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Some Key Pionts Of Chapter Motion

_1 ➜ Newton first law is called law of inertia._ _2 ➔ The distance in particular direction is called D͟i͟s͟p͟l͟a͟c͟e͟m͟e͟n͟t͟._ _3  ➜ Magnitude of displacement is distance._ _4 ➔ Rate of change of displacement is called V͟e͟l͟o͟c͟i͟t͟y͟._ _5 ➜ Velocity is vector quantity._ _6 ➔  Magnitude of velocity is S͟p͟e͟e͟d͟._ _7 ➜ Newton second law is also called  L͟a͟w͟ O͟f͟ a͟c͟c͟e͟l͟a͟r͟a͟t͟i͟o͟n͟_. _8 ➜ Bodies fallng freely under the action of gravity provide good example of uniform acceleration._ _9 ➜ The value of g is mass independent._ _10  ➔ Newton dyne and pound are units of force._ _11 ➔ The value of g is zero at the center of earth._ _12 ➔ If the object moves downword the value of g is positive and vice versa._ _13  ➔ The value of g is greater at pole than equator._ _14 ➔ The velocity of short interval of time  or the velocity in which time approach to zero is called instantaneous velocity._ _15 ➔ If an object which covered equal displacement  in equa...