SS 3 PHYSICS PAST QUESTIONS (WAEC/NECO) HomeWAEC/NECO Exam Past QuestionsSS 3 PHYSICS PAST QUESTIONS (WAEC/NECO) 0% SSCE/NECO/GCE (PHYSICS PAST QUESTIONS) PHYSICS PAST QUESTIONS APP Questions will be picked at random from the question bank. You can use the NEXT button to move to the next question, use the PREV button to move to the previous question, the CLEAR button to clear any answer of your choice and you have the FINISH button to end the exam if you choose to. Any question not answered before the end of the exam time, will be marked as wrong and the exam will end by itself. so try to attempt all questions on time. Goodluck! 1 / 80 Category: PHYSICS PAST QUESTIONS The diagram above illustrates a block ans tackle pulley system in which an effort E supports a load of 100.0N. If the efficiency of the machine is 75%, calculate the value of E 38.0N 67.0N 22.2N 75.0N 2 / 80 Category: PHYSICS PAST QUESTIONS A student measures the volume of a liquid using a measuring cylinder. What else needs to be measured by the student in order to determine the density of the liquid? temperature of the liquid mass of the liquid depth of the liquid in the cylinder mass of the cylinder 3 / 80 Category: PHYSICS PAST QUESTIONS In an experiment in which a molten substance is allowed to cool, the cooling curve above was obtained. The temperature 60oC is known as the boiling point cooling temperature melting point vaporization point 4 / 80 Category: PHYSICS PAST QUESTIONS A body can undergo the following types of motion except rotational relative random translational 5 / 80 Category: PHYSICS PAST QUESTIONS The diagram above illustrates a wave setup between two fixed ends 4.0m apart. If the speed of the wave is 1.0 ms−¹, its wavelength and frequency respectively are 2m; 0.50Hz 4m; 0.50Hz 1m; 0.25Hz 2m; 0.25Hz 6 / 80 Category: PHYSICS PAST QUESTIONS The ice point on the absolute scale of temperature is 273K 32K 0K 100K 7 / 80 Category: PHYSICS PAST QUESTIONS A uniform bar AB is balanced on a knife-edge which is 60cm from B by a mass of 22g which hangs at C 10cm from A. Calculate the mass of the bar. 60.0g 133.2g 66.0g 22.0g 8 / 80 Category: PHYSICS PAST QUESTIONS Which of the following substances lowers the surface tension of water? metal detergent sand paper 9 / 80 Category: PHYSICS PAST QUESTIONS Total internal reflection. i. is a phenomenon of refraction of light. ii. occurs when light rays travel into a denser medium. iii. occurs when the critical angle is just exceeded. iv. is a phenomenon of reflection of light. Which of the statements above are correct? i and ii only i, iii and iv only i, ii and iii only i and iii only 10 / 80 Category: PHYSICS PAST QUESTIONS A ray of light incident at an angle θθ in a rectangular prism grazes the surface of the prism on emerging from the prism. Determine the value of the angle. [Absolute refractive index of the material of the prism is 1.5] 48.2° 41.8° 60.8° 90.0° 11 / 80 Category: PHYSICS PAST QUESTIONS Thermal energy added or removed from a substance that changes the state of the substance is called calorimetry heat of reaction latent heat specific heat 12 / 80 Category: PHYSICS PAST QUESTIONS A pressurized perfume bottle is left on the window pane of a room. What happens to he gas molecules of the perfume on a sunny day? They move more rapidly collide less often expand contract 13 / 80 Category: PHYSICS PAST QUESTIONS Which of the following graphs correctly represents the relationship between the kinetic energy (K.E) and the displacement (d) from point of release of a swinging pendulum bob? IV III I II 14 / 80 Category: PHYSICS PAST QUESTIONS The image formed by a concave mirror is real, inverted and magnified, when object is placed beyond the centre of curvature between the centre of curvature and the focus at the focus at the centre of curvature 15 / 80 Category: PHYSICS PAST QUESTIONS Which of the following statements correctly defines the boiling point of a liquid? The temperature at which the molecules leaves the liquid at a rate equal to the rate at which they return saturated vapour pressure equals the atmospheric pressure molecules leave the liquid at a rate higher than that at which they return molecules leave the liquid at a rate lower than the rate at which they return 16 / 80 Category: PHYSICS PAST QUESTIONS A body of mass m moving around a circle of radius r with a uniform speed v experiences a centripetal force F. The work done by the centripetal force on it is Fmr zero Fr/m Fv 17 / 80 Category: PHYSICS PAST QUESTIONS The diagram above is a micrometer screw gauge. Determine its reading 2.44mm 2.96mm 2.86mm 2.46mm 18 / 80 Category: PHYSICS PAST QUESTIONS The diagram given illustrates the waveform of a note produced by vibrations in an air column of length L. If the speed of sound in air is V, derive an expression for the frequency of the notes 5L/4V V/L 5VL/2 5V/4L 19 / 80 Category: PHYSICS PAST QUESTIONS Which of the following statements about matter is not correct? Molecules of liquids move about within the liquid and they are in constant motion Molecules of solids move more freely than molecules of liquids and gases Molecules of solids are more closely packed than those of liquids Energy is required to break the intermolecular forces of attraction between molecules 20 / 80 Category: PHYSICS PAST QUESTIONS The S.I unit for sound energy is dB J cd Hz 21 / 80 Category: PHYSICS PAST QUESTIONS Frequency is measured in meter per second hertz seconds farad 22 / 80 Category: PHYSICS PAST QUESTIONS Two plane mirrors are inclined at an angle 20° to each other. Determine the number of images formed when an object is placed between them. 17 18 19 20 23 / 80 Category: PHYSICS PAST QUESTIONS During a training session, two footballers pass a ball repeatedly between each other. The 'to and fro' motion of the ball is not simple harmonic because the I. Acceleration of the ball is not directed towards a fixed point II. Restoring force is not directed towards the centre III. Acceleration of the ball is not directly proportional to the displacement from a fixed point Which of the statements above are correct? I and III only I and II only II and III only I, II and III 24 / 80 Category: PHYSICS PAST QUESTIONS A ball is projected horizontally from the top of a tower. Neglecting air resistance, which of the following statements about its motion is/are correct? I. Vertical acceleration on the ball decreases as it falls II. The vertical force on the ball remains constant III. The vertical speed of the ball increases as it falls II only II and III only I and II only I only 25 / 80 Category: PHYSICS PAST QUESTIONS The graph of density against temperature for water is correctly illustrated by I IV III II 26 / 80 Category: PHYSICS PAST QUESTIONS A converging lens of focal length 10cm forms an erect image three times the size of the real object. Calculate the distance between the image and the object 13.3cm 6.6cm 11.1cm 20.0cm 27 / 80 Category: PHYSICS PAST QUESTIONS An object of volume 400cm3 and 2.5gcm-3 is suspended from a spring balance with half its volume immersed in water. Determine the reading on the spring balance. (Density of water = 1gcm-3) 400g 800g 1200g 1000g 28 / 80 Category: PHYSICS PAST QUESTIONS A rainbow is formed when sunlight is incident on water droplets suspended in the air due to interference diffraction refraction dispersion 29 / 80 Category: PHYSICS PAST QUESTIONS A dam is able to hold a large quantity of water because its wall is of the same thickness throughout thickest at the bottom thickest at the middle thickest at the top 30 / 80 Category: PHYSICS PAST QUESTIONS An object floats in a fluid when it displaces it's mass of fluid in which it foats density of fluid in which it foats volume of liquid in which it floats weith of fluid in which it foats 31 / 80 Category: PHYSICS PAST QUESTIONS Complementary colours are those which add-up to produce black light add-up to produce white light have the same wavelength have the same refractive index 32 / 80 Category: PHYSICS PAST QUESTIONS The diagram above illustrates two waves of equal amplitudes A and frequencies approaching each other. When the two waves meet at a point I midway between them, the vertical displacement of the resulting wave will be 0 2A A/4 A/2 33 / 80 Category: PHYSICS PAST QUESTIONS Which of the following processes is not a surface phenomenon? Condensation Evaporation Photo Emission Thermionic Emission 34 / 80 Category: PHYSICS PAST QUESTIONS A quantity of hot water at 100oC is added to 400g of water at 10oC until the temperature of the mixture is 60oC. Calculate the mass of the hot water added. [Specific heat capacity of water =4200JKg-1 K-1] 400g 320g 200g 500g 35 / 80 Category: PHYSICS PAST QUESTIONS The diagram above illustrates a simple barometer. Which distance measures the atmospheric pressure? PQ QS RS QR 36 / 80 Category: PHYSICS PAST QUESTIONS The property of a body to remain at rest or to continue in uniform motion in a straight line is called impulse momentum Energy Inertia 37 / 80 Category: PHYSICS PAST QUESTIONS A chemical balance is used for measuring thickness mass density volume 38 / 80 Category: PHYSICS PAST QUESTIONS Which of the following devices converts light energy to electrical energy? Television Bulb Light emitting diode (LED) Solar cell 39 / 80 Category: PHYSICS PAST QUESTIONS The angle at which a projectile must be fired to cover maximum range is 90° 60° 30° 45° 40 / 80 Category: PHYSICS PAST QUESTIONS A vapour whose molecules are in dynamic equilibrium with those of its own liquid is said to be diffused gaseous unsaturated saturated 41 / 80 Category: PHYSICS PAST QUESTIONS Consider the wave equation: y=10sin(x−50t)y=10sin(x−50t), What does the number 10 represent? Wavelength Amplitude Speed Acceleration 42 / 80 Category: PHYSICS PAST QUESTIONS Which of the following electromagnetic waves is most energetic? Radio waves Ultra-violet rays X-ray Gamma rays 43 / 80 Category: PHYSICS PAST QUESTIONS Which of the following statements is correct about the effect of dissolved salt on the freezing point of water? the freezing point is lowered the freezing point is increased the change in the freezing point depends on the temperature of the surrounding there is no change in the freezing point 44 / 80 Category: PHYSICS PAST QUESTIONS The slope of a straight-line velocity-time graph represents uniform acceleration uniform speed workdone total distance travelled 45 / 80 Category: PHYSICS PAST QUESTIONS The dimensions of momentum are ML-1T MLT-1 ML-1T-1 MLT 46 / 80 Category: PHYSICS PAST QUESTIONS When a body is thrown vertically upwards, its velocity at the maximum height is half its initial value maximium zero double its initial value 47 / 80 Category: PHYSICS PAST QUESTIONS A body is whirled round a circular path at constant speed. Which of the following diagrams correctly indicates the direction of the body's velocity (v) and its acceleration (a)? I II III IV 48 / 80 Category: PHYSICS PAST QUESTIONS The pair of musical instruments that works on the vibration of air in pipes is guitar and the flute trumpet and the violin piano and the organ flute and the trumpet 49 / 80 Category: PHYSICS PAST QUESTIONS A plank is placed along the path on which a wheel barrow containing sand is pushed at a construction site to prevent it from sticking as illustrated in the diagram given. The large area of the plank prevents the wheel barrow from getting stuck by decreasing the weight on the ground decreasing the pressure on the ground increasing the reaction on the ground increasing the pressure on the ground 50 / 80 Category: PHYSICS PAST QUESTIONS The crackling noise produced by aluminum roofing sheets on a house during a hot sunny day is a result of thermal equilibrium of the sheets expansion of the sheets contraction of the sheets conduction of heat by the sheets 51 / 80 Category: PHYSICS PAST QUESTIONS Which of the following statements describes a body in a stable equilibrium correctly? ball resting on an inverted hemisphere bowl ball in the middle of a nemispherical bowl a person walking on a tight-rope ball on a smooth horizontal table 52 / 80 Category: PHYSICS PAST QUESTIONS The diagram given, represents the graph of stress against strain for an elastic wire. The point Q on the graph is the elastic linit proportional limit yield point breaking point 53 / 80 Category: PHYSICS PAST QUESTIONS In a school compound a girl walks 40km due east from the laboratory to the staff room to submit her report. Then she returns and walks 30m due north to her classroom. Determine the magnitude of her displacement from the10m laboratory 10m 70m 50m 35m 54 / 80 Category: PHYSICS PAST QUESTIONS An object at rest is said to possess potential energy chemical energy electrical energy kinetic energy 55 / 80 Category: PHYSICS PAST QUESTIONS Which of the following units is derived? m N K kg 56 / 80 Category: PHYSICS PAST QUESTIONS In an experiment in which a molten substance is allowed to cool, the cooling curve above was obtained. The temperature 60oC is known as the vaporization point melting point cooling temperature boiling point 57 / 80 Category: PHYSICS PAST QUESTIONS A uniform metre rule is balanced on a fulcrum placed at the 35cm mark by suspending a mass of 120g at the 10cm mark. Calculate the mass of the metre rule. 60g 200g 120g 80g 58 / 80 Category: PHYSICS PAST QUESTIONS The diagram above illustrates the mercury-in-glass thermometer used for determining the temperature of a room. Use the data on it to determine the room temperature. 13°C 7.0°C 3.3°C 59 / 80 Category: PHYSICS PAST QUESTIONS Which of the following quantities are dimensionally independent? I. Dielectric constant II. Momentum III. Efficiency IV. Refractive index I, III and IV I, II, III and IV I and II II, III and IV 60 / 80 Category: PHYSICS PAST QUESTIONS The mouth piece of a telephone handset converts electrical energy to sound energy sound energy to radiowave sound energy to electrical energy radiowave to sound energy 61 / 80 Category: PHYSICS PAST QUESTIONS Two strings each inclined at an angle 30o to the horizontal are used to hold a bucket of water weighing 20N. Calculate the tension i n each string. 20sqrt3N 20N 10N 10sqrt3N 62 / 80 Category: PHYSICS PAST QUESTIONS A battery of emf 24V is connected to three resistor P, Q and R as illustrated in the diagram. Determine the voltage across the resistor Q 14v 10v 24v 5v 63 / 80 Category: PHYSICS PAST QUESTIONS Plane waves through a narrow gap emerge as circular waves. This phenomenon is known as interference dispersion refraction diffraction 64 / 80 Category: PHYSICS PAST QUESTIONS Which of the following factors does not increase the rate of evaporation of water in a lake? Increase in the speed of the wind Rise in temperature Increase in the surface area of the lake Increase in the pressure of the atmosphere 65 / 80 Category: PHYSICS PAST QUESTIONS A plane is inclined at an angle θθ to the horizontal. Its velocity ratio is tanθ 1/tanθ 1/sinθ sinθ 66 / 80 Category: PHYSICS PAST QUESTIONS The bob of a simple pendulum takes 8.0s to complete 10 oscillations. Determine the frequency of oscillation of the bob. 1.25Hz 7.50Hz 0.125Hz 8.00Hz 67 / 80 Category: PHYSICS PAST QUESTIONS The diagram given illustrates a force-distance graph for the motion of a wooden block. Determine the work done on the block when moved through a distance of 5m. 15J 5J 100J 4J 68 / 80 Category: PHYSICS PAST QUESTIONS The maximum density of water occurs at a temperature of 4°C 37°C 0°C 273°C 69 / 80 Category: PHYSICS PAST QUESTIONS The continuous stirring in the method of mixtures to determine the specific thermal capacity of a substance ensures that there is rapid heat exchange that the thermal energy is confined to the mixture continuous dissipation of heat to the room uniform distribution of thermal energy to all parts of the mixture 70 / 80 Category: PHYSICS PAST QUESTIONS According to Newton's law of cooling, the heat energy lost per unit area of a body depends on the I. Surface area II. Nature of the surface III. Temperature of the surface IV. Excess temperature over the surroundings I, II and IV I,II and III I and II only II and IV only 71 / 80 Category: PHYSICS PAST QUESTIONS Materials that can be stretched and still return to their original forms when the stresses are removed are said be elastic elastomer plastic thermoplastic 72 / 80 Category: PHYSICS PAST QUESTIONS Which of the following statements about mass and weight are correct? i. Weight is the force of gravity on a body. ii. The mass of a body is the quantity of matter in the body. iii. The weight of a body is greatest at the equator. iv. The mass of a body is greatest at the poles ii and iv only iii and iv only i and iii only i and ii only 73 / 80 Category: PHYSICS PAST QUESTIONS Resonance occurs when one vibrating object causes a second object to vibrate at its own natural amplitude intensity speed frequency 74 / 80 Category: PHYSICS PAST QUESTIONS A ball is dropped from the top of a tower. Due to air resistance,it reaches terminal velocity. Which of the following statement(s) about its motion is/are correct? i. The acceleration of the ball is zero. ii. The net force on the ball is zero. iii. The velocity of the ball increases. ii and iii only i, ii and iii i and ii only i only 75 / 80 Category: PHYSICS PAST QUESTIONS The resultant force in a couple is infinite the sum of the forces the product of the forces zero 76 / 80 Category: PHYSICS PAST QUESTIONS Which of the following statements about the 3rd overtone of a vibrating air column of an open pipe is correct? It has 3 antinodes 4 nodes 5 nodes 4 antinodes 77 / 80 Category: PHYSICS PAST QUESTIONS In the clinical thermometer, the function of the kink is to i. Prevent the back flow of mercury after use. ii. Ensure the back flow of mercury after use. iii. Maintain the thermometric property of mercury. iv. Allow the temperature attained to be read. i and ii only i only i and iv only iii and iv only 78 / 80 Category: PHYSICS PAST QUESTIONS The diagram given is used to determine the amount of water in the atmosphere upper fixed point of a thermometer boiling point of water atmospheric pressure 79 / 80 Category: PHYSICS PAST QUESTIONS X-rays and infrared rays are both electromagnetic. Which common property do the waves have? Both waves have the same wavelength travel at the same speed in a vacuum have same frequency are longitudinal 80 / 80 Category: PHYSICS PAST QUESTIONS The diagram above illustrates a beaker of water being heated. It is observed that as the bubbles rise they get bigger in size.The reason for this observation is atmospheric pressure on the bubbles decreases volume of water increases with rise in temperature density of water increases with rise in temperature water pressure on the bubbles decreases Your score is 0% Restart quiz Practice also: SS 3 MATHEMATICS PAST QUESTIONS (WAEC/NECO) SS 3 LITERATURE PAST QUESTIONS (WAEC/NECO) SS 3 GOVERNMENT PAST QUESTIONS (WAEC/NECO) SS 3 GEOGRAPHY PAST QUESTIONS (WAEC/NECO) SS 3 FINANCIAL ACCOUNTING PAST QUESTIONS (WAEC/NECO)