COMSATS NTS-based Test Physics (NAT-IE / NAT-IM / NAT-ICS) Syllabus

Physics (NAT-IE / NAT-IM / NAT-ICS) syllabus — full chapter and topic list

Expand any chapter to see its topics and sub-topics. This is the whole examinable outline for Physics (NAT-IE / NAT-IM / NAT-ICS) in COMSATS NTS-based Test, not a summary of it.

1. 1

   Mechanics

   4 topics

   • Motion and Kinematics
   • Force and Newton's Laws
   • Work, Energy and Power
   • Momentum and Collisions
2. 2

   Waves and Oscillations

   3 topics

   • Simple Harmonic Motion
   • Wave Properties
   • Sound Waves
3. 3

   Heat and Thermodynamics

   3 topics

   • Temperature and Heat Transfer
   • Laws of Thermodynamics
   • Kinetic Theory of Gases
4. 4

   Electricity and Magnetism

   3 topics

   • Electrostatics
   • Current Electricity and Ohm's Law
   • Magnetism and Electromagnetic Induction
5. 5

   Modern Physics

   3 topics

   • Atomic Structure
   • Photoelectric Effect
   • Nuclear Physics
6. 6

   Optics

   3 topics

   • Reflection and Refraction
   • Lenses and Mirrors
   • Interference and Diffraction

Physics (NAT-IE / NAT-IM / NAT-ICS) flashcards for COMSATS NTS-based Test

20 of 51 cards from the Physics (NAT-IE / NAT-IM / NAT-ICS) deck — real questions with worked answers.

1. Define displacement and state how it differs from distance.

   Displacement is the shortest straight-line distance from the initial to the final position, with direction (a vector). Distance is the total path length traveled (a scalar) and is always greater than or equal to the magnitude of displacement.

2. What are the three equations of motion for uniform acceleration?

   v = u + at; s = ut + ½at²; v² = u² + 2as, where u = initial velocity, v = final velocity, a = acceleration, t = time, s = displacement.

3. For a body thrown vertically upward, what are its velocity and acceleration at the highest point?

   At the highest point the velocity is zero, but the acceleration is g (9.8 m/s²) directed downward.

4. What is the difference between speed and velocity?

   Speed is the rate of change of distance (scalar); velocity is the rate of change of displacement (vector, has direction).

5. State the relationship between linear velocity (v) and angular velocity (ω) in circular motion.

   v = rω, where r is the radius of the circular path and ω is the angular velocity in radians per second.

6. State Newton's First Law of Motion (Law of Inertia).

   A body at rest remains at rest and a body in motion continues in uniform motion in a straight line unless acted upon by a net external force.

7. State Newton's Second Law of Motion and give its formula.

   The rate of change of momentum is directly proportional to the applied force and is in the direction of the force. F = ma (force = mass × acceleration).

8. State Newton's Third Law of Motion.

   For every action there is an equal and opposite reaction. The forces act on two different bodies.

9. Define the newton (N), the SI unit of force.

   One newton is the force that gives a mass of 1 kg an acceleration of 1 m/s². 1 N = 1 kg·m/s².

10. What is the formula for the force of friction in terms of the normal force?

    f = μN, where μ is the coefficient of friction and N is the normal (perpendicular) force pressing the surfaces together.

11. Define work and give its formula and SI unit.

    Work is the product of force and the displacement in the direction of the force: W = Fd cos θ. SI unit is the joule (J) = N·m.

12. State the work-energy theorem.

    The net work done on a body equals the change in its kinetic energy: W_net = ½mv² − ½mu² = ΔKE.

13. Give the formulas for kinetic energy and gravitational potential energy.

    Kinetic energy KE = ½mv²; gravitational potential energy PE = mgh, where h is height above the reference level.

14. Define power and state its SI unit and formula.

    Power is the rate of doing work: P = W/t = Fv. SI unit is the watt (W) = J/s. 1 horsepower = 746 W.

15. State the law of conservation of energy.

    Energy can neither be created nor destroyed; it only changes from one form to another. The total energy of an isolated system remains constant.

16. Define momentum and give its formula and SI unit.

    Momentum is the product of mass and velocity: p = mv. It is a vector. SI unit is kg·m/s.

17. State the law of conservation of linear momentum.

    In the absence of an external force, the total momentum of an isolated system remains constant: m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂.

18. Distinguish between elastic and inelastic collisions.

    In an elastic collision both momentum and kinetic energy are conserved. In an inelastic collision momentum is conserved but kinetic energy is not (some converts to heat, sound, etc.).

19. Define impulse and state its relationship to momentum.

    Impulse is the product of force and time: J = Ft. Impulse equals the change in momentum: Ft = Δp = mv − mu. Unit: N·s.

20. What happens to the velocities when two bodies of equal mass undergo a head-on elastic collision and one is initially at rest?

    They exchange velocities: the moving body stops and the stationary body moves off with the original velocity of the first.

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