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Class 9 Science - Chapter : Motion 50. MCQs

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Class 9 Science – Chapter: Motion 50. MCQs  1. An object is thrown vertically upwards. Its acceleration at the highest point is: A) 0 m/s² B) 9.8 m/s² downward C) 9.8 m/s² upward D) Cannot be determined 2. Which of the following remains constant in uniform circular motion? A) Velocity B) Acceleration C) Speed D) Displacement 3. A car moves with velocity for time and covers distance . Which is correct? A)  B)  C)  D)  4. If an object returns to its starting point after a journey, its displacement is: A) Zero B) Equal to total distance C) Infinite D) None of these 5. The SI unit of displacement is: A) m/s B) m/s² C) metre D) second 6. Which graph represents an object at rest? A) Curved s-t graph B) Straight s-t line parallel to time axis C) Sloped s-t line D) None of these 7. A train travels 30 km at 20 km/h and next 70 km at 70 km/h. The average speed is closest to: A) 40 km/h B) 50 km/h C) 60 km/h D) 70 km/h 8. When velocity and acceleration have opposite sign...
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