Course Content
Electromagnetic Waves
Electromagnetic waves (EM waves) are waves that can travel through a vacuum, unlike sound waves which require a medium. They are generated by vibrating electric charges and consist of both electric and magnetic components.
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Introduction
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Sources and Detection
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Applications of Electromagnetic Waves
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ELECTROMAGNETIC DOMAIN THEORY
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DOMAIN THEORY
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CURRENT-CARRYING CONDUCTORS
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ELECTROMAGNETIC INDUCTION
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TRANSFORMERS
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Magnetic and Electromagnetism
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Magnetism
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Methods of Making a Magnet
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Soft and Hard Magnetic Materials
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Demagnetization
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Electronics
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Electronics Overview
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Conductors, Semiconductors, and Insulators
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Diodes and Their Operation
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Electronic Components
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Types of Extrinsic Semiconductors
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Applications of Diodes
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Analog and Digital Electronics
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Analogue Electronics:
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Digital Electronics:
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Characteristics
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Differences Between Analogue and Digital Circuits:
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Moments of Forces
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Definition:
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Principle of Moments
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Force and Torque
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Applications of the Principle of Moments
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Centre of Mass
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Uniform Circular Motion
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Uniform Circular Motion (Best Revised)
Definition:
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Centripetal Force
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Applications
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Electromagnetic Domain Theory II
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Comprehensive domain theory
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Nuclear Physics
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Nuclear Physics Overview:
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Physics for MSCE Form 4: Online Courses and Study Materials

Principle of Moments for a Body in Equilibrium

Materials:

  • Metre ruler
  • Weights
  • Strings

Explanation:

  • In equilibrium, the clockwise moment equals the anticlockwise moment.
  • For a body to be in equilibrium, the sum of clockwise moments must be equal to the sum of anticlockwise moments about any point.


Clockwise Moment=Anticlockwise Moment

Force×Distance=Force×Distance

F D1×W1=W2×D2

Principle of Moments:

  • States that for a body to be in equilibrium, the sum of clockwise moments about any point must be equal to the sum of anticlockwise moments about that point.
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