Nonuniform Circular Motion - Ball in a Vertical Circle

Nonuniform Circular Motion - Ball in a Vertical Circle

Assessment

Interactive Video

Physics, Science

11th Grade - University

Hard

Created by

Quizizz Content

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The video tutorial explains the concepts of uniform and non-uniform circular motion. It discusses the forces acting on an object in circular motion, such as gravity and tension, and how these forces are broken into radial and tangential components. The tutorial also covers tangential and centripetal acceleration, providing proof of non-uniform circular motion through time measurements and energy conservation. The video concludes with observations on the motion's imperfections and reassures that the physics principles still apply.

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the angular acceleration of an object in uniform circular motion?

It is constant.

It is zero.

It varies with time.

It depends on the radius.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which force always acts inward toward the center of the circle in vertical circular motion?

Tension force

Gravitational force

Centrifugal force

Frictional force

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why does the force of tension vary as the ball moves in a vertical circle?

Because the mass of the ball changes.

Because the speed of the ball is constant.

Because the direction of gravity changes relative to the circle.

Because the radius of the circle changes.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In which direction do we break forces into components for circular motion analysis?

Radial and tangential directions

Horizontal and vertical directions

Parallel and perpendicular directions

X and Y directions

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the radial component of the force of gravity as the ball moves from the top to the bottom of the circle?

It decreases and then increases.

It remains constant.

It becomes zero.

It increases and then decreases.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the relationship between tangential acceleration and tangential speed?

Tangential acceleration is always zero.

Tangential acceleration affects the change in tangential speed.

Tangential acceleration is proportional to tangential speed.

Tangential acceleration is inversely proportional to tangential speed.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does centripetal acceleration change as the ball moves from the top to the bottom of the circle?

It remains constant.

It decreases.

It becomes zero.

It increases.

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