Physics 2014 WAEC Past Questions

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A ball falling through a viscous liquid is acted upon by

A. upthrust only
B. upthrust and the ball's weight
C. the ball's weight and viscous force
D. upthrust, the ball's weight and viscous force

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An object of mass m moves with a uniform speed v round a circular path of radius r. If its angular speed is \(\omega\), the magnitude of the centripetal force acting on it is

A. \(m \omega^2 r\)
B. \(\frac{mv^2}{r}\)
C. \(m \omega r\)
D. \(\frac{mv^2}{r^2}\)

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When an elastic material is stretched by a force, the energy stored in it is

A. kinetic
B. potential
C. thermal
D. electrical

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When the linear momentum of a body is constant, the net force acting on it

A. is zero
B. increases
C. decreases
D. remains constant

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If no net force acts on an object, the object maintains a state of rest or constant speed in a straight line. The above is a statement of Newton's

A. first law of motion
B. second law of motion
C. third law of motion
D. law of universal gravitation

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Physics 2014 WAEC Past Questions

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