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Dr. Labroo

Chapter 4

A good understanding of the concept of “work”.

Simple problems based on the relationship between force, distance and work:

Work

Force x Distance (Force & Distance are parallel or antiparallel)

Power as the rate at which work is done:

Power

Work

Time

Energy and its relationship to work. Different forms of energy: Elastic potential energy,

Gravitational potential energy and Kinetic energy.

Simple problems based on the following:

Gravitatio nal Potential Energy

Weight x Height

Kinetic Energy

1

2

x (Mass) x (Speed)

2

Simple applications of the work – energy theorem and the conservation of energy principle.

Chapter 5

Vibration as a periodic motion. Understanding of Time Period and Frequency and the relationship between them:

Frequency

Time

1

Period or Time Period

1

Frequency

Wave motion and transfer of energy. Classification of waves as transverse or longitudinal.

Understanding of the following wave characteristics: Amplitude, Wavelength, and wave speed.

Simple problems based on the following relationship:

Speed

Frequency x Waveleng th

Conceptual understanding of the superposition of waves and how that leads to interference and standing wave pattern. Resonance and the Doppler effect.