Words and Formulas of This Topic
- Motion: the state in which an object changes its position with respect to the objects around it.
- Rest: the state in which an object does not change its position with respect to the objects around it.
- Uniform motion: motion in which equal distances are covered in equal intervals of time.
- Non-uniform motion: motion in which equal distances are not covered in equal intervals of time.
- Speed: the distance covered in unit time. Its unit is metres per second (m/s).
- Velocity: the distance covered in a definite direction in unit time. Its unit is metres per second (m/s).
- Magnitude: the numerical value of a quantity.
- Direction: the way in which something points or moves.
- Scalar quantity: a quantity that has magnitude only and no direction.
- Vector quantity: a quantity that has both magnitude and direction.
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