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Motion in One Dimension — PHYSICS STD 9 — Question

ICSE BoardEnglish MediumSTD 9PHYSICSMotion in One Dimension2 Marks
Question
(a) Distinguish between scalar and vector quantities,
(b) State whether following are scalar or vector quantities
1. speed
2. force
3. acceleration
4. energy
✓

Answer

(a) self
(b)
1. Speed is a scalar quantity because it has magnitude and no direction.
2. Force is a vector quantity because it has both magnitude as well as direction.
3. Acceleration is a vector quantity.
4. Energy is a scalar quantity because it has magnitude and no direction.

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