Wednesday, October 8, 2008

Where do you find....

Kinetic and Potential energy in each of the following.....

a) an athlete leaving the ground for a high jump

b) a pop fly on its way back down

c) an engine as the driver puts the hammer down

d) a cheerleader cartwheeling across the gym floor

21 comments:

  1. a) knee
    b)ball
    c) idk
    d) elbow and knees

    ReplyDelete
  2. i think kinetic energy is not stored energy energy thats out in the open?....idk?? i think potental energy is stored energy??

    yes
    yes
    yes
    yes

    ReplyDelete
  3. Kinetic: A, B, D

    Potential: All four.

    ReplyDelete
  4. a) knee
    b) ball
    c) idk
    d) elbow and knees

    ReplyDelete
  5. a= potential is leaving and kinetic is going up

    b= the kinetic energy is lowering and so is the potential

    c= the kinetic goes way up the potential is transfering into kinetic.

    d= the kinetic energy is fairly high the potential is lowering

    ReplyDelete
  6. A)potential in the knees and kinetic wen he leaves the ground.
    B)potential wen it hits the ground and kinetic wen it got hit and is flying.
    C)potential in the accelerator before he hits the gas kinetic wen he hits the gas.
    D)potential in her arms kinetic wen she lands after the cartwheel.

    ReplyDelete
  7. Potential: athlete feet on the ground, pop fly when it stops,hammer stopping, and cheerleader stoping.

    Kinetic:doing the high jump, when the pop fly is falling, the hammer being put down, and cheerleader doing the cartwheel.

    ReplyDelete
  8. In his lags before he jumps
    When he lands
    In his arm being ready to strike the hammer on the engine
    Threw her hole body as she is spinning or at least in her arms and legs

    ReplyDelete
  9. a)potential-before they leave the ground. kinetic-when they jump.

    b)potential-before its hit. kinetic-when the ball is in the air.

    c)potential-before you press the gas. kinetic-after he pressed the gas.

    d)potential-before she starts her first cartwheel. kinetic- when shes doing them.

    ReplyDelete
  10. a)before they leave the ground is potential and when they leave the ground is kintetic
    b)potential:when ball is hit
    kinetic:when the ball is in the air
    c)potential:before he presses the gas
    kinetic: when the gas pedal is pressed
    d)potential:before the girl starts to bend
    kinetic: when shes wheeling across the room.

    ReplyDelete
  11. a)k-when you first push off the ground

    p-knees

    b)k-when its thrown
    p-none

    c)k-idk
    p-idk

    d)k-running before the kartwheel
    p-arms and legs

    ReplyDelete
  12. A) potential is in his knees and kinetic is when he is in the ground.

    B) when you pull back to throw the ball and when its in the air.

    c) when the engine starts and when the driver puts the hammer down.

    d) when the cheerleader starts to run and when the cheerleader starts the cartwheel.

    ReplyDelete
  13. kinetic is wen the junper is just leveing the ground and the potential energ is wen hes in mid air
    wen the pop leaves the hand and wen its in mid air.

    ReplyDelete
  14. 1 potential in knees/kinetic releasing the knees
    2ball
    3 the bets
    4hand knees

    ReplyDelete
  15. A)when you are soaring over (K)
    (P)abnout ready to push off
    (B)(K)when its thrown (p)on the way back down it doesnt have any
    (C)idk
    (d) running before she does the cartwheel (K)
    p-????arms and legs (force>>>)

    ReplyDelete
  16. a.in his legs
    b. there is no kinetic but there is gravity
    c.in the motor and gravity
    d.in arms and legs and gravity

    ReplyDelete
  17. A)K-when you are falling after going over the bar
    P-storing it when you are about ready to jump
    B)K-When you are throwing it and when it its coming back down
    P-it has no potential energy on the way back down
    C)ummm idk
    D)K- when she is going around for the second time cause your using your momentum to get over
    P-ummm....idk

    ReplyDelete
  18. a) kinetic- legs pushing off ground
    potential- in legs
    b)kinetic- ball hitting ground
    potential- ball in air falling
    c) kinetic- car speeding up
    potential- pistons moving in engine
    d) kinetic- pushing away from floor
    potential- Hands and legs

    ReplyDelete
  19. A. In his legs and In his legs.
    B. No Kinetic energy but there is potential energy when the ball is going into the glove (Gravity).
    C. The engine and there is gravity.
    D. The Cheerleader and the gravity pushing her down while she does her cartwheels.

    ReplyDelete