56 N / cm B 0.77 N / cm C 1.3 N / cm D 1.8 N / cm © UCLES 2021 0625/21/O/N/21 [Turn over  www.dynamicpapers.com 4 63 7What is the relationship between the impulse acting on an object and the change in momentum of the object? A impulse = change in momentum B impulse = change in momentum  time C change in momentum impulse = time D change in momentum impulse = mass 64 8Electrical energy may be obtained from nuclear fission. In which order is the energy transferred in this process? A nuclear fuel → generator → reactor and boiler → turbines B nuclear fuel → generator → turbines → reactor and boiler C nuclear fuel → reactor and boiler → generator → turbines D nuclear fuel → reactor and boiler → turbines → generator 65 9A motor of power P exerts a force F on an object. The object moves a distance d during the time t that the force acts. Which equation is used to calculate the time t ? F t = Fd t = Pd A t= B C D t= P Pd P F Fd 66 10 A scientist uses an electric motor to lift a load through a vertical distance of 2.0 m. He then increases the input power to the motor and repeats the experiment. The efficiency of the motor does not change. Which row correctly describes the effect that this has on the useful work done lifting the load and the time taken to lift it? work done time taken A decreases decreases B stays the same decreases C decreases stays the same D stays the same stays the same © UCLES 2021 0625/21/O/N/21  www.dynamicpapers.com 5 67 11 Four containers are filled to the top with the same liquid. The base of each container is circular. Which container has the greatest pressure exerted by the liquid at its base? A B C D A child 68 12 pushes A liquid a toy car along is evaporating. a horizontal The liquid surface and then releases it. What is the main is not boiling. energy transfer as the car slows down? Which statement about the liquid is correct at an instant in time? A from chemical to thermal A` Any molecule can escape, and from any part of the liquid. B from chemical to kinetic B Any molecule can escape, but only from the liquid’s surface. CC from Onlykinetic to gravitational molecules with enough(potential) energy can escape, and only from the liquid’s surface. DD from Onlykinetic molecules with enough energy can escape, but from any part of the liquid. to thermal 69 13 28 The diagram shows two cylinders connected by a narrow tube fitted with a ta p. tap 80 cm3 20 cm3 One cylinder contains 80 cm3 of gas at a pressure of 2.0  105 Pa. The other cylinder contains a vacuum. The volume of the evacuated cylinder is 20 cm3. The tap is opened so that the gas can flow to fill both cylinders. The temperature of the gas remains constant. What is the new pressure of the gas? A 0.50  105 Pa B 1.6  105 Pa C 2.5  105 Pa D 8.0  105 Pa © UCLES 2021 0625/21/O/N/21 [Turn over  www.dynamicpapers.com 2 70 29 1A student investigates a pendulum. He measures the time for the pendulum to complete 20 oscillations. He repeats the experiment three more times. The readings are shown. time for experiment 20 oscillations / s 1 17.6 2 19.8 3 17.6 4 18.6 30 What is the average period of the pendulum? A 0.88 s B 0.92 s C 17.6 s D 18.4 s 71 2A tennis ball falls from the upstairs window of a house. 31 What can be said about the acceleration of the ball if air resistance is ignored? A It depends on the density of the ball. B It depends on the mass of the ball. C It increases as the ball falls. D It stays the same as the ball falls. A car joins a road at a speed of 14 m / s and accelerates at 4.0 m / s2 for 5.0 seconds. 72 332 What is the final speed of the car? A 18 m / s B 20 m / s C 32 m / s D 34 m / s © UCLES 2022 0625/22/F/M/22  www.dynamicpapers.com 3 73 4The gravitational field strength is 8.8 N / kg on Venus and 3.8 N / kg on Mars. An object has a weight of 42 N on Venus. What are the mass and the weight of the object on Mars? mass / kg weight / N A 4.8 18 B 4.8 42 C 11 42 D 11 97 74 5A student carries out an experiment to find the density of a rock. measuring cylinder liquid rock 200 g balance 264 g 35 Which two measurements does the student need to make to determine the density of the rock? measurement 1 measurement 2 A increase in mass increase in volume of liquid B final mass increase in depth of liquid C increase in mass increase in depth of liquid D final mass increase in volume of liquid 75 636 A car has a mass of 1500 kg. A constant resultant force acts on the car and the car accelerates from 15 m / s to 20 m / s in 4.0 seconds. What is the magnitude of the resultant force acting on the car? A 300 N B 1200 N C 1900 N D 7500 N 76 In a small hydroelectric power scheme, 800 kg of water drops through a vertical height of 2.2m every 35second. The electrical output is 10.6kW. What is the efficiency the scheme? A 0.6% B 17% C 60% D 75%  www.dynamicpapers.com 4 77 7A metal wire is loaded up to the limit of proportionality. Which statement is correct? A Hooke’s law is not obeyed when the load is increased from zero to this point. B When the load is increased beyond the limit of proportionality, the diameter of the wire will increase. C When the load is removed, the wire returns to its original length. D Up to the limit of proportionality, there is no change in the shape of the wire. 78 8The diagram shows a uniform metre rule, MN, pivoted at its midpoint P. M P N W1 W2 Two weights, W1 and W2, are hung either side of the pivot. The rule remains balanced. Which row is correct? direction of resultant direction of resultant moment about point M force on the rule A clockwise downwards B clockwise zero C zero downwards D zero zero 79 9Which physical quantity is a vector? A mass B density C temperature D velocity 80 10 A resultant force of 500 N acts for 10 s on a car of mass 1000 kg. This causes the velocity of the car to double. What is the final velocity of the car? A 5 m /s B 10 m / s C 20 m / s D 50 m / s © UCLES 2022 0625/22/F/M/22