Measurement of Length and Motion Class 6 Notes

Measurement of Length and Motion Class 6 Notes

Measurement of Length and Motion Class 6 Notes

1. Circular motion : Object moves in a circular path and the distance of object from the centre point remains the same.

2. Distance : Change in the position of an object.

3. Measurement : Comparison of an unknown quantity with some known quantity.

4. Motion : Some kind of change in the position of an object with time.

5. Periodic motion : An object repeats its motion after fixed interval of time.

6. Rectilinear motion : Motion along a straight line.

7. SI units : Standard International units.

8. Units of measurement : Known fixed quantity used for measurement.

9. Metric system : In 1790, the French created a standard unit of measurement called the metric system.

10. Reference point : When distance is stated with respect to a fixed object or point, then this point is called a reference point.

11. Oscillatory motion : When an object moves to and fro about some fixed position, its motion is called oscillatory motion.