2007
If a gas is excited by high voltage to produce a discharge and the light is examined in a spectrometer
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2007 WAEC SSCE Physics Past Questions
2007
Which of the following is/are in random motion? i. Pollen grains in water ii. The molecules of hydrogen gas ii. Fine chalk particles floating in air
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2007
If the air inside a rigid box is heated, the i, average speed of the molecules increases ii. pressure of the air increases iii. average separation of the molecule increases. Which of the statements above are correct?
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2007
Calculate the effective resistance between P and Q in the diagram above
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2007
The diagram above illustrates three forces acting on an object at point O. If the object is in equilibrium, determine the magnitude of the force P.
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2007
In the actual exam, a setup will be provided, where you'll use an accumulator, a standard resistor, two resistance boxes, keys, and other necessary apparatus to perform an electrical experiment as per the given circuit d…
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2007
In the actual exam, a setup will be provided, where you'll use a triangular glass prism, a plane mirror, drawing paper, pins, and a protractor to perform an experiment on light reflection and refraction. The steps includ…
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2007
In the actual exam, a setup will be provided, consisting of a retort stand, clamp and boss, a pendulum bob, a piece of thread, and other necessary apparatus. The experiment involves setting up a simple pendulum, measurin…
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2007
(a)(i) With the aid of a labelled diagram describe the mode of operation of a modern X-ray tube.(ii)State the energy transformations that take place during the operation of the X-ray tube.(b) Define, as applied to X-rays…
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2007
(a) With the aid of a simple diagram, explain how a step down transformer works.(b)(i) State three ways by which energy is lost in a transformer(ii) Mention how each of the losses in (b)(i) above can be minimized(c) A 95…
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2007
(a)(i) What is a wave motion?(ii) State two differences between a radio wave and a sound wave.(b)(i) Given that you are provided with a tuning fork, a burette and other necessary apparatus, describe with the aid of a dia…
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2007
(a) Define the boiling point of a liquid.(b) With the aid of a sketch diagram, describe an experiment to determine the boiling point of a small quantity of a Iiquid(c) A piece of copper of mass 300 g at a temperature of…
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2007
(a) State the conditions of equilibrium for a number of coplanar parallel forces.(b) A metre rule is found to balance horizontally at the 48 cm mark. When a body of mass 60 g is suspended at the 6 cm mark, the balance po…
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2007
Define (a) tensile Stress; (b) tensile strain; (c) yield point.
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2007
A stone projected horizontally from the top of a tower with a speed of 4 ms\(^{-1}\) lands on the level ground at a horizontal distance 25 m from the foot of the tower. Calculate the height of the tower. g = 10 ms\(^{-2}…
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2007
State two effects to show (a) the existence of matter waves;(b) that radiation behaves like particles.
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2007
(a) List two factors that can affect the rate of diffusion (b) State two examples to illustrate the effects of surface tension.
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2007
A wire of length 5.0 m and diameter 2.0 mm extends by 0.25 mm when a force of 50 N was used to stretch it from its end. Calculate the;(a) stress on the wire;(b) strain in, the wire. [\(\pi = 3.142\)]
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2007
(a) Explain thermiopic emission(b) State two applications of electrical conduction through gases.
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2007
Copper of thickness d is plated on the cathode of a copper voltameter. If the total surface area of the cathode is 60 cm\(^2\) and a steady current of 5.0 A is maintained in the voltameter for 1 hour. calculate the value…
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