Physics MCQs for 9th Class (Federal Board)

This page has over 3,500 multiple-choice questions for Physics (9th Class (Federal Board)), arranged in 9 chapters and 34 topics. The chapters include Physical Quantities and Measurement, Kinematics, Dynamics, Turning Effect of Forces and Work, Energy and Power. Every question has four options, an instant answer and, where available, a short explanation.

Start practising Physics free →No registration needed

Chapters and topics

  • Physical Quantities and Measurement 5 topics · 571 MCQs
  • Kinematics 4 topics · 429 MCQs
  • Dynamics 5 topics · 512 MCQs
  • Turning Effect of Forces 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 · 308 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. The resultant of two perpendicular vectors A and B is given by:

  1. √(A² + B²)
  2. A − B
  3. A² + B²
  4. A + B
Show the answer

Answer: A. √(A² + B²)

Perpendicular vectors form the two shorter sides of a right-angled triangle; by Pythagoras, R = √(A² + B²).

Q2. A speed of 108 km/h is equal to:

  1. 0.108 m/s
  2. 30 m/s
  3. 388.8 m/s
  4. 60 m/s
Show the answer

Answer: B. 30 m/s

1 km/h = 1000 m ÷ 3600 s = 1/3.6 m/s, so 108 km/h = 108 ÷ 3.6 = 30 m/s.

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

  1. double
  2. stay the same
  3. halve
  4. become four times
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. measure its area
  2. hang the lamina freely from a pin through one hole
  3. weigh the lamina
  4. cut it into squares
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. 1500 J
  2. 7500 J
  3. 150000 J
  4. 15000 J
Show the answer

Answer: D. 15000 J

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

Q6. A rapidly falling barometer reading usually indicates:

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

Answer: A. 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.

Practise all over 3,500 questions

Chapter-wise practice with instant answers, timed tests and (with a free account) your progress saved.

Start practising →