📌 Topics Covered in Exercise – Chapter 1 (Physical Quantities and Measurements)
The exercise questions in this chapter are based on these topics:
1. Definitions
Define physical quantities and non-physical quantities.
Define base and derived quantities.
Define scientific notation.
Define significant figures.
Define precision and accuracy.
Define least count.
2. Differences
Differentiate between base and derived quantities.
Differentiate between precision and accuracy.
Differentiate between systematic and random errors.
3. Numerical Problems
Convert numbers into scientific notation.
Round off numbers to significant figures.
Solve problems using vernier callipers (finding length).
Solve problems using screw gauge (finding diameter).
Apply zero error correction.
4. Explanations
Explain the SI system of units.
Explain SI prefixes with examples.
Explain the working of vernier callipers.
Explain the working of screw gauge.
Explain the displacement can method.
Explain types of errors in measurements.
5. Short Questions
What is the least count of vernier callipers?
What is the least count of micrometer screw gauge?
What is zero error? How is it corrected?
What is the use of measuring cylinder?
What is the principle of physical balance?
6. Practical Questions
How do you measure the diameter of a wire using screw gauge?
How do you measure the volume of a irregular object using displacement can?
How do you read a vernier callipers?