2,3 / 2,4 Reading Quiz - Work Done, PE Ke, Power, Circular Motion

Approved & Edited by ProProfs Editorial Team
The editorial team at ProProfs Quizzes consists of a select group of subject experts, trivia writers, and quiz masters who have authored over 10,000 quizzes taken by more than 100 million users. This team includes our in-house seasoned quiz moderators and subject matter experts. Our editorial experts, spread across the world, are rigorously trained using our comprehensive guidelines to ensure that you receive the highest quality quizzes.
Learn about Our Editorial Process
| By Gboulton
G
Gboulton
Community Contributor
Quizzes Created: 18 | Total Attempts: 9,720
Questions: 10 | Attempts: 163

SettingsSettingsSettings
2,3 / 2,4 Reading Quiz - Work Done, PE Ke, Power, Circular Motion - Quiz

2,3 / 2,4 Reading Quiz - work done, PE KE, power, circular motion


Questions and Answers
  • 1. 

    20N pushes a box 6m in 3 seconds. What is the work done by the force?

    • A.

      360J

    • B.

      120J

    • C.

      60J

    • D.

      18J

    Correct Answer
    B. 120J
  • 2. 

    What is the average power used in moving an object with 20N for a distance of 6m in 3seconds?

    • A.

      3.33W

    • B.

      2W

    • C.

      6.66W

    • D.

      40W

    Correct Answer
    D. 40W
    Explanation
    https://dl.dropboxusercontent.com/u/15735665/DIPLOMA/CH%20quiz%20images/MC%20images/2-4q2.JPG

    Rate this question:

  • 3. 

    What aspect of a force distance graph give you the work done?

    • A.

      The gradient,

    • B.

      The area

    • C.

      Half the area

    • D.

      The second derivative

    Correct Answer
    B. The area
    Explanation
    The work done is determined by the area under the force-distance graph. This is because work is defined as the product of force and displacement, and the area under the graph represents the product of force and distance. Therefore, the greater the area under the graph, the greater the work done. The gradient of the graph, on the other hand, represents the force applied, not the work done. The second derivative is not relevant to determining the work done.

    Rate this question:

  • 4. 

    2Kg mass is thrown with a velocity of 5m/s.  What is its KE?

    • A.

      5J

    • B.

      10J

    • C.

      25J

    • D.

      50J

    Correct Answer
    C. 25J
    Explanation
    https://dl.dropboxusercontent.com/u/15735665/DIPLOMA/CH%20quiz%20images/MC%20images/2-4%20q4.JPG

    Rate this question:

  • 5. 

    A 2Kg mass is given 100J of KE.  How high will it reach if it is thrown vertically upwards?

    • A.

      2.5m

    • B.

      5m

    • C.

      25m

    • D.

      50m

    Correct Answer
    B. 5m
    Explanation
    KE turns into mgh
    KE=mgh
    100 =2x10xh
    h=5m

    Rate this question:

  • 6. 

    What is an elastic collision?

    • A.

      Where mass is conserved

    • B.

      Where energy is conserved

    • C.

      Where kinetic energy is conserved

    • D.

      Where potential energy is conserved

    Correct Answer
    C. Where kinetic energy is conserved
    Explanation
    An elastic collision is a type of collision in which kinetic energy is conserved. This means that the total kinetic energy of the system before the collision is equal to the total kinetic energy after the collision. In an elastic collision, there is no loss of kinetic energy due to friction or deformation of the objects involved. Instead, the objects bounce off each other without any loss of energy, resulting in a conservation of kinetic energy.

    Rate this question:

  • 7. 

    A speed boat is able to travel with a maximum velocity of 20m/s.  The power rating of the engine is 2000W.  What is the sum of the frictional forces on the boat?

    • A.

      40,000 N

    • B.

      200 N

    • C.

      100 N

    • D.

      50 N

    Correct Answer
    C. 100 N
  • 8. 

    What is the acceleration of a 40Kg boy sitting on the edge of a merry-go-round.  The tangetial speed is 2m/s.  The diameter of the merry go round is 8m.  What is the acceleration he experiences.

    • A.

      0.5 m/s2

    • B.

      1m/s2

    • C.

      2m/s2

    • D.

      4m/s2

    Correct Answer
    B. 1m/s2
  • 9. 

    When a bucket is being swung round in a circle in a verticle plane, what are the forces acting on the bucket when it is at the lowest point?

    • A.

      Weight and centripetal force,

    • B.

      Tension and centripetal force and weight

    • C.

      Weight and tension

    • D.

      Tension and centripetal force

    Correct Answer
    C. Weight and tension
    Explanation
    Remember - centripetal force is only the result of other forces, it is NOT a force in its own right.

    Rate this question:

  • 10. 

    Which areas of this work done, KE, PE, power and circular motion do you have the most difficult with?  Can you formulate a question?

  • 11. 

    There is no video available yet, please upload the video

Quiz Review Timeline +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Nov 12, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Oct 19, 2012
    Quiz Created by
    Gboulton

Related Topics

Back to Top Back to top
Advertisement
×

Wait!
Here's an interesting quiz for you.

We have other quizzes matching your interest.