Page 517 - SUBSEC October 2017_Neat

UNIT 1
MODULE 1: MECHANICS (cont’d)

SPECIFIC OBJECTIVES EXPLANATORY NOTES SUGGESTED PRACTICAL
ACTIVITIES

Effects of Forces (cont’d)

Students should be able to:

4.3. use the concept of Include Stoke’s Law for Use a steel ball bearing in a
terminal velocity to solve viscous drag = 6πηrv clear glass tube of clear
problems involving motion viscous liquid, for example,
through a fluid; glycerine.

4.4. apply the principle of See Appendix II for
moments to solve suggested practical
problems; and, activity.

4.5. use the concepts of static Sum of forces equals zero.
and dynamic equilibria to Sum of torques equals
solve problems. zero.

5. Conservation of Energy

Students should be able to:

5.1. use the concept of work =
as the product of force
and displacement in the
direction of the force;

5.2. use the formula for kinetic A non-calculus approach
2
1
energy = ; may be used.

2

5.3. distinguish between Such as gravitational,
different types of potential electrical, elastic and
energy; strain energy.

5.4. use the formula
∆ = ∆ℎ

for potential energy
changes near the Earth's
surface;

5.5. apply the concept of
power as the rate of doing = , =
work;

CXC A16/U2/17 17