Phy – Chapter 3: Dynamics

SSC-I (9th) · Physics · Afaq Sun

Test your understanding of Dynamics with 22 syllabus-aligned MCQs designed for SSC-I (9th) Afaq Sun students.

Use this short practice session to revise key concepts, identify weak areas, and prepare for your board examination.

Sample Questions

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Chapter 3: Dynamics Concept of Force: Definition of force, Effects of force, Contact forces, Non-contact forces, Unit newton | Fundamental Forces: Gravitational force, Electromagnetic force, Strong nuclear force, Weak nuclear force | Forces in a Free-Body Diagram: Free-body diagram, Weight, normal reaction, friction, tension, Net force | Newton's Laws of Motion: First law (inertia), Second law (F = ma), Third law (action and reaction), Examples | Limitations of Newton's Laws of Motion: High speed (relativity), Very small scale (quantum mechanics), Strong gravity, Inertial frames | Mass and Weight: Mass, Weight, W = mg, Variation of weight, Difference between mass and weight | Mechanical and Electronic Balances: Mechanical balances, Electronic balances | Friction: Kinetic friction, Rolling friction, Dissipative effect of friction, Terminal velocity, Methods to reduce friction | Momentum and Impulse: Momentum p = mv, Impulse, Impulse-momentum relation, Airbags and cushioning | Principle of Conservation of Momentum: Isolated system, Collisions, Recoil of a gun, Explosions and rockets

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SSC-I (9th) Physics Afaq Sun Series Chapter 3: Dynamics

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