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Below is a diagram of a sheep with some parts labeled A, B, and C. Study
the diagram and answer the questions that follow.
(i) What operation is usually carried out on the part labeled A during a sheep’s early stages of life?
(ii) Why is it necessary to carryout the operation in (i) above?
(iii) At what stage of sheep should the operation in (i) above be carried out?
(iv) Give two methods of carrying out the operation in (i) above,
(v) Which operation is usually carried out on part labeled B
(vi) What problem would occur if the operation in (V) above is not carried out?
(vii) How should the sheep beheld when shearing wool around part labeled C?
Date posted:
March 25, 2019
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With an aid of a diagram,explain the features resulting From Vulcanicity.
Date posted:
March 25, 2019
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The figure below shows two parallel current- carrying conductors A and B placed close to each other. The direction of the current is into the plane of the paper. Copy the diagram and on the same figure;
(i) Sketch the magnetic field pattern
(ii) indicate the force F due to the current on each conductor
Date posted:
March 25, 2019
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One way of demagnetizing bar is to place it in a solenoid in which an alternating current (ac) flows. How is the demagnetization achieved?
Date posted:
March 25, 2019
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You are provided with two iron bars, X and Y, one is magnetized and the other is not. Explain how you would identify the magnetized bar without using a magnet.
Date posted:
March 25, 2019
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The diagram below shows an experiment set up using soil types
&, H and J and observations made after 24 hours. Study the diagram and answer the questions that follow.
i) What is the experiment represented above designed to study?
ii) Name the three soil types & H and J.
iii) What is the characteristic texture of soil types G and J?
iv) State how a farmer would improve the structure of soil type G.
Date posted:
March 25, 2019
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The figure shows a wire in a magnetic field. A current is switched on to flow through the wire in the direction shown. State the direction of motion of the wire.
Date posted:
March 25, 2019
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The graph in the figure below shows the relationship between the attractive forces of an electromagnetic and the magnetizing current. Give reasons for the shape of the curve in terms of the domain theory.
Date posted:
March 25, 2019
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Which observation made when helium is ignited in oxygen?
Date posted:
March 24, 2019
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When ammeter is connected between the two plates of a simple cell, the pointer deflects along the scale. Explain
Date posted:
March 23, 2019
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Explain clearly the precautionary measures you would take to maintain the efficiency of an accumulator?
Date posted:
March 23, 2019
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A student wishes to investigate the relationship between current and voltage for a certain device X. In the space provided, draw a circuit diagram including two cells, rheostat, ammeter, voltmeter and the device X that would be suitable in obtaining the desired results.
Date posted:
March 23, 2019
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A current of 0.08A passes in a circuit for 2.5 minutes. How much charge passes through a point in the circuit?
Date posted:
March 23, 2019
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What current will a 500Ω resistor connected to a source of 240V draw?
Date posted:
March 23, 2019
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A student learnt that a battery of eight dry cells each 1.5V has a total e.m.f of 12V the same as a car battery. He connected in series eight new dry batteries to his car but found that they could not start the engine. Give a reason for this observation
Date posted:
March 23, 2019
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The figure below shows an arrangement of capacitors connected to a 10V d.c supply. Determine:
(i) The charge stored in the 2µ F capacitor.
(ii) The total capacitance of the arrangement.
Date posted:
March 23, 2019
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State two ways of charging the magnitude of the deflection of the leaf of an electroscope.
Date posted:
March 23, 2019
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State the precaution that is taken when charging a metal object
Date posted:
March 23, 2019
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In the clothing and textile industries the machines experiences electrostatics forces at certain points. Suggest one method of reducing these forces.
Date posted:
March 23, 2019
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Two isolated and insulated spheres A and B carry the same positive charge. Sketch the electric lines of force of their field when placed close to each other but not touching some.
Date posted:
March 23, 2019
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Define the term map,picture and plan.
Date posted:
March 22, 2019
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The diagram below shows part of plant tissue.
(i) Name the cell labelled X and part labelled W.
(ii) State two adaptations of cell labelled X to its functions.
Date posted:
March 22, 2019
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State four factors that a farmer should consider before buying a
tractor for use as the source of power on the farm.
Date posted:
March 22, 2019
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If the nerve supply to the heart of a mammal is servered, the rhythmic heart movement will still go on and the heart continues to beat. Explain this observation
Date posted:
March 22, 2019
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Explain why freshwater fishing or inland fishing is carried out by many people in East Africa compared to marine Fishing
Date posted:
March 22, 2019
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State four advantages of using a Kenya Top Bar Hive over log hive.
Date posted:
March 22, 2019
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Describe the procedure of erecting wooden posts for fencing.
Date posted:
March 22, 2019
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The action of pepsin stops in the duodenum. Explain.
Date posted:
March 22, 2019
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What is the importance of heartbeat in blood circulation?
Date posted:
March 22, 2019
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Outline circumstances where 40% distribution rule of dividend may not be applied.
Date posted:
March 22, 2019