Motion and Time Worksheet-2
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Which of these is not a unit of speed?
(a) Meter/second (b) Second/meter
(c) Kilometer/hour (d) Meter/minute
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The displacement-time graphs of two bodies A and B are shown in Fig. Which of the following statements is correct?
(a) A is moving faster than B
(b) B is moving faster than A
(c) B is always 20 m behind A
(d) A is always 20 m behind B
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Physical quantity which we can't obtain from a distance-time graph is
(a) Speed (b) Time taken
(c) Change in position (d) Change in weight
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Oscillations are set in a simple pendulum whose length is 2 m and mass of the bob is 2 kg. Its time period
(a) Is always constant
(b) Increases slowly
(c) Decreases slowly
(d) First increases then decreases
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Sheela takes 15 minutes from her house to reach school on her bicycle with a speed of 2 m/s. The distance between her house and the school is
(a) 1.8 km (b) 3 km (c) 1 km (d) 2.5 km
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Study the distance time graph of a toy car given here and choose the incorrect statement from the following:
(a) The toy car is fastest during first 10 seconds
(b) The toy car is slowest in between 10 and 20 seconds
(c) Distance travelled during last 10 seconds in 5 m
(d) None of these
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A scooterist covers a distance of 3 km in 5 minutes. He travels with a speed of
(a) 100 ms–1 (b) 360 ms–1 (c) 100 cm s–1 (d) 600 m min–1
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The figure shows the distance-time graph for the motion of two vehicles X and Y. Which one of them is moving faster?
(a) X
(b) Y
(c) Both move with same speed
(d) Y is faster initially, then X gets faster
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Time period of a simple pendulum depends upon its
(a) Mass of its bob
(b) Length
(c) Both Mass of its bob and Length
(d) None of these
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A body moves with uniform velocity. Which of the graphs shown here is a graph of velocity against time for this motion?
(a)
(b)
(c)
(d)
Answer Key:
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(b)
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(d)
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(d)
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(a)
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(a)
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(c)
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(d)
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(a)
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(b)
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(b)