Basic Definitions (conceptual)
Which pair correctly matches rotational and linear quantities?
Select the correct option:
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About This Question
- Subject
- physics
- Chapter
- rotational motion
- Topic
- basic definitions (conceptual)
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
Angular displacement ↔ Linear displacement
- Definition: Rotational motion can be described using variables that are analogues of linear motion parameters.
- Mapping Table:
- Linear Displacement (s or x) ↔ Angular Displacement (θ)
- Linear Velocity (v) ↔ Angular Velocity (ω)
- Linear Acceleration (a) ↔ Angular Acceleration (α)
- Mass (m or Inertia) ↔ Moment of Inertia (I)
- Force (F) ↔ Torque (τ)
- Linear Momentum (p) ↔ Angular Momentum (L)
- Analysis: Option 2 is the only correct functional match. Torque corresponds to Force, not momentum. Angular velocity corresponds to velocity, not acceleration.
This easy difficulty physics question is from the chapter rotational motion, covering the topic of basic definitions (conceptual). It appeared in the 2025 exam.
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