Page 56 - Amos Vusi Msiza Portfolio 216071123
P. 56
The net work done by an external/ resultant Solve problems using the work
force on an object/ system equals the energy theorem, i.e. the work
change in kinetic energy of the object or done on an object is equal to the
system (the work-energy theorem) change in its kinetic energy.
W = ΔEk = Ekf - Eki
What you intend the learners to Height affects the magnitude of work done Work done by potential energy
now about the idea (CS)
and kinetic energy
Why is it important for learners Learners will be required to calculate the To wipe out misconceptions
to know this? (CS)
work done for different scenarios in the
tests and exams
What concepts need to be How to find resultant force and to draw free Definition of work
taught before teaching this big body diagrams
idea? (CS)
What else you know about this Calculating power None
idea (that you do not intend
learners to know yet). (CS)
Knowledge about students’ None None
thinking which influences your
teaching of this idea.
(Learners’ prior knowledge-
LPK)
What are typical learners’ 1. An object at rest has no energy. None
misconceptions on this big idea 2. Energy is truly lost in many energy
(Learners’ prior knowledge-
LPK) transformations.

