DAV CLASS 7 SCIENCE CHAPTER 6 MOTION AND TIME SOLUTIONS PDF DOWNLOAD
Motion : MOTION: An Object is said to be in motion if its position changes w.r.t its immediate surroundings and time. REST: An Object is said to be at Rest if its position does not changes w.r.t its immediate surroundings and time. MOTION AND REST ARE RELATIVE TERMS: An Object can be at rest and … Read more