Physics Conceptual Questions SSC-I 2025
Are you preparing for the FBISE Physics SSC-I (9th Class) exams in 2025? This carefully curated paper highlights the most important conceptual questions from the National Book Foundation syllabus to help you focus on key topics and score better.
Important Conceptual Questions for FBISE Exams 2025
CONCEPTUAL QUESTIONS 2025
Chapter 1 - Physical Quantities and Measurement
- Define the term physics. Also write the role of physics in the field of science.
- Which characteristics are found common in every physical quantity.
- Differentiate b/w base and derived quantities.
- Give three advantages of using SI units.
- Give some examples to show that derived quantities are derived from base physical quantities.
- How scalars can be added, subtracted and multiplied?
- Why vectors cannot be added, subtracted and multiplied like scalars?
- How vectors can be represented symbolically/graphically?
- How vectors can be added?
- How measuring cylinder can be used to measure the volume of irregualr shaped solid?
- Differentiate b/w mechanical stopwatch and digital stopwatch.
- Differentiate b/w precision and accuracy.
- Estimate your age in seconds.
Chapter 2 - Kinematics
- Give two situations in which body has covered some distance but displacement is zero.
- Can a body be at rest and in motion at same time? If so, how
- If we drop a piece of paper and a coin, which of them will hit the ground first?
- Write the equations of motion for body at rest.
- Can a car moving towards right have direction of acceleration towards left?
Chapter 3- Dynamics - I
- Why is Newton's first law of motion known as law of inertia?
- Why it is difficult to push a large man on a swing?
- What happens when a bus takes a sharp turn? Why do we feel a push to back when a bus starts moving? Why do we feel a push to forward when a bus stops?
- Differentiate b/w mass and weight.
- Where will your weight be greater, near earth or near moon? What about mass.
- State and prove Newton's second law pf motion in term of momentum.
Chapter 4 - Dynamics - II
- Why is it easier to open a door by applying force at outer edge?
- Why is it easier to loosen or tighten a rusty nut with a long spanner as compared to short one?
- How we can find the centre of gravity of irregular shaped object?
- Why there is a need for second condition of equilibrium if a body satisfies first condition of equilibrium?
- Why vehicals are made heavy at their bottom and kept as low as possible?
- What are the methods of reducing friction?
- Why rolling friction is less than sliding friction?
- What is GPS. How it is used to track something on earth?
Chapter 5 - Pressure and Deformation in Solid
- Why it is difficult to cook food at high altitudes?
- State hooke's law.
- Draw and explain the stress strain curves using Rockwell hardness tester.
- Why does a balloon pop easily with a pin but not with our hands?/Why does a blunt knife cannot cut meat easily?/How does the nail penetrate easily in a surface but a wide bolt cannot?
- How a suction cup gets its sticking force?
- Show by a simple experiment that pressure in liquid increases with depth.
- Describe the operation of hydraulic brake system.
Chapter 6- Work and Energy
- Give situations in which work done on a body is maximum, minimum and negative.
- Show that energy can be converted from one form to another.
- State kinetic energy and also derive its equation.
- Differentiate b/w renewable and non-renewable energy resources.
- What do you know about prepetual motion.
- What is an ideal system. (Efficiency of system)
- By what factor the kinetic kinetic energy would change, if its velocity is doubled?
- An LED bulb has efficiency of 80%. What does it means?
Chapter 7 - Density and Temperature
- How can we find the density of irregular shaped solid object?
- Why plasma is often called the fourth state of matter
- Differentiate different states of matter.
- What do you know about Auroras. Why does it occur?
- Why mercury is preferred to be used as liquid in glass thermometer?
- Why water is not used in liquid in glass thermometer?
- Can we increase internal energy of a substance without increasing its temperature?
Chapter 8 - Magnetism
- Difference b/w different types of magnetic materials.
- How were pigeons used to deliver message in ancient times?
- Explain how birds use earth's magnetic field to navigate?
Chapter 9 - Nature of Science and Physics
- Explain how physics plays an important role in our life?
- Define the followings: Astronomy, Cosmology, Goephysics, Relativistic mechanics, Electromagnetism.
- What determines the validity of a theory?