Motion Concise Notes
- Motion
- change in position
- with time
- with respect ot a reference point (origin)
- reference point may be stationary or in motion (Observer)
- Explain
- if earth is in motion
- why the trees, poles etc. move backwards when observed from a moving bus.
- Motion between two positions
- Distance – Actual path
- Displacement – shortest distance with direction
- Linear motion involving multiple directions
- Real life numerical
- Translational Motion: along a straight or curved path
- Rectilinear Motion – straight line path
- Curvilinear Motion – curved path
- Rotational Motion: spins or rotates around a fixed axis
- Circular Motion: along a circular path
- Periodic Motion: repeats at regular intervals
- Oscillatory Motion: Repetitive back-and-forth motion around a central point, vibration
- Random Motion: Unpredictable, erratic movement with no fixed pattern
- Combination of one or more types of motion
- Uniform motion
- Equal distance
- in equal interval of time
- even for short time interval
- Non-uniform motion
- Inequal distance
- in equal interval of time
- Speed
- How fast movement
- Average speed
- \(\frac{\text{Total Distance}}{\text{Total time taken}}\)
