2000
A uniform cylindrical hydrometer of mass 20g and cross sectional area 0.54cm2 floats upright in a liquid. If 25cm of its length is submerged, calculate the relative density of the liquid. (Density of water = 1 gcm-3)
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2000 WAEC SSCE Physics Past Questions
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2000
An iron rod is moved from the earth to the moon. Which of the following properties of the rod would remain unchanged? i. mass ii. weight iii. relative density
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2000
The diagram above illustrates three forces T1, T2 and 100N in equilibrium. Determine the magnitude of T1
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2000
A bus travelling at 15ms-1 accelerates uniformly at 4ms-2, what is the distance covered in 10s?
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2000
The driver of a car moving with uniform speed of 40ms-1 observes a truck approaching from the opposite direction with a speed of 20ms-1. Calculate the speed of the car relative to that of the truck
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2000
A ball bearing is gently released from rest and allowed to fall through a viscous fluid. Which of the following statements about the motion is correct?
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2000
A wooden block of mass 1.6kg rest on a rough horizontal surface, if the limiting friction force between the block and the surface is 8N. Calculate the coefficient of friction. (g = 10ms-2)
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2000
An inelastic collision takes place between ball of known masses, just before the collision one of the ball is moving with a known velocity while the other is stationary. Which of the following physical quantities can be…
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2000
The period of oscillation pf a particle executing simple harmonic motion is 4\(\pi\) seconds. If the amplitude of oscillation is 3.0m. Calculate its period
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2000
The bob of a simple pendulum takes 0.25s to swing from its equilibrium position to one extreme end. Calculate its period
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2000
The resultant of two forces acting on an object is maximum when the angle between them is
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2000
A uniform metre rule of mass 90g is provided at the 40cm mark. If the rule is in equilibrium with an unknown mass m placed at the 10cm mark and a 72g mass at the 70cm mark, determine m
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2000
The diagram shows the variation of volume V of a glass with temperature at the point X is
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2000
The cubic expansivity of mercury is 1.8 x 10-4K-1 and the linear expansivity of glass 8.0 x 10-6K-1, calculate the apparent expansivity of mercury in a glass container
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2000
Two bodies P and Q, are in thermal equilibrium, which of the following statements about the bodies is correct?
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2000
A machine of efficiency 8% is used to raise a body of mass 75kg through a vertical height of 3m in 30s. Calculate the power input. (g = 10ms-2)
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2000
Using the force displacement diagram shown above. Calculate the work done.
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2000
A periodic pulse travels a distance of 20.0m in 1.00s. If its frequency is 2.0 x 103Hz. Calculate the wavelength.
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2000
The temperature at which the saturated vapour pressure of a liquid is equal to the external atmospheric pressure is known as its
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2000
The mass of water vapour in a given volume of air is 0.05g at 20oC, while the mass of water vapour required to saturate it at the same temperature is 0.15g. Calculate the relative humidity of the air
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