Crosswords June 3, 2020 Physics Crossword 1 [WpProQuiz 2] AcrossDownAcross 3. For uniform motion, velocity is the same as the average ______ at all instants. 5. Motion in a plane can be treated as _________ of two separate simultaneous onedimensional motions along two perpendicular directions. 8. The product of force and time, which is the change in momentum of the body remains a measurable quantity. This product is called _______. 10. Study of motion of objects along a straight line, also known as ______ motion. 11. The total momentum of an isolated system of interacting particles is _______. 13. The shape of the trajectory of the motion of an object is not determined by the acceleration alone but also depends on the _______ conditions of motion. 14. ______ means ‘resistance to change’. 15. The result of every measurement by any measuring instrument contains some uncertainty. This uncertainty is called _____. Down 1. If the net external force on a body is zero, its _______ is zero. 2. ______always occur in pairs. 4. In ______, we study ways to describe motion without going into the causes of motion. 6. An object that is in flight after being thrown or projected is called a _______. 7. Basically, the difference is that a _______ is associated with a vector but not with a scalar. 9. If an object moving along the straight line covers equal distances in equal intervals of time, it is said to be in _______ motion along a straight line. 12. The Aristotelian law of motion may be phrased thus: An external force is required to keep a body in _______.