2020
The temperature of an object is raised by 120°C. The resulting increase in its absolute temperature is
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2020 WAEC SSCE Physics Past Questions
2020
A motorcycle starting from rest is uniformly accelerated such that its velocity in 10s is 72kmhr\(^{-1}\). What is its acceleration?
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2020
The magnitude of the force experienced by a charge of 1.6 x 10\(^{-8}\)C in a uniform electric field of intensity 5 x 105NC\(^{-1}\)is
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2020
What factors determine the frequency of a note emitted by a vibrating string?
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2020
The diagram above illustrates a ball of mass m sliding down a plank inclined at an angle of \(\theta\) to the horizontal. The kinetic friction between the ball and the plank is F, and the acceleration of free fall is g.…
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2020
The diagram illustrates a ball of mass m sliding down a plank inclined at an angle of \(\theta\) to the horizontal. The kinetic friction between the ball and the plank is F and acceleration of free fall is g. The normal…
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2020
A 500N box rests on a horizontal floor. A constant horizontal force is exerted on the box so that it moves through 8m. If the coefficient of kinetic friction between the floor and the box is 0.22, calculate the workdone…
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2020
Which of the current-voltage characteristics shown below is that exhibited by an ohmic conductor?
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2020
The velocity of sound in air at 15°C is 35400ms\(^{-1}\). Calculatethe velocity at 47\(^o\)C
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2020
A parallel plate capacitor is charged and the charging battery issubsequently disconnected. lf the plates of the capacitor are moved fartherapart by means of insulating handles, the
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2020
A beam consisting of \(\alpha\)-particles. \(\beta\)-particles and \(\gamma\)-rayspass through a magnetic field at right angles to the direction of the field. Which of thefollowing observations would be made about the \(…
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2020
A moving-coil galvanometer which gives a full-scale on deflection with 0.005A is converted to a voltmeter reading up to 5V using an external resistance of 975\(\Omega\).What is the resistance of the metre?
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2020
The length of an iron bar is 100cm at 20°C. At what temperature will its length increase by 0.01%? [Linear expansivity of iron = 1.2 x 10\(^{-5}\)°C]
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2020
A 60kg man stands on a weighing balance in an elevator. If the elevator accelerates upwards at 5ms\(^{-2}\),determine the reading of the scale. [g = 10ms\(^{-2}\)]
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2020
A ray of light traveling from glass into ethyl alcohol isincident at the boundary at an angle of incidence 30\(^o\). Calculate the angle of refraction.[Refractive index of glass =1.5; refractive index of ethyl alcohol =…
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2020
Two identical cups containing the same volume of water at 45°C and 5°C, are left in a room at 25°C. Which of the following graphs correctly illustrates the variation of temperature with time?
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2020
The earpiece of a telephone handsetconverts energy from
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2020
An electrical device has 50 turns in its primary coil and 20 turns in the secondary coil. The device can be a\an?
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2020
The diagram above illustrates a beam of parallel rays from a distant object O, incident on one side of the total reflecting prism. Which diagram does not represent the correct path of the beam when it emerges from the pr…
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2020
Which of the following statements explain why hot soapy wateris more effective in cleaning oil-stained dishes?
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