Recent questions without an upvoted answer

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A steel is to be magnetized by electrical method as shown below. Identify the pole P and Q of the resulting magnet.

asked Jul 7, 2021 in Physics Form 2 by anonymous

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The figure below shows a ray of light incident on the surface of one plane mirror.

asked Jul 7, 2021 in Physics Form 1 by anonymous

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State two conditions under which a pinhole camera may form an image on its screen which has the same size as the object.

asked Jul 7, 2021 in Physics Form 1 by anonymous

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A stone is whirled in a vertical circle as shown in the figure below using a string of length 40 cm. A, B, C and D are various positions of the stone in its motion. The stone makes 2 revolutions per second and has a mass of 100g.

asked Jul 7, 2021 in Physics Form 4 by anonymous

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Explain why the moon is said to be accelerating when revolving around the earth at constant speed

asked Jul 7, 2021 in Physics Form 3 by anonymous

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A body of mass 5 kg is ejected vertically to a height of 7.2 m from the ground when a force acts on it for 0.1s. Calculate the force used to eject the body.

asked Jul 7, 2021 in Physics Form 1 by anonymous

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Distinguish between elastic and inelastic collisions.

asked Jul 7, 2021 in Physics Form 3 by anonymous

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Figure below shows a uniform plank of weight 20N and length 1.0m balanced by a 0.5kg mass at a distance x from the pivot point O.

asked Jul 7, 2021 in Physics Form 1 by anonymous

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The diagram below shows a car acid hydrometer.

asked Jul 7, 2021 in Physics Form 1 by anonymous

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You are provided with the following:- A block of wood A spring balance Thin thread Overflow can A small measuring cylinder Some liquid With the aid of a labeled diagram an experiment to the law of floatation

asked Jul 7, 2021 in Physics Form 1 by anonymous

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If 25.0cm3 of 0.1 MH2S04 solution neutralized a solution containing 1.06g of sodium carbonate in 250cm3 of solution, calculate,

asked Jul 7, 2021 in Chemistry Form 3 by anony mous

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The figure below shows a hydraulic press supporting a load F.

asked Jul 7, 2021 in Physics Form 1 by anonymous

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Study the flow chart below and answer the questions that follow.

asked Jul 7, 2021 in Chemistry Form 3 by anony mous

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Liquids expand when heated and contract when cooled. However this is not always true for water.

asked Jul 7, 2021 in Physics Form 1 by anonymous

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3g of 257Lr whose half-life is 8 days, remains after undergoing radioactive decay for 32 days. Find the original amount of substance.

asked Jul 7, 2021 in Chemistry Form 4 by anony mous

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Explain the following as regards the solar heater:

asked Jul 7, 2021 in Physics Form 1 by anonymous

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The chief ore of aluminium is bauxite which mainly contains Al2O3.2H20. The ore is initially purified before aluminium is extracted electrolitically.

asked Jul 7, 2021 in Chemistry Form 4 by anony mous

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Under a driving force of 3000 N, a car of mass 1200 kg has an acceleration of 1.3 m/s2. Find the frictional resistance acting in the car.

asked Jul 7, 2021 in Physics Form 1 by anonymous

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State the three factors on which the rate of heat flow depends on.

asked Jul 7, 2021 in Physics Form 1 by anonymous

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Calculate the acceleration due to gravity on a planet where an object released from rest falls through a height of 54.2 m in 1.08 s

asked Jul 7, 2021 in Physics Form 2 by anonymous

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