ICSE (Class X)
Syllabus (2013)
Subject: Science (Physics) Paper - 1
Class: X
There will be one paper of one and half-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).
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. Force, Work, Energy and Power
(i) Contact and non-contact forces; cgs & SI units.
Examples of contact forces (frictional force, normal reaction
force, tension force as applied through strings and force exerted during
collision) and non-contact forces (gravitational, electric and magnetic).
General properties of non-contact forces. cgs and SI units of force and their
relation, Gravitational unit. [No numerical problems]
(ii) Turning forces concept; moment of a force; forces in equilibrium; centre of gravity; (discussions using simple examples and simple direct problems).
Elementary introduction of translation and rotation; moment (turning effect) of a force, also called torque and its cgs and SI units; common examples - door, steering wheel, bicycle pedal, etc.; clockwise and anticlockwise moments; conditions for a body to be in equilibrium ( translational and rotational); principle of moment and its verification using a metre rule suspended by two spring balances with slotted weights hanging from it; simple numerical problems; Centre of gravity (qualitative only) with examples of some regular bodies and irregular lamina (students should be encouraged to try it out).