In uniform circular motion, the factor that remains constant is:
Correct answer: D. Speed
- A. Linear velocity
- B. Centripetal force
- C. Acceleration
- D. Speed
Explanation
The correct answer is option D: Speed. In uniform circular motion, the factor that remains constant is the object's speed, which is the magnitude of its velocity. Linear velocity, centripetal force, and acceleration are not constant in uniform circular motion as they change with direction and other factors.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Angular and Linear Quantities
Rotational motion relates angular displacement, angular velocity and angular acceleration to linear displacement, tangential velocity and tangential acceleration through the radius. Questions use radians, v equals r omega and tangential acceleration, while distinguishing tangential velocity from centripetal acceleration and angular quantities from their linear counterparts.
Practise Rotational and Circular Motion
521 free Rotational and Circular Motion MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Angular and Linear Quantities questions
Two particle of equal masses are resolving in circular paths of radius r1 and r2 respectively with the same speed. The ratio of their centripetal force is:
The curved flight of fighter planes at high speed requires a large:
The expression for centripetal force is given by:
A particle moves in a circle of radius 25cm at two revolutions per second. The radial acceleration of the particle is:
A body is rotating in a circle of radius r, keeping the period of rotation constant, but the radius is doubled(2r)then the centripetal force becomes:
A particle is acted upon by a force of constant magnitude which is always perpendicular to the velocity of the particle. The motion takes place in a plane. It follows that: