b) Determine the final velocity at each round of a test. The recorded data provided were as shown. ...........................................................................................................................

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(c) Give one advantage and one disadvantage of using the cell ..

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A form Two teacher wrote the following statement on the blackboard ‘‘friction force is directly proportional to the normal reaction between two surfaces in contact with relative motion’’ Derive a mathematical equation represented by this statement. Using the formula obtained in (a), find the coefficient of friction where a block of 2kg is pulled on a rough horizontal surface with a force of 15N.

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In an experiment of expansion of metals, student heated a steel ball to a 0 temperature of 50 C to give a diameter of 50.25 mm. The ball was then placed over a hole of diameter 50 mm. Estimate the temperature of the ball as a result of dropping it through the hole. (Consider  = 0.000012/ 0 C).

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Suppose you are given a 100 g of lead shots, measuring cylinder partly full of water to a reading of 80ml. When lead shots placed into it, the reading rose to 88.8ml. Estimate the density and relative density of the lead shots.

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Kazimoto who is a Form Two student was pushing his books cabinet to its position after finishing the cleaning of his room. During this activity his friends Maganga, Gwalu, and Hogoma, who were watching him made a comment? (i) Maganga said: Good Kazimoto, you are so powerful as you have managed to use your energy with respect to time and power with energy to store the cabinet to its position. (ii) Gwalu commented to Maganga: Power and energy are two different things, energy is the Power per time taken and power is the ability to do work. (iii) Hogoma responded to Gwalu: Power is the rate of doing work and energy is the ability to do work. (iv) Kazimoto commented as well that, energy is the capacity to perform work while power is the energy consumed per time taken. From their arguments, who was right?

Engineering Science teacher presented the diagram shown in Figure 1 on the blackboard and asked the students to give the name of the product of the parameters ‘F’ and ‘a’ what will be the student answer to the teacher?

A form two student prepared an experiment in laboratory to determine the resistance ‘R’ of a metallic conductor. She closed the switch K, and adjusted the rheostat ‘R ’ to different positions to increase the current. For each position she recorded the readings ‘V’ and ‘I’ of the voltmeter and ammeter respectively. Table 2: I(amps) | 1 | 2 | 3 | 4 | 5 | 6 V(Volts) | 2 | 4 | 6 | 8 | 10 | 12 From the Table 2 answer the following questions.

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