Physics MCQs for 9th Class (Punjab Board)

This page has over 3,400 multiple-choice questions for Physics (9th Class (Punjab Board)), arranged in 9 chapters and 33 topics. The chapters include Physical Quantities and Measurements, Kinematics, Dynamics, Turning Effects of Force and Work, Energy and Power. Every question has four options, an instant answer and, where available, a short explanation.

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Chapters and topics

  • Physical Quantities and Measurements 4 topics · 461 MCQs
  • Kinematics 4 topics · 434 MCQs
  • Dynamics 5 topics · 512 MCQs
  • Turning Effects of Force 3 topics · 312 MCQs
  • Work, Energy and Power 4 topics · 412 MCQs
  • Mechanical Properties of Matter 4 topics · 416 MCQs
  • Thermal Properties of Matter 3 topics · 307 MCQs
  • Magnetism 4 topics · 406 MCQs
  • Nature of Science 2 topics · 210 MCQs

Sample Physics MCQs

Try these questions, then open the full practice to work through every chapter. Tap “Show the answer” after you choose.

Q1. 2.7183 rounded off to 3 significant figures is:

  1. 2.7
  2. 2.718
  3. 2.72
  4. 2.71
Show the answer

Answer: C. 2.72

Keep 3 significant figures; look at the next digit — if it is 5 or more round up, otherwise leave the last kept digit unchanged. Answer: 2.72.

Q2. Two vectors of 5 N and 5 N act in opposite directions. The resultant is:

  1. 10 N
  2. 5 N
  3. 7.07 N
  4. 0 N
Show the answer

Answer: D. 0 N

Equal and opposite vectors cancel: 5 − 5 = 0.

Q3. If the value of g were doubled, the weight of a body would:

  1. double
  2. become four times
  3. stay the same
  4. halve
Show the answer

Answer: A. double

The correct answer is “double”. W = mg: W is proportional to g.

Q4. The first step in finding the CG of an irregular lamina with a plumb line is to:

  1. weigh the lamina
  2. hang the lamina freely from a pin through one hole
  3. cut it into squares
  4. measure its area
Show the answer

Answer: B. hang the lamina freely from a pin through one hole

Then hang the plumb line from the same pin.

Q5. A 75 kg object is at a height of 20 m above the ground. Its gravitational potential energy is (g = 10 N/kg):

  1. 150000 J
  2. 7500 J
  3. 15000 J
  4. 1500 J
Show the answer

Answer: C. 15000 J

The correct answer is “15000 J”. Ep = mgh = 75 × 10 × 20 = 15000 J.

Q6. A rapidly falling barometer reading usually indicates:

  1. no change
  2. clear, dry weather
  3. an earthquake
  4. stormy or rainy weather is coming
Show the answer

Answer: D. stormy or rainy weather is coming

Changes in atmospheric pressure indicate changes in weather: falling pressure often brings rain and storms; high steady pressure brings fair weather.

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