Page 42 - Amos Vusi Msiza Portfolio 216071123

Friction on an incline does negative work
extracting energy from the system.
The equation: E = Heat = Ff · Δx · cos

1800
If an object moves at a constant speed,

then the two forces acting on it are equal
in magnitude but opposite in direction
Work Energy Theorem: The work done

by a resultant force on an object is equal to
the change in its kinetic energy.
Formula:

Wnet = ΔEk = Fres * Δx * cosΘ
The post-interactive lesson phase (Summary and integration phase)

1. Assessment Classwork Memorandum Self-
Study & Master Page 58, Ex 2.4 & 2.6 Study & Master Teacher’s Assessment
Guide Page 22-23 method.
2. Expanded opportunities Enrichment activities Remedial
Mind the Gap Page 45 Ex 4-7 activities
Home activity
-Collaborated
support

including
parents and