Ch.Saqib Tanveer SSS(physics) GCET;CHINIOT

1. Ch.SaqibTanveerSSS(physics)GCET;CHINIOT

2. Types of motion

3. Types of motion Translational motion • . Oscillatory mostion • Rotational motion

4. What Is motion?How are different objects move? Rotation.

5. summary "There are three types of motion that we will study in mechanics. These are TRANSLATION, ROTATION and VIBRATION. Translation is motion along some path from one place to another, like a car moving down a highway. Rotation is motion around some axis, like the Earth's daily motion. Vibration is a back and forth motion like the pendulum of a clock.

6. 1.Translational motion results in a change of location. This category may seem ridiculous at first as motion implies a change in location, but an object can be moving and yet not go anywhere. I get up in the morning and go to work (an obvious change in location), but by evening I'm back at home (back in the very same bed where I started the day). Is this translational motion? Well, it depends. If the problem at hand is to determine how far I travel in a day, then there are two possible answers: either I've gone to work and back (thirteen miles each way for a total of 26 miles) or I've gone nowhere (thirteen miles each way for a total of zero miles). The first answer invokes translational motion while the second invokes oscillatory motion

7. 2. Oscillatory motion is repetitive and fluctuates between two locations. In the previous example of going from home to work to home to work I am moving, but in the end I haven't gone anywhere. This second type of motion is seen in pendulums (like those found in grandfather clocks), vibrating strings (a guitar string moves but goes nowhere), and drawers (open, close, open, close -- all that motion and nothing to show for it). Oscillatory motion is interesting in that it often takes a fixed amount of time for an oscillation to occur. This kind of motion is said to be periodic and the time for one complete oscillation (or one cycle) is called a period. Periodic motion is important in the study of sound, light, and other waves. Large chunks of physics are devoted to this kind repetitive motion. Doing the same thing over and over and going nowhere is pretty important; which brings us to our next type of motion

8. 3 3. Rotational motion occurs when an object spins. The earth is in a constant state of motion, but where does that motion take it? Every twenty-four hours it makes one complete rotation about its axis. (Actually, it's a bit less than that, but let's not get bogged down in details.) The sun does the same thing, but in about twenty-four days. So do all the planets, asteroids, and comets; each with its own period. (Note that rotational motion too is often periodic.) On a more mundane level, bocce balls, CDs, and wheels also rotate. That should be enough examples to keep us busy for awhile."

9. Conclusion"There are three types of motion that we will study in mechanics. These are TRANSLATION, ROTATION and VIBRATION. Translation is motion along some path from one place to another, like a car moving down a highway. Rotation is motion around some axis, like the Earth's daily motion. Vibration is a back and forth motion like the pendulum of a clock. For the purposes of this lesson we will not consider rotation, limiting ourselves to motion in a straight line. This simplification eliminates the need to use vectors to measure the quantities describing the motion. The straight-line motion is the reason we use 1 Dimension in the title of this lesson. Also by placing this restriction on the motion we will study, we only need to consider objects that are particles , meaning that their size does not enter into our consideration."

10. THANKS