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Motion and Time Test - 19

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Motion and Time Test - 19
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  • Question 1
    1 / -0
    The distance-time graph of the non-uniform motion is a _________ line
    Solution
    The distance-time graph of the non-uniform motion is a curved line as it covers unequal distances in equal intervals of time, hence option AA is correct.
  • Question 2
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    Which of the following is not an example of motion?
    Solution
    A tree is a still object that doesn't move, hence it is an example of a non-moving object, thus option CC is correct.
  • Question 3
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    Which of the following represents uniform motion?
    Solution
    We know that if an object is traveling with uniform motion, it is moving in a straight line at a constant speed thus a car traveling at a constant speed is in uniform motion.
    Now, a ball falling from a building experiences the same forces and makes the fall of the ball a uniform motion, similarly, a runner at their top speed runs in that same speed to maintain their rank hence they too have uniform motion. Thus, option DD is correct.
  • Question 4
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    Which of the following is a type of motion?
    Solution
    The change in position of an object with respect to time is known as motion.
    Motion in a straight line is called rectilinear motion.
    In a circular motion, an object moves such that its distance from a fixed point remains the same.
    Motion that repeats itself after some period of time, is called periodic motion
  • Question 5
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    Which of the following is an example of non-uniform motion?
    Solution
    Movement of an asteroid, a car coming to a halt and a bouncing ball, all cover unequal distances in a time interval, hence they all are examples of non-uniform motion. The option D is correct.
  • Question 6
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    When one says an object is moving fast or slow, one is referring to the object's _________.
    Solution
    Speed is the term used when one is determining whether an object is fast or slow, hence option AA is correct. Speed tells us how much distance an object is covering in unit time interval. Faster objects cover greater distances than the slower objects in the same given time interval.
  • Question 7
    1 / -0
    What can help decide which object is moving fast or slow?
    Solution
    The distance moved by objects in a given interval of time can help us to decide which one is faster or slower, hence option CC is correct.
  • Question 8
    1 / -0
    Which of the following correctly defines periodic motion?
    Solution
    A motion that repeats itself after equal intervals of time is known as periodic motion. For example, a swing in motion.
  • Question 9
    1 / -0
    Which of the following is an example of uniform circular motion?
    Solution
    The movement of a body along a circular path is known as a circular motion. When the body moves with a constant speed, it is said to be a uniform circular motion.

    In the given options, movement of blades of a ceiling fan is an example of a uniform circular motion.

  • Question 10
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    One day, hare and tortoise decided to race against each other. They have to cover the distance of 10 km10\ km. Hare decides to use a bicycle and the tortoise decides to use a car. They both started at the same time.
    Who will win the race?
    Solution
    The tortoise wins the race because the car moves at a faster pace than the bicycle.
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