Class 9 Chapter 4 Physics Exercise Short Questions PDF

Download Class 9 Chapter 4 Physics Exercise Short Questions PDF for quick revision and exam preparation. This PDF is helpful for 9th class students who want to prepare important exercise short questions according to the new syllabus. Students can use it to revise chapter-wise questions, improve their concepts, and prepare better for school tests and board exams.

Chapter 4 Short Questions: Turning Effects of Force

These are the exercise short questions from Chapter 4 of the Class 9 Physics textbook. In this chapter you are expected to be able to state, from memory and in two or three lines:

• Resolving a force into horizontal and vertical components.
• Torque, its formula, its unit, and what it depends on.
• The principle of moments, stated precisely.
• A couple, and one everyday example of it.
• Centre of gravity, and where it lies in a uniform body.
• The two conditions of equilibrium, and the three kinds of equilibrium.

Wording That Costs Marks in This Chapter

Short answers in Turning Effects of Force are marked on precision rather than length. These are the specific slips that lose marks here:

• Defining torque without the word perpendicular.
• Giving only one condition of equilibrium when the question asks for the conditions.
• Confusing a couple with a single force.

Working Through the Set

Cover the answer, write your own version, then compare. Recognising a correct answer is not the same as producing one, and only writing exposes the difference. Mark yourself as strictly as an examiner would: if the unit is missing, count the mark as lost. Come back to anything you got wrong two days later rather than the same evening.

Frequently Asked Questions

What is torque and what does it depend on?

Torque is the turning effect of a force. It equals the force multiplied by the perpendicular distance from the pivot to the line of action of the force, so it grows with either a larger force or a greater distance.

Is this PDF free and based on the new syllabus?

Yes to both. It is free with no sign-up, and it follows the current Class 9 Physics textbook, in which Turning Effects of Force is Chapter 4 of nine.

Related Class 9 Physics Resources

For the reasoning answers from the same chapter see the Chapter 4 constructive questions, and test yourself with the Chapter 4 online test. Continue with Chapter 3 and Chapter 5, or sit a full paper from the 25 Class 9 Physics guess papers. Everything else is on the Class 9 Physics page.