CBSE Class 9 Physics - Sound - Very Short Answer-Based Questions (VSQA)Q1. Define vibration?Answer: Rapid to and fro motion of an object.Q2. How is sound produced?Answer: Vibrating objects produce sou
Class 9 - Physics - What is the difference between Gravitation Constant (G) and Gravitational acceleration (g)The gravitational constant (G) is a fundamental physical constant that appears in Newton's
CBSE Class 9 - Physics - Work (Questions and Answers)Q1: 2 Newton-metre is how many joules?Answer: ∵ 1 Nm = 1J ∴ 2Nm = 2JQ2: In the CGS system- what is the unit for Work?Answer: ergQ3: Is work sca
Class IX Science Term 1 MCQs (2021-22)Q1. Rusting of an article made up of iron is called(a) corrosion and it is a physical as well as chemical change(b) dissolution and it is a physical change(c) cor
Gravitation 1 - Mark Questions (Solved) CBSE Class 9 - PhysicsQ1: Who formulated the universal law of Gravitation?Answer: Isaac NewtonQ2: What is free fall?Answer: When an object falls from any height
