1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Simple true and false questions please help

  1. May 3, 2010 #1
    1. The problem statement, all variables and given/known data

    true or false


    If there is no work there is no kinetic energy.

    There has to be a change in velocity for there to be a change in kinetic energy.

    when workiong with gravity, the difference in heights is important, the position above the earth is not.

    the sum of the kinetic energy and total energy is the total work.


    2. Relevant equations



    3. The attempt at a solution

    1.) false
    2.)true
    3.)false

    not sure on these please help
     
  2. jcsd
  3. May 3, 2010 #2

    rock.freak667

    User Avatar
    Homework Helper

    You have 4 statements and 3 answers. For the gravity one, why do you think the position above the Earth is relevant?
     
  4. May 4, 2010 #3
    kinetic energy formula has another variable than the velocity and the problem does not set it as constant so....
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Simple true and false questions please help
  1. True or False(Help) (Replies: 2)

Loading...