Page 515 - SUBSEC October 2017_Neat

UNIT 1
MODULE 1: MECHANICS (cont’d)

SPECIFIC OBJECTIVES EXPLANATORY NOTES SUGGESTED PRACTICAL
ACTIVITIES

5. Motions (cont’d)

Students should be able to:

3.15. draw F - t graphs; For example, car crash.

3.16. interpret F - t graphs;

3.17. solve problems related to Problems should include Demonstrate:
Newton's laws of motion; uniform acceleration only. First Law using the coin drop
experiment; Second Law
using inclined plane varying
mass and recording
acceleration or experiment
using Atwood’s machine;
and Third Law using a
Balloon Propeller (blow up a
balloon).

3.18. express angular For example, the difference
displacement in radians; in backlift and bat speed in
cricket, the windmill dunk in
basketball or the racket
movement to give various
spins on the ball in table
tennis can be used to
explain this.

3.19. apply the concept of An observation of road
angular velocity to damage in bends or curves
problems involving circular due to the provision of
motion; centrifugal force to provide
the circular motion.

2
3.20. use equations for a = rω
centripetal acceleration
v 2
and centripetal force; a =
r
2
F = mrω

v 2
F = m
r

CXC A16/U2/17 15