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8.1.1 MOTION ALONG A STRAIGHT LINE The simplest type of motion is the motion along a straight line. We shall first learn to describe this by an example. Consider the motion of an object moving along a straight path. The object starts its journey from O which is treated as its reference point (Fig. 8.1). Let A, B and C represent the
- What Is Motion?
- Types of Motion
- Examples of Motion
We can define motion as the change of position of an object with respect to time. A book falling off a table, water flowing from the tap, rattling windows, etc., all exhibit motion. Even the air that we breathe exhibits motion! Everything in the universe moves. We live in a universe that is in continual motion. The fundamental particle of matter, t...
We might have noticed that different objects move differently. Some objects move in a curved path, some in a straight path and a few others in a different way. According to the nature of the movement, motion is classified into three types as follows: 1. Linear Motion 2. Rotary Motion 3. Oscillatory Motion
Now let us understand motion clearly with the help of a few examples. 1. Our daily activities, like walking, running, closing the door, etc. involve motion. There is a change of position of the object involved in these activities. 2. The flow of air in and out of our lungs is also an example of motion. 3. The automobiles that carry passengers from ...
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66 PHYSICS just as the ordinary numbers*. For example, if the length and breadth of a rectangle are 1.0 m and 0.5 m respectively, then its perimeter is the sum of the lengths of the four sides, 1.0 m + 0.5 m +1.0 m + 0.5 m = 3.0 m. The length of each side is a scalar and the perimeter is also a scalar. Take another example: the maximum and
Examples of different kinds of motion are given below. Translational – It is the type, where an object moves along a path in any of the three dimensions. Rotational – It is the type, where an object moves along a circular path about a fixed axis.
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- What is Periodic Motion?It is the type of motion that repeats itself after certain intervals of time.
- What is Rotational Motion?A motion where an object moves along a circular path about a fixed axis is called Rotational Motion.
- What is Newton’s First Law of Motion?Any object will remain in its existing state of motion or rest unless a net external force acts on it.
- State Newton’s Third Law of Motion.Newton’s Third Law of Motion states that for every action there is an equal and opposite reaction.
- What is Oscillatory Motion?It is the type of motion which is repetitive within a time frame. If it is mechanical it is called vibration.
[BL] Have students practice describing simple examples of motion in the class from different reference frames. For example, slide a book across a desk. For example, slide a book across a desk. Ask students to describe its motion from their reference point, from the book's reference point, and from another student's reference point.
Figure 4.4 The force exerted by a stretched spring can be used as a standard unit of force. (a) This spring has a length x when undistorted. (b) When stretched a distance Δx , the spring exerts a restoring force, Frestore , which is reproducible. (c) A spring scale is one device that uses a spring to measure force.
Motion. The change in the position of the object with respect to time is called the motion of that object. The change in motion is based on the reference point of an individual. Let’s take an example of the 2 cars (A and B) moving at a constant speed that you observe from your school window. From your reference point, the cars are in motion ...
