2008
An object of mass 0.25kg moves at a height h above the ground with a speed of 4ms-1, if its mechanical energy at this height is 12 J, determine the value of h. [g = 10ms-1]
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2008 WAEC SSCE Physics Past Questions
2008
Which of the following devices convert heat energy to electrical energy?
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2008
Light is considered as a transverse wave because it travels
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2008
It takes a shorter time for a liquid to boil at the top of a mountain than at the base because at the top, the
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2008
The working principle of a pressure cooker is based on the
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2008
Water of mass 1.5kg is heated from from 30oC to 80oC using an electric kettle which is rated 5A, 230V. Calculate the time taken to reach the final destination [specific heat capacity of water 4200Jkg-1K-1]
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2008
The cubic expansivity of a certain gas at constant pressure is \(\frac{1}{273} k^{-1}\). If a given mass of the gas is held at constant pressure and its volume at 0oC is 273m3, determine the volume of the gas at 273oC.
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2008
A converging lens and a screen are placed 20 cm and 80 cm respectively from an object in a straight line so that a sharp image of the object is formed on the screen. If the object is 3cm high. Calculate the height of the…
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2008
When viewed straight down, a fish in a pond is
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2008
The image of an object formed by a convex mirror is
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2008
The distance between a concave mirror and an object placed in front of it is 1.0m. If the raduis of curvature of the mirror is 4.0m, the image formed will be
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2008
In the day time, it is possible to see under shady areas such as under a tree because light has undergone
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2008
If the charge on an object is measured as 4.0 x 10-18C, how many excess electrons does the object possess, given that the charge of an electron is 1.6 x 10-18C
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2008
Two bodies each carrying a charge of 2.00 x 10-10C are 5cm apart. Calculate the magnitude of the force between the charges.[\(\frac{1}{4\pi \mathit{E}_o} = 9.00 \times 10^9 Nm^2C{-2}\)]
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2008
A negatively charged rod is held close to an uncharged metal ball on an insulating stand. The ball will
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2008
a sound wave is produced fron a source ans an echo is heard t seconds afterwards. If d is the distance of the reflecting surface from the source, v the speed, p the wavelength and T the period of the wave, then
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2008
Which of the following defects of vision is as a result of the eye ball being too long?
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2008
Which of the following actions will not increase the sensitivity of a moving coil galvanometer?
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2008
A voltmeter is a device that
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2008
A wire 1.0m long and with cross-sectional area 2.0 x 10-7 m2 has a resistance of 0.1\(\Omega\). Calculate the electrical conductivity of the wire
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