laboratory apparatus and equipment. Unfortunately, you wanted to conduct an experiment to determine acceleration due to gravity to Form Two students. How would you improvise the apparatuses so that you perform such an experiment effectively? Give four points.

1. How would you improvise the apparatuses so that you perform such an experiment effectively? Give four points. (4 mk)

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Some of the Physics teachers argued that preparing a lesson plan is too demanding and time wastage activity. Comment on teacher arguments giving four points.

1. Comment on teacher arguments giving four points. (4 mk)

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Form Three students were given a task of conducting an experiment to verify Ohm’s law. You have decided to use observation schedule to record their participation during experiment. What four key points would you record for students’ assessment?

1. What four key points would you record for students’ assessment? (4 mk)

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(a) Scientists at Tanzania Atomic Energy Agency bombarded the stable and naturally occurring nuclide of Cobalt-59 with neutrons. Explain this process basing on neutron-activation. (b) An employee in the nuclear plant project has identified a radioactive element to have an initial count rate of 2400 counts per minute on a scale meter. After 30 hours the count was observed to fall to 300 counts per minute; (i) Determine the half-life of the element. (ii) If the initial number of atoms in another sample is 61020 , how many atoms will have decayed in 50 hours?

1. Scientists at Tanzania Atomic Energy Agency bombarded the stable and naturally occurring nuclide of Cobalt-59 with neutrons. Explain this process basing on neutron-activation. (4 mk)
2. Determine the half-life of the element. (4 mk)
3. If the initial number of atoms in another sample is 61020 , how many atoms will have decayed in 50 hours? (4 mk)

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In determining the beat frequency of a guitar string and turning fork, two student teachers were assigned to strike a guitar string and sound a turning fork by hitting it on a rubber band. If the tension of the string was 129.6 N and the beat frequency obtained when the string and the turning fork sounded was 10 beats per second, calculate the frequency of turning fork if the tension on the string is raised to 160 N.

1. calculate the frequency of turning fork if the tension on the string is raised to 160 N. (8 mk)

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During the block teaching practice, the academic master appointed you to present a sample of a lesson notes on “global warming and greenhouse” for the period of 80 minutes to your fellow student teachers before actual teaching. Prepare a lesson notes for the topic given using five points.

1. Prepare a lesson notes for the topic given using five points. (5 mk)

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Suppose you have been invited by the District Education Officer to orient the newly employed teachers on the application of principles of teaching and learning Physics, what would be your explanations on the following principles? (a) A learning environment should be supportive, productive and safe. (b) Students learn better from simple to complex.

1. A learning environment should be supportive, productive and safe. (3 mk)
2. Students learn better from simple to complex. (3 mk)

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