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0% SSCE/NECO/GCE (PHYSICS PAST QUESTIONS) PHYSICS PAST QUESTIONS APPQuestions will be picked at random from the question bank.Download School Portal NG Official Android AppYou 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 QUESTIONSA 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 increasing the pressure on the ground increasing the reaction on the ground decreasing the weight on the ground decreasing the pressure on the ground 2 / 80 Category: PHYSICS PAST QUESTIONSWhich of the following devices converts light energy to electrical energy? Light emitting diode (LED) Bulb Television Solar cell 3 / 80 Category: PHYSICS PAST QUESTIONSThe diagram above is a micrometer screw gauge. Determine its reading 2.46mm 2.44mm 2.86mm 2.96mm 4 / 80 Category: PHYSICS PAST QUESTIONSWhich 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 I II III 5 / 80 Category: PHYSICS PAST QUESTIONSIn 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 50m 10m 70m 35m 6 / 80 Category: PHYSICS PAST QUESTIONSThe 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 2A A/2 0 A/4 7 / 80 Category: PHYSICS PAST QUESTIONSThe resultant force in a couple is the sum of the forces the product of the forces infinite zero 8 / 80 Category: PHYSICS PAST QUESTIONSA 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 6.6cm 13.3cm 11.1cm 20.0cm 9 / 80 Category: PHYSICS PAST QUESTIONSWhich of the following substances lowers the surface tension of water? detergent paper metal sand 10 / 80 Category: PHYSICS PAST QUESTIONSA vapour whose molecules are in dynamic equilibrium with those of its own liquid is said to be unsaturated diffused gaseous saturated 11 / 80 Category: PHYSICS PAST QUESTIONSWhich 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 i and iii only i and ii only ii and iv only iii and iv only 12 / 80 Category: PHYSICS PAST QUESTIONSThe diagram above illustrates a simple barometer. Which distance measures the atmospheric pressure? RS PQ QR QS 13 / 80 Category: PHYSICS PAST QUESTIONSThe crackling noise produced by aluminum roofing sheets on a house during a hot sunny day is a result of contraction of the sheets thermal equilibrium of the sheets conduction of heat by the sheets expansion of the sheets 14 / 80 Category: PHYSICS PAST QUESTIONSThe property of a body to remain at rest or to continue in uniform motion in a straight line is called Inertia Energy momentum impulse 15 / 80 Category: PHYSICS PAST QUESTIONSA chemical balance is used for measuring mass thickness volume density 16 / 80 Category: PHYSICS PAST QUESTIONSThe ice point on the absolute scale of temperature is 32K 273K 100K 0K 17 / 80 Category: PHYSICS PAST QUESTIONSAn object floats in a fluid when it displaces it's weith of fluid in which it foats mass of fluid in which it foats density of fluid in which it foats volume of liquid in which it floats 18 / 80 Category: PHYSICS PAST QUESTIONSThe mouth piece of a telephone handset converts radiowave to sound energy electrical energy to sound energy sound energy to radiowave sound energy to electrical energy 19 / 80 Category: PHYSICS PAST QUESTIONSA 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? depth of the liquid in the cylinder temperature of the liquid mass of the liquid mass of the cylinder 20 / 80 Category: PHYSICS PAST QUESTIONSThe 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 water pressure on the bubbles decreases volume of water increases with rise in temperature density of water increases with rise in temperature atmospheric pressure on the bubbles decreases 21 / 80 Category: PHYSICS PAST QUESTIONSThe maximum density of water occurs at a temperature of 0°C 273°C 4°C 37°C 22 / 80 Category: PHYSICS PAST QUESTIONSThe slope of a straight-line velocity-time graph represents total distance travelled uniform speed uniform acceleration workdone 23 / 80 Category: PHYSICS PAST QUESTIONSA 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] 41.8° 60.8° 90.0° 48.2° 24 / 80 Category: PHYSICS PAST QUESTIONSIn 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 cooling temperature melting point boiling point 25 / 80 Category: PHYSICS PAST QUESTIONSA 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] 200g 500g 320g 400g 26 / 80 Category: PHYSICS PAST QUESTIONSComplementary colours are those which have the same wavelength add-up to produce white light add-up to produce black light have the same refractive index 27 / 80 Category: PHYSICS PAST QUESTIONSThe 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 5VL/2 5V/4L 5L/4V V/L 28 / 80 Category: PHYSICS PAST QUESTIONSIn the clinical thermometer, the function of the kink is toi. 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 iv only i and ii only i only iii and iv only 29 / 80 Category: PHYSICS PAST QUESTIONSTwo 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 10sqrt3N 10N 20N 30 / 80 Category: PHYSICS PAST QUESTIONSA 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 IV II III 31 / 80 Category: PHYSICS PAST QUESTIONSThe dimensions of momentum are ML-1T-1 ML-1T MLT-1 MLT 32 / 80 Category: PHYSICS PAST QUESTIONSFrequency is measured in seconds hertz meter per second farad 33 / 80 Category: PHYSICS PAST QUESTIONSWhich of the following factors does not increase the rate of evaporation of water in a lake? Increase in the surface area of the lake Increase in the speed of the wind Increase in the pressure of the atmosphere Rise in temperature 34 / 80 Category: PHYSICS PAST QUESTIONSA 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 Fv zero Fr/m Fmr 35 / 80 Category: PHYSICS PAST QUESTIONSPlane waves through a narrow gap emerge as circular waves. This phenomenon is known as refraction diffraction dispersion interference 36 / 80 Category: PHYSICS PAST QUESTIONSThe 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. 5J 100J 4J 15J 37 / 80 Category: PHYSICS PAST QUESTIONSThermal energy added or removed from a substance that changes the state of the substance is called calorimetry heat of reaction latent heat specific heat 38 / 80 Category: PHYSICS PAST QUESTIONSWhich of the following processes is not a surface phenomenon? Photo Emission Evaporation Thermionic Emission Condensation 39 / 80 Category: PHYSICS PAST QUESTIONSResonance occurs when one vibrating object causes a second object to vibrate at its own natural intensity frequency speed amplitude 40 / 80 Category: PHYSICS PAST QUESTIONSWhich of the following electromagnetic waves is most energetic? Radio waves Gamma rays X-ray Ultra-violet rays 41 / 80 Category: PHYSICS PAST QUESTIONSA 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. 66.0g 133.2g 22.0g 60.0g 42 / 80 Category: PHYSICS PAST QUESTIONSThe angle at which a projectile must be fired to cover maximum range is 60° 30° 90° 45° 43 / 80 Category: PHYSICS PAST QUESTIONSA 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. 80g 60g 200g 120g 44 / 80 Category: PHYSICS PAST QUESTIONSThe diagram given is used to determine the atmospheric pressure amount of water in the atmosphere boiling point of water upper fixed point of a thermometer 45 / 80 Category: PHYSICS PAST QUESTIONSWhich of the following statements correctly defines the boiling point of a liquid? The temperature at which the molecules leave the liquid at a rate higher than that at which they return 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 lower than the rate at which they return 46 / 80 Category: PHYSICS PAST QUESTIONSA plane is inclined at an angle θθ to the horizontal. Its velocity ratio is tanθ 1/tanθ sinθ 1/sinθ 47 / 80 Category: PHYSICS PAST QUESTIONSTwo plane mirrors are inclined at an angle 20° to each other. Determine the number of images formed when an object is placed between them. 20 17 18 19 48 / 80 Category: PHYSICS PAST QUESTIONSA 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 contract collide less often expand 49 / 80 Category: PHYSICS PAST QUESTIONSAn object at rest is said to possess electrical energy chemical energy potential energy kinetic energy 50 / 80 Category: PHYSICS PAST QUESTIONSThe 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 3.3°C 7.0°C 51 / 80 Category: PHYSICS PAST QUESTIONSTotal 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 iii only i and ii only i, iii and iv only i, ii and iii only 52 / 80 Category: PHYSICS PAST QUESTIONSWhich of the following units is derived? K N m kg 53 / 80 Category: PHYSICS PAST QUESTIONSA 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 top thickest at the middle 54 / 80 Category: PHYSICS PAST QUESTIONSThe pair of musical instruments that works on the vibration of air in pipes is piano and the organ guitar and the flute trumpet and the violin flute and the trumpet 55 / 80 Category: PHYSICS PAST QUESTIONSThe bob of a simple pendulum takes 8.0s to complete 10 oscillations. Determine the frequency of oscillation of the bob. 8.00Hz 1.25Hz 7.50Hz 0.125Hz 56 / 80 Category: PHYSICS PAST QUESTIONSWhich of the following quantities are dimensionally independent?I. Dielectric constantII. MomentumIII. EfficiencyIV. Refractive index I, II, III and IV I, III and IV I and II II, III and IV 57 / 80 Category: PHYSICS PAST QUESTIONSDuring 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 pointII. Restoring force is not directed towards the centreIII. Acceleration of the ball is not directly proportional to the displacement from a fixed pointWhich of the statements above are correct? I, II and III I and II only I and III only II and III only 58 / 80 Category: PHYSICS PAST QUESTIONSThe image formed by a concave mirror is real, inverted and magnified, when object is placed at the centre of curvature between the centre of curvature and the focus at the focus beyond the centre of curvature 59 / 80 Category: PHYSICS PAST QUESTIONSA 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. i only i, ii and iii ii and iii only i and ii only 60 / 80 Category: PHYSICS PAST QUESTIONSConsider the wave equation: y=10sin(x−50t)y=10sin(x−50t), What does the number 10 represent? Acceleration Speed Wavelength Amplitude 61 / 80 Category: PHYSICS PAST QUESTIONSWhich of the following statements describes a body in a stable equilibrium correctly? a person walking on a tight-rope ball on a smooth horizontal table ball resting on an inverted hemisphere bowl ball in the middle of a nemispherical bowl 62 / 80 Category: PHYSICS PAST QUESTIONSAn 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) 1000g 1200g 400g 800g 63 / 80 Category: PHYSICS PAST QUESTIONSA rainbow is formed when sunlight is incident on water droplets suspended in the air due to dispersion refraction interference diffraction 64 / 80 Category: PHYSICS PAST QUESTIONSMaterials that can be stretched and still return to their original forms when the stresses are removed are said be thermoplastic elastomer elastic plastic 65 / 80 Category: PHYSICS PAST QUESTIONSA 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 5v 10v 24v 66 / 80 Category: PHYSICS PAST QUESTIONSIn 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 boiling point melting point cooling temperature 67 / 80 Category: PHYSICS PAST QUESTIONSThe continuous stirring in the method of mixtures to determine the specific thermal capacity of a substance ensures that the thermal energy is confined to the mixture continuous dissipation of heat to the room that there is rapid heat exchange uniform distribution of thermal energy to all parts of the mixture 68 / 80 Category: PHYSICS PAST QUESTIONSWhen a body is thrown vertically upwards, its velocity at the maximum height is half its initial value double its initial value zero maximium 69 / 80 Category: PHYSICS PAST QUESTIONSThe graph of density against temperature for water is correctly illustrated by I II III IV 70 / 80 Category: PHYSICS PAST QUESTIONSThe 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 75.0N 22.2N 71 / 80 Category: PHYSICS PAST QUESTIONSWhich of the following statements about matter is not correct? Molecules of liquids move about within the liquid and they are in constant motion Energy is required to break the intermolecular forces of attraction between molecules Molecules of solids are more closely packed than those of liquids Molecules of solids move more freely than molecules of liquids and gases 72 / 80 Category: PHYSICS PAST QUESTIONSThe S.I unit for sound energy is J cd Hz dB 73 / 80 Category: PHYSICS PAST QUESTIONSA 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 fallsII. The vertical force on the ball remains constantIII. The vertical speed of the ball increases as it falls I and II only I only II only II and III only 74 / 80 Category: PHYSICS PAST QUESTIONSA body can undergo the following types of motion except random rotational translational relative 75 / 80 Category: PHYSICS PAST QUESTIONSX-rays and infrared rays are both electromagnetic. Which common property do the waves have? Both waves have the same wavelength are longitudinal travel at the same speed in a vacuum have same frequency 76 / 80 Category: PHYSICS PAST QUESTIONSThe 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 2m; 0.25Hz 4m; 0.50Hz 1m; 0.25Hz 77 / 80 Category: PHYSICS PAST QUESTIONSAccording to Newton's law of cooling, the heat energy lost per unit area of a body depends on theI. Surface areaII. Nature of the surfaceIII. Temperature of the surfaceIV. Excess temperature over the surroundings I and II only I,II and III II and IV only I, II and IV 78 / 80 Category: PHYSICS PAST QUESTIONSWhich of the following statements about the 3rd overtone of a vibrating air column of an open pipe is correct? It has 4 antinodes 4 nodes 5 nodes 3 antinodes 79 / 80 Category: PHYSICS PAST QUESTIONSWhich 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 there is no change in the freezing point the change in the freezing point depends on the temperature of the surrounding 80 / 80 Category: PHYSICS PAST QUESTIONSThe diagram given, represents the graph of stress against strain for an elastic wire. The point Q on the graph is the elastic linit breaking point proportional limit yield point Your score is 0% Restart quiz
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
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
2 / 80
Which of the following devices converts light energy to electrical energy?
3 / 80
The diagram above is a micrometer screw gauge. Determine its reading
4 / 80
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?
5 / 80
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
6 / 80
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
7 / 80
The resultant force in a couple is
8 / 80
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
9 / 80
Which of the following substances lowers the surface tension of water?
10 / 80
A vapour whose molecules are in dynamic equilibrium with those of its own liquid is said to be
11 / 80
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
12 / 80
The diagram above illustrates a simple barometer. Which distance measures the atmospheric pressure?
13 / 80
The crackling noise produced by aluminum roofing sheets on a house during a hot sunny day is a result of
14 / 80
The property of a body to remain at rest or to continue in uniform motion in a straight line is called
15 / 80
A chemical balance is used for measuring
16 / 80
The ice point on the absolute scale of temperature is
17 / 80
An object floats in a fluid when it displaces it's
18 / 80
The mouth piece of a telephone handset converts
19 / 80
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?
20 / 80
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
21 / 80
The maximum density of water occurs at a temperature of
22 / 80
The slope of a straight-line velocity-time graph represents
23 / 80
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]
24 / 80
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
25 / 80
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]
26 / 80
Complementary colours are those which
27 / 80
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
28 / 80
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.
29 / 80
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.
30 / 80
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)?
31 / 80
The dimensions of momentum are
32 / 80
Frequency is measured in
33 / 80
Which of the following factors does not increase the rate of evaporation of water in a lake?
34 / 80
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
35 / 80
Plane waves through a narrow gap emerge as circular waves. This phenomenon is known as
36 / 80
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.
37 / 80
Thermal energy added or removed from a substance that changes the state of the substance is called
38 / 80
Which of the following processes is not a surface phenomenon?
39 / 80
Resonance occurs when one vibrating object causes a second object to vibrate at its own natural
40 / 80
Which of the following electromagnetic waves is most energetic?
41 / 80
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.
42 / 80
The angle at which a projectile must be fired to cover maximum range is
43 / 80
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.
44 / 80
The diagram given is used to determine the
45 / 80
Which of the following statements correctly defines the boiling point of a liquid? The temperature at which the
46 / 80
A plane is inclined at an angle θθ to the horizontal. Its velocity ratio is
47 / 80
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.
48 / 80
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
49 / 80
An object at rest is said to possess
50 / 80
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.
51 / 80
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?
52 / 80
Which of the following units is derived?
53 / 80
A dam is able to hold a large quantity of water because its wall is
54 / 80
The pair of musical instruments that works on the vibration of air in pipes is
55 / 80
The bob of a simple pendulum takes 8.0s to complete 10 oscillations. Determine the frequency of oscillation of the bob.
56 / 80
Which of the following quantities are dimensionally independent?
I. Dielectric constant
II. Momentum
III. Efficiency
IV. Refractive index
57 / 80
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?
58 / 80
The image formed by a concave mirror is real, inverted and magnified, when object is placed
59 / 80
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.
60 / 80
Consider the wave equation: y=10sin(x−50t)y=10sin(x−50t), What does the number 10 represent?
61 / 80
Which of the following statements describes a body in a stable equilibrium correctly?
62 / 80
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)
63 / 80
A rainbow is formed when sunlight is incident on water droplets suspended in the air due to
64 / 80
Materials that can be stretched and still return to their original forms when the stresses are removed are said be
65 / 80
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
66 / 80
67 / 80
The continuous stirring in the method of mixtures to determine the specific thermal capacity of a substance ensures
68 / 80
When a body is thrown vertically upwards, its velocity at the maximum height is
69 / 80
The graph of density against temperature for water is correctly illustrated by
70 / 80
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
71 / 80
Which of the following statements about matter is not correct?
72 / 80
The S.I unit for sound energy is
73 / 80
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
74 / 80
A body can undergo the following types of motion except
75 / 80
X-rays and infrared rays are both electromagnetic. Which common property do the waves have? Both waves
76 / 80
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
77 / 80
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
78 / 80
Which of the following statements about the 3rd overtone of a vibrating air column of an open pipe is correct? It has
79 / 80
Which of the following statements is correct about the effect of dissolved salt on the freezing point of water?
80 / 80
The diagram given, represents the graph of stress against strain for an elastic wire. The point Q on the graph is the
Your score is
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