2018
A body is projected with an initial velocity u at angle \(\theta\) to the horizontal. If \(R_{max}\) is the maximum range of the projectile, what does the relation \(\frac{u^{2}}{R_{max}}\) represent?
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2018 WAEC SSCE Physics Past Questions
2018
Which of the following quantities are dimensionally independent?I. Dielectric constant II. Momentum III. Efficiency IV. Refractive index
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2018
A block is acted upon by TWO horizontal forces as illustrated in the diagram above. The block accelerates at 1.5\(ms^{-2}\). Calculate the mass of the block.
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2018
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
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2018
A dam is able to hold a large quantity of water because its wall is
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2018
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 theI. Acceleration of the ball is not directed towards a fixed poin…
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2018
The property of a body to remain at rest or to continue in uniform motion in a straight line is called
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2018
The diagram above illustrates a simple barometer. Which distance measures the atmospheric pressure?
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2018
The general definition of elastic modulus is
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2018
The S.I unit for sound energy is
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2018
In the actual exam, a setup will be provided, including an ammeter, a resistor, a key, a metre bridge, and other necessary apparatus. The experiment involves connecting the circuit as shown in the diagram, using the jock…
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2018
In the actual exam, a setup will be provided, comprising a meter rule, lens, screen, ray box, and other necessary apparatus. The experiment involves placing an object at varying distances x from the lens and adjusting th…
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2018
You are provided with a pendulum bob, a metre rule, a stopwatch, a retort stand with clamp, and other necessary apparatus. i. Suspend the pendulum bob from the clamp as illustrated in the diagram.ii. Adjust the pendulum…
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2018
(a) Define binding energy in an atom.(b) List three evidence to support the claim that X-rays are electromagnetic waves.(c) List three peaceful uses of nuclear energy.(d) Light of wavelength 4.5 x 10\(^{-7}\) in is incid…
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2018
(a) Define:(i) reactance;(ii) impedance in an a.c.The diagram here illustrates an a.c. generator. When the coil is rotated, an e.m.f is induced in the coil.(i) Explain why an e.m.f. is induced.(ii) State the purpose of t…
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2018
(a) Define diffraction.(b)(i) Explain critical angle. The diagram here illustrates a ray of light passing through a rectangular transparent plastic block \(\alpha\) Determine the value of the critical angle. \(\beta\) Ca…
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2018
(a) List two factors each that affect heat loss by:(i) radiation;(ii) convection.(b) State two factors that determine the quantity of heat in a body.(c) Explain the statement: The vecilic latent heat of vaporization of m…
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2018
(a) Define uniform acceleration.(b) Forces act on a car in motion. List the(i) horizontal forces and their directions;(ii) vertical forces and their directions(c) A car starts from rest and accelerate uniformly for 20s t…
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2018
a) What does the acronym LASER stand for?b) What is a laser?
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2018
A black body radiates maximum energy when its surface temperature T and the corresponding wavelength \(\lambda\)max are related by the equation \(\lambda\)max T = constant. Given the values of the constant and surface te…
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