Basic Science Solutions for Class 6 Science Chapter 12 Motion are provided here with simple step-by-step explanations. These solutions for Motion are extremely popular among Class 6 students for Science Motion Solutions come handy for quickly completing your homework and preparing for exams. All questions and answers from the Basic Science Book of Class 6 Science Chapter 12 are provided here for you for free. You will also love the ad-free experience on Meritnationâ€™s Basic Science Solutions. All Basic Science Solutions for class Class 6 Science are prepared by experts and are 100% accurate.

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A body is said to be in motion if its position with respect to the observer changes with time.

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The houses on the street are in motion relative to us.

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Rectilinear motion refers to the motion of a body in a straight line.

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A tennis ball will have a curvilinear motion.

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Yes, a body has two types of motion at the same time. For example, the earth rotates about its axis and also revolves around the sun at the same time.

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Yes, a body may appear in a state of rest to one observer and in a state of motion to another observer at the same time.
For example, to a person sitting near the window of a moving train, the train standing outside will appear to be moving. But to a person standing outside, it will seem stationary.

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 Rotational motion Circular motion It is the motion of an object about an axis and its different parts move through different distances, without any change in its position. It is the motion of an object in a circular path and its position changes continuously. Example: Movement of the earth about its axis. Example: A ball tied to a thread and whirled around.

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(a) The oscillatory motion of an object is defined as the periodic motion of that object about its position of rest. No, oscillatory motion is not always periodic.
(b) Yes, rotational motion can also be periodic.

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(a) rectilinear
The motion of a stone dropped from a roof is rectilinear because the stone will follow a linear path.

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(c) Periodic.
The motion of the arms of soldiers in a march past is periodic because their arms will move to-and-fro at a fixed interval.

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(a) Periodic.
The motion of a pendulum is periodic.

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(a) Rotational and linear motion.
The screw driver is an example of both rotational and linear motion.

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1. The motion of a striker moving across a carrom board is an example of random motion.
2. The motion of a potter's wheel is an example of rotational  motion.
3. The movement of the earth about its axis is an example of rotational motion.
4. The movement of the moon around the earth is periodic motion.

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False. The bag is at rest with respect to the floor of the moving bus.

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Yes, the motion of the body is periodic because its motion is repeating at a fixed time interval.

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Yes, the blades of a flying helicopter have different kinds of motion, i.e., rotational and circular motion.