1. Acceleration directed toward the center of a circular path
    Centripetal Acceleration
  2. The motion of a body when only the fource of gravity is acting on it
  3. Motion of an object revolving about a single axis
    Circular motion
  4. the speed of an object in circular motion
    Tangential speed
  5. T^2=r^3
    Kepler's 3rd Law
  6. Motion of an object when tangential speed is constant
    Uniform Circular Motion
  7. Force that causes centripetal acceleration
    Centripetal Force
  8. The mutual force of attraction between particles of matter
    Gravitational Force
  9. The speed needed to "break free" from a gravitational field.
    Escape Velocity
  10. An object whose escape velocity is greater than the speed of light
    Black Hole
  11. Each planet travels in an elliptical orbit around the sun, and the sun is at one of the focal points.
    Keplers 1st law
  12. The line about which circular motion occurs.
    Axis of rotation
  13. The time it takes to complete one cycle of revolution or wave oscillation
  14. The product of the force and the lever arm
  15. One of six types of machines designed to make work easier
    Simple Machine
  16. Perpendicular distance from the axis of rotation to a line drawn along the direction of force
    Lever Arm
  17. an imaginary line drawn from the sun to any planet sweeps out equal areas in equal time periods
    Kepler's 2nd law
  18. An object that revolves around a central body.
  19. A device that changes the force needed to do work
Card Set
Physics Vocab