Physics Rotational & Circular Motion MDCAT 2008
PMDC Verified Question 95 of 95
The force required to bend the normally straight path of a particle into a circular path is called ____ force.
A
Traveling
B
Centrifugal
C
Bending
D
Centripetal
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option D: Centripetal
Concept:

By Newton's first law, an object will move in a straight line unless acted upon by an external force. To continuously 'bend' this path into a circle, a force must constantly pull the object toward the center of rotation.

Formula:

$$ F_c = \frac{mv^2}{r} $$

Solution:

  • The center-seeking force responsible for maintaining circular motion is defined universally as centripetal force.


Why other options are incorrect:

  • Centrifugal force is an outward-directed pseudo-force observed in rotating reference frames, not the force bending the path.
  • Traveling and Bending are not standard physical forces.

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