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ICSE Notes 2018 : Physics (Dunne's Institute, Mumbai)

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SCIENCE (52) PHYSICS SCIENCE Paper - 1 3. To develop instrumental, communication, deductive and problem-solving skills. Aims: 1. To acquire knowledge and understanding of the terms, facts, concepts, definitions, laws, principles and processes of Physics. 4. To discover that there is a living and growing physics relevant to the modern age in which we live. 2. To develop skills in practical aspects of handling apparatus, recording observations and in drawing diagrams, graphs, etc. CLASS IX screw gauge for length, volume by displacement using a measuring cylinder, stop watch and simple pendulum for time, equal arm beam balance for comparison of masses). There will be one paper of two hours duration carrying 80 marks and Internal Assessment of practical work carrying 20 marks. The paper will be divided into two sections, Section I (40 marks) and Section II (40 marks). This section should be taught along with demonstration or laboratory experiments. Measurement of length using metre rule, Vernier calipers and micrometer screw gauge. They have increasing accuracy and decreasing least-count; zero error, zero correction (excluding negative zero error in Vernier calipers), pitch of the screw and least-count (LC); no numerical problems on calipers and screw gauge. Volume units, m3, cm3, litre and milliliter; their mutual relations. Measurement of volume of irregular solid bodies both heavier and lighter than water including those soluble in water, by displacement of water or other liquids in a measuring cylinder. Measurement of time using stopwatch; simple pendulum; time period, frequency, experiment for the measurement of T, graph of length l vs. T2 only; slope of the graph. Formula T=2. . l g [no derivation]. Only simple numerical problems. Beam balance; simple introduction; conditions for balance to be true (without proof). Faulty balance is not included. Section I (compulsory) will contain short answer questions on the entire syllabus. Section II will contain six questions. Candidates will be required to answer any four of these six questions. Note: Unless otherwise specified, only S I. Units are to be used while teaching and learning, as well as for answering questions. 1. Measurements and Experimentation (i) Estimation by orders of magnitude of size (length, area and volume), mass and time. Order of magnitude as statement of magnitude in powers of ten; familiarity with the orders of magnitude of some common sizes (length, area and volume), masses and time intervals e.g. idea of, mass of atoms, bottle of water, planets, diameter of atom, length of football field, inter stellar distances, pulse rate, age of earth etc. (ii) International System of Units, the required SI units with correct symbols are given at the end of this syllabus. Other commonly used system of units - fps and cgs. (iii) Measurements using common instruments (metre rule, Vernier calipers and micrometer 85

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