Science test 1

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Author:
kingkong
ID:
38746
Filename:
Science test 1
Updated:
2010-09-30 15:50:25
Tags:
sci
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Science test 1
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  1. density equation
    density = mass/volume

    • p=m/v
  2. average speed
    average speed= distance/time

    • _
    • v =d/t
  3. acceleration equation
    acceleration=change of velocity/time


    =final velocity-initial velocity/time

    a=v_final-v_initial/t
  4. average velocity
    average velocity=final velocity+initial velocity/2

    • _
    • v = final v + initial v /2
  5. distance equation
    distance=1/2(acceleration)(time)^2
  6. force equation
    force=mass x acceleration

    f=ma
  7. weight equation
    • weight=mass x acceleration due to gravity
    • w=m(g)
  8. momentum equation
    momentum=mass x velocity

    p=mv
  9. change of momentum
    change of momentum=force x time
  10. centripetal acceleration equation
    centripetal acceleration=velocity squared/radius of circle
  11. centripedal force equation
    centripetal force=(mass x velocity squared)/radius of circle

    f=mv^2/r
  12. gravitational force equation
    gravitational force=constant x (onemass x another mass)/distance squared

    f=g (m1m2)/d^2
  13. work equation
    work=force x distance

    w=fd
  14. power equation
    power=work/time

    p=w/t
  15. gravitational potential energy equation
    gravitational potential energy=weight x height

    PE=mgh
  16. kinetic energy equation
    kinetic energy=1/2(mass)(velocity)^2

    KE=1/2mv^2
  17. acceleration due to final velocity
    acceleration due to final velocity=square root of (2 x to gravity x height of fall)

    final v=sqrt 2gh

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