Page 510 - SUBSEC October 2017_Neat

 UNIT 1: MECHANICS, WAVES, PROPERTIES OF MATTER
MODULE 1: MECHANICS

GENERAL OBJECTIVES

On completion of this Module, students should:

1. understand physical quantities;

2. apply the SI system of units and standard conventions;

3. solve problems of bodies at rest, in uniform motion, or uniformly accelerated motion under
the influence of forces in one and two dimensions;

4. appreciate the effects of forces acting on a body;

5. understand the principle of conservation of energy;

6. design and carry out experiments to test relationships between physical quantities; and,

7. appreciate that the measurement of a physical quantity is subject to uncertainty.

Please note that Module 1, Specific Objectives 1.1-2.6 which cover Physical Quantities and SI Units
are relevant to both Unit 1 and Unit 2.

SPECIFIC OBJECTIVES EXPLANATORY NOTES SUGGESTED PRACTICAL
ACTIVITIES

1. 1. Physical Quantities

Students should be able to:

1.1. express physical Some quantities are
quantities as a dimensionless, for
numerical magnitude and example, refractive index,
unit; relative density.

1.2. distinguish between
scalar and vector
quantities, and state
examples;

1.3. resolve vectors; Both graphically and by The resolution of vectors
calculation. using strings and masses.
Add and subtract vectors
using components.
For example, air and sea
travel; flying a kite.

CXC A16/U2/17 10