SOUND Question Bank Question Bank based NCERT Class 9 Science Chapter on Sound. Following questions have been asked in previous CBSE examination papers. Q 1: Define frequency of a wave. Q
Open Text Based Assessment (OTBA) For classes IX & XI 2017 Available Now OTBA Material for Class 9 and Class 11 for this session (2016-2017) is available at CBSE web
Work Energy and Power Question Bank Here is the compilation of questions asked in CBSE Examination papers in last five years. Q1: Is it possible that a body is displaced and yet its work is d
ENERGY TRANSFORMATIONS Worksheet Give examples for the following scenarios of energy transformations. You may choose the answer(s) from the following list of words solar cell- turbine- mixer-
Floatation7 Simple Numerical You Must Know Q1: A force of 200 N acts on a surface of area 10 cm2. Calculate thrust and pressure. How much the pressure changes if the area of contact increases
