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# Rest and Motion

## Summary

LearnNext Lesson Video

HD 9:34

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## Activities & Simulations

Activity 1

phet.colorado has created an excellent java applet to describe the motion with respect to the position, displacement and acceleration. Using this we can recor the motion and also can replay the recorded motion.

Go to Activity

Activity 2

walter-fendt.de has created the Java applet that shows a car moving with constant acceleration. Using this Java applet we can vary the values of initial position, initital velocity and acceleration. We choose the option "Slow motion".

Three diagrams illustrate the motion of the vehicle

Position x versus time t

Velocity v versus time t

Acceleration a versus time t

Go to Activity


## Questions & Answers

Motion is the action of moving or just a displacement.
You are sitting in a flying aeroplane and looking out of its window. Are you in a state of rest or in a state of motion? Explain...
Examples of periodic motion:
1. The motion of the bob of the simple pendulum
2. Motion of a planet around the sun
3...

Answer:  As fan is rotating it is called rotatory motion with respect to a reference point on the earth and...

Answer:  The suspension bridge Balances though it is not having pillars  because  suspension bridges have beams sup...