MDCAT Physics — Rotational and Circular Motion
Rotational and Circular Motion is a core Physics topic in the PMDC MDCAT syllabus, covering 9 subtopics. Below are the subtopics to revise, how often the topic appears in past papers, and real past-paper MCQs to try.
Subtopics (9)
- Angular Displacement
- Angular Quantities
- Angular Velocity
- Centripetal
- Circular Motion
- Circular Motion & Gravitation
- Moment of Inertia
- Relation Between Angular and Linear Quantities
- Simple Harmonic Motion (SHM)
How Rotational and Circular Motion is tested
Across the 16 MDCAT past papers on ParhaiKrlo, Rotational and Circular Motion accounts for 46 questions. It appears in all 16, about 2.9 questions a paper. The heaviest was MDCAT 2008, with 6 questions, and the most recent is MDCAT 2025, with 2.
| Paper | Questions |
|---|---|
| MDCAT 2025 | 2 |
| MDCAT 2024 | 3 |
| MDCAT 2023 | 4 |
| MDCAT 2022 | 5 |
| MDCAT 2019 | 1 |
| MDCAT 2018 | 3 |
| MDCAT 2017 | 3 |
| MDCAT 2016 | 2 |
| MDCAT 2015 | 1 |
| MDCAT 2014 | 2 |
| MDCAT 2013 | 1 |
| MDCAT 2012 | 1 |
| MDCAT 2011 | 4 |
| MDCAT 2010 | 4 |
| MDCAT 2009 | 4 |
| MDCAT 2008 | 6 |
Rotational and Circular Motion MCQs from the MDCAT past papers
Try each one before opening the answer. Each comes with a short explanation.
- Q1 · MDCAT 2025 · Rotational and Circular Motion
An angular displacement of 90° is equal to:
- A.One-fourth revolution
- B.One-third revolution
- C.One-half revolution
- D.One complete revolution
Show answer
Answer: A. One-fourth revolution — 90° equals one-fourth of a full revolution.
- Q2 · MDCAT 2024 · Rotational and Circular Motion
The centripetal acceleration of an object moving along a circle of radius 'r' with an angular speed 'ω' is given by the formula:
- A.a = rω²
- B.a = rω
- C.a = r²ω
- D.A = r²ω²
Show answer
Answer: A. a = rω² — Centripetal acceleration is given by a = rω².
- Q3 · MDCAT 2023 · Rotational and Circular Motion
One radian is analogous to:
- A.57°3'
- B.57°3"
- C.57°18'
- D.57°18"
Show answer
Answer: C. 57°18' — One radian, converted to degrees-minutes-seconds notation, is approximately 57 degrees 18 minutes.