Class 9 > Unit # 01: Physical Quantities & Measurement > Multiple Choice Questions

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Chapter # 1: Physical Quantities and Measurements — Solved Textbook MCQs

Lecture Overview

Practice the interactive multiple choice questions based on the solved review exercises of Unit 1: Physical Quantities & Measurements from Talha's Physics Academy.

Source Video: Unit 1 Physical Quantities & Measurements | Class 9 Physics | Solved Textbook M.C.Qs

Interactive Practice MCQs

1. The reading of a Vernier Calipers with main scale reading 6.5 cm and 5th Vernier division coinciding (least count = 0.01 cm) is:

• A) 6.05 cm
• B) 6.55 cm
• C) 5.65 cm
• D) 6.50 cm

2. Ten identical steel balls (each of mass 27 g) are immersed in a measuring cylinder containing water, raising the water level from 20 cm³ to 50 cm³. The density of steel is:

• A) 2.7 g/cm³
• B) 7.9 g/cm³
• C) 9 g/cm³
• D) 10 g/cm³

3. An object of mass 100 g is immersed in water, changing the water level from 90 cm³ to 130 cm³. The density of the material is:

• A) 2.5 g/cm³
• B) 1.5 g/cm³
• C) 3.0 g/cm³
• D) 5.0 g/cm³

4. The system of measurement in which the unit of distance is meter was introduced as:

• A) Prefixes
• B) International System of Units (SI)
• C) British Engineering System
• D) CGS System

5. An error of an instrument due to a constant systematic fault is known as:

• A) Random error
• B) Human error
• C) Systematic error
• D) Zero error

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