Lesson: Chapter - 10

Practice Questions

1. The instantaneous velocity of a point on the outer edge of a disk with a diameter of 4 m that is rotating at 120 revolutions per minute is most nearly:
(A) 4 m/s
(B) 6 m/s
(C) 12 m/s
(D) 25 m/s
(E) 50 m/s
div>
2. A washing machine, starting from rest, accelerates within 3.14 s to a point where it is revolving at a frequency of 2.00 Hz. Its angular acceleration is most nearly:
(A) 0.100 rad/s2
(B) 0.637 rad/s2
(C) 2.00 rad/s2
(D) 4.00 rad/s2
(E) 6.28 rad/s2
3. What is the direction of the angular velocity vector for the second hand of a clock going from 0 to 30 seconds?
(A) Outward from the clock face
(B) Inward toward the clock face
(C) Upward
(D) Downward
(E) To the right
4. Which of the following are means of maximizing the torque of a force applied to a rotating object?
  I. Maximize the magnitude of the applied force  II. Apply the force as close as possible to the axis of rotation III. Apply the force perpendicular to the displacement vector between the axis of rotation and the point of applied force
(A) I only
(B) II only
(C) I and II only
(D) I and III only
(E) I, II, and III
5. What is the torque on the pivot of a pendulum of length R and mass m, when the mass is at an angle ??
(A)
(B)
(C) mgR sin?
(D) mgR cos?
(E) mgR tan?
6. Two objects rest on a seesaw. The first object has a mass of 3 kg and rests 10 m from the pivot. The other rests 1 m from the pivot. What is the mass of the second object if the seesaw is in equilibrium?
(A) 0.3 kg
(B) 3 kg
(C) 10 kg
(D) 30 kg
(E) 50 kg
7. What is the angular acceleration of a 0.1 kg record with a radius of 0.1 m to which a torque of 0.05 N · m is applied? The moment of inertia of a disk spinning about its center is 1/2MR2.
(A) 0.1 rad/s2
(B) 0.5 rad/s2
(C) 1 rad/s2
(D) 5 rad/s2
(E) 10 rad/s2
8. A disk of mass m and radius R rolls down an inclined plane of height h without slipping. What is the velocity of the disk at the bottom of the incline? The moment of inertia for a disk is 1 /2 mR2.
(A)
(B)
(C)
(D)
(E)
9. A catapult with a basket of mass 50 kg launches a 200 kg rock by swinging around from a horizontal to a vertical position with an angular velocity of 2.0 rad/s. Assuming the rest of the catapult is massless and the catapult arm is 10 m long, what is the velocity of the rock as it leaves the catapult?
(A) 10 m/s
(B) 20 m/s
(C) 25 m/s
(D) 50 m/s
(E) 100 m/s
10. How should the mass of a rotating body of radius r be distributed so as to maximize its angular velocity?
(A) The mass should be concentrated at the outer edge of the body
(B) The mass should be evenly distributed throughout the body
(C) The mass should be concentrated at the axis of rotation
(D) The mass should be concentrated at a point midway between the axis of rotation and the outer edge of the body
(E) Mass distribution has no impact on angular velocity
Back Next

Next to display next topic in the chapter.

Practice Questions

Video Lessons and 10 Fully Explained Grand Tests

Large number of solved practice MCQ with explanations. Video Lessons and 10 Fully explained Grand/Full Tests.

SAT Reasoning GRE General GMAT Test
More for You
MCQ with question Explanations Scholarships and Financial Aid

Text Completion

Beat the verbal section Text Completion of the test - GRE

GRE General Preparation

Prepare GRE General paper-base and online

Chemistry for Test Preparation

Lessons with Practice questions -MCQs for Chemistry for Test preparation

All in this Category

You may be interested in

Colleges in Quetta

Find a comprehensive list of major ...

Colleges in cities of Punjab

Comprehensive lists of colleges in ...

MS in USA for International Student

Calculate your chances to have MS D ...

Developing Self-Confidence

How you can Developing Self-Confide ...

GRE Physics

Find what is GRE Physics and how to ...

Pakistan Army Short Service Regular Commission

Join Pakistan Army through Short Se ...

Universities in Gujranwala

Universities in Gujranwala - Punjab ...

Universities in Bannu

A list of universities in Bannu ...

About us

EntryTest.com is a test preparation service for students seeking successful career.

About Disclaimer

Quick Test Prep

NUST NET IBA Karachi SAT LUMS LCAT LSE

 

NTS GAT NTS NAT GMAT GRE ACT

Study Abroad

Education Abroad Business Schools MS in USA