Class 9 Chapter 1 Physics Exercise Short Questions PDF New Syllabus

Download Class 9 Chapter 1 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 1 Short Questions: Physical Quantities and Measurements

These are the exercise short questions from Chapter 1 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:

• Base and derived quantities, with an example of each.
• The seven base quantities, their SI units and the correct symbols.
• Prefixes from femto to giga, and the power of ten each represents.
• The least count of a metre rule, a vernier calliper and a screw gauge.
• Significant figures, and how many a given reading contains.
• Writing a measurement in scientific notation.

Wording That Costs Marks in This Chapter

Short answers in Physical Quantities and Measurements are marked on precision rather than length. These are the specific slips that lose marks here:

• Quoting a unit without its symbol, or the symbol with the wrong case — N and n are not interchangeable.
• Confusing the least count of a vernier calliper with that of a screw gauge.
• Giving a prefix the wrong power of ten, especially micro and nano.

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

How many base quantities are there?

Seven: length, mass, time, electric current, temperature, amount of substance and luminous intensity. Everything else in physics is a derived quantity built from these.

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 Physical Quantities and Measurements is Chapter 1 of nine.

Related Class 9 Physics Resources

For the reasoning answers from the same chapter see the Chapter 1 constructive questions, and test yourself with the Chapter 1 online test. Continue with Chapter 2, or sit a full paper from the 25 Class 9 Physics guess papers. Everything else is on the Class 9 Physics page.