{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

ENRICHED WORK POWER ENERGY TEST A (3)

ENRICHED WORK POWER ENERGY TEST A (3) - NAME SPH3U3/6 WORK...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
NAME________________________________ SPH3U3/6 WORK, POWER & ENERGY TEST A MULTIPLE CHOICE : Place your answer on the LEGAL SIZE paper. 1) ( 1K ) An object with mass m and speed v 0 directed to the right strikes a wall and rebounds with speed v 0 directed to the left. The change in the object’s kinetic energy is A) - m v 0 2 B) - 1 2 0 2 m v C) 1 2 0 2 m v D) m v 0 2 E) 0 2) ( 1K ) Each of the four identical carts shown below is loaded with a total mass of four kilograms. All of the carts are initially at rest on the same level surface. Forces of the same magnitude directed to the right act on each of the carts for the same length of time. If friction and air resistance are negligible, which cart will have the greatest velocity when the applied force stops? A) All four carts will have the same velocity. B) Cart 1 C) Cart 2 D) Cart 3 E) Cart 4 3) ( 1K ) Alice and Bill are standing at the top of a cliff of height H . Both throw a ball with initial speed v 0 . Alice throws her ball straight down while Bill throws his ball straight up. The speeds of the balls when they hit the ground are v A and v B respectively and the times that the balls hit the grounds are t A and t B respectively. Which of the following mathematical statements is CORRECT ? A) v v A B < B) v v A B = C) v v A B D) t t A B = E) t t A B
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern