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Uniform Circular Motion

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Questions and Answers

What force causes the objects to move in a circular path instead of a straight line?

Centripetal force (correct)

Frictional force

Gravitational force

Centrifugal force

Is the motion of the Earth around the Sun considered uniform circular motion?

No, the motion is non-uniform and circular

Yes, the motion is uniform and elliptical

Yes, the motion is uniform and circular

No, the motion is non-uniform and elliptical (correct)

What is the time of revolution of the wooden block on the rotating disc?

The time of revolution decreases with each revolution

The time of revolution increases with each revolution

The time of revolution is not constant

The time of revolution is constant (correct)

What is the shape of the path of the wooden block on the rotating disc?

Circle Signup and view all the answers

What is the speed of the wooden block on the rotating disc?

The speed is constant Signup and view all the answers

What is the main concept that Newton used to explain the motion of the Moon?

Uniform circular motion Signup and view all the answers

What is the defining characteristic of uniform circular motion?

The body moves with a constant speed in a circular path Signup and view all the answers

Does the velocity of a body in uniform circular motion change?

Yes, the velocity changes in direction but not in magnitude Signup and view all the answers

What is the direction of the acceleration of a body in uniform circular motion?

Perpendicular to the velocity vector Signup and view all the answers

What is the formula for the magnitude of the acceleration of a body in uniform circular motion?

$a = v^2 / R$ Signup and view all the answers

How can the change in velocity of a body in uniform circular motion be represented?

Both a and b Signup and view all the answers

What is the relationship between the time period $T$ and the radius $R$ of the circular path in uniform circular motion?

$T = 2 ext{\pi} R / v$ Signup and view all the answers