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Phy – Quarter 1

SSC-I (9th) · Physics · Afaq Sun

Test your understanding of Physical Quantities and Measurements 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

See what you’ll practice in this quiz.

  1. Which of the following is a non-physical quantity?
  2. Which SI prefix represents the factor 10^-6?
  3. The least count of a micrometer screw gauge with a pitch of 0.5 mm and 50 circular scale divisions is:

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What You’ll Practice

  • Chapter 1: Physical Quantities and Measurements Physical and Non-Physical Quantities: Physical quantities, Non-physical quantities, Comparison by measurability, instrument, value and unit | Base and Derived Physical Quantities: Base quantities, Derived quantities, Examples, Measurement and standards | International System of Units: Seven SI base units, Derived units, Prefixes (kilo, mega, milli, micro, nano), Conversion of prefixes | Scientific Notation: Form a x 10^n, Large and small numbers, Conversion to and from scientific notation | Length Measuring Instruments: Metre rule / tape, Vernier callipers, Micrometer screw gauge, least count and zero error | Mass Measuring Instruments: Beam balance, Electronic balance, Spring balance, Correct use of a balance | Time Measuring Instruments: Clocks and stop-watches, Digital timers, Measuring period of a pendulum, Least count of timers | Volume Measuring Instruments: Measuring cylinder, Reading the meniscus, Volume of regular solids, Displacement method for irregular solids | Errors in Measurements: Systematic errors, Random errors, Human errors, Zero error, Reducing errors by repetition | Uncertainty in a Measurement: Meaning of uncertainty, Uncertainty from least count, Reporting uncertainty, Link with significant figures | Significant Figures: Rules for counting significant figures, Significant figures in calculations, Scientific notation | Precision and Accuracy: Definition of precision, Definition of accuracy, Relation to errors, Examples | Rounding off the Digits: Rounding rules, Significant figures versus decimal places, Rounding in calculations
  • Chapter 2: Kinematics Scalars and Vectors: Scalar quantities, Vector quantities, Graphical representation of vectors, Examples | Rest and Motion: State of rest, State of motion, Frame of reference, Relative motion | Types of Motion: Translational motion, Rotational motion, Circular motion, Vibrational motion, Random motion | Distance and Displacement: Definition of distance, Definition of displacement, Scalar versus vector, Examples | Speed and Velocity: Speed, Velocity, Average speed and velocity, Uniform and variable speed, Unit conversions | Acceleration: Definition, Positive and negative acceleration, Uniform acceleration, Examples | Graphical Analysis of Motion: Distance-time graphs, Speed-time graphs, Interpreting shapes of graphs | Gradient of a Distance-Time Graph: Gradient as speed, Zero gradient, Tangent to a curve, Calculation of speed | Speed-Time Graph: Constant speed, Uniform acceleration, Deceleration, Rest | Gradient of a Speed-Time Graph: Gradient as acceleration, Positive, negative and zero gradient, Calculation of acceleration | Area Under Speed-Time Graph: Distance from area, Rectangle, triangle and trapezium areas, Estimation for curves | Equations of Motion and Solving Problems: First equation, Second equation, Third equation, Problem-solving steps | Free Fall Acceleration: Free fall, Acceleration due to gravity g, Upward and downward motion, Galileo's observation
  • 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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