Units for distance, time Distinction between vector and scalar quantities Composition of perpendicular vectors Resolution of co-planar vectors Definitions and units for displacement, velocity and acceleration Equations of motion
MANDATORY EXPERIMENTS: 1. Measurement of velocity and acceleration
ACTIVITIES:
Finding resultants of vectors (Newton balances and pulleys) Use of distance–time, velocity–time graphs
SCIENCE,TECHNOLOGY AND SOCIETY: Vector nature of physical quantities (everyday examples such as velocity, acceleration and force) Sports (athletics)
PHYSICAL QUANTITIES INTRODUCED IN THIS CHAPTER: Quantity
*degree is not the SI unit, but is acceptable for most calculations LINEAR MOTION 35
Name of SI unit metre metre second metre
metre per second
metre per second squared degree*
Symbol for unit m m s
m
m s1 m s2 °
definition of velocity definition of displacement definition of acceleration
Newton’s first equation of motion, derivation required at higher level only Newton’s second equation of motion, derivation required at higher level only Newton’s third equation of motion, derivation required at higher level only
