Force and Motion (Mechanics) - Introductory

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Full list of words from this list:

words only definitions & notes
  1. acceleration
    (physics) a rate of increase of velocity
  2. action
    something done (usually as opposed to something said)
  3. axle
    a shaft on which a wheel rotates
  4. collide
    crash together with violent impact
  5. collision
    a brief event in which two or more particles come together
  6. compression
    the process of becoming smaller or pressed together
  7. conservation
    maintenance of constant physical or chemical quantities
  8. conservation of momentum
    the principle that the total linear momentum in a closed system is constant and is not affected by processes occurring inside the system
  9. deceleration
    a decrease in rate of change
  10. direction
    relation between something and the course on which it moves
  11. distance
    the size of the gap between two places
  12. drag
    pull, as against a resistance
  13. elasticity
    the tendency of a body to return to its original shape
  14. energy
    the capacity of a physical system to do work
  15. equilibrium
    a stable situation in which forces cancel one another
  16. force
    influence that results in motion, stress, etc. when applied
  17. free fall
    the ideal motion of something subject only to gravity
  18. friction
    the resistance when a body is moved in contact with another
  19. fulcrum
    the pivot about which a lever turns
  20. gear
    a toothed wheel that engages another toothed mechanism
  21. gravitational force
    the force of attraction between all masses in the universe
  22. gravity
    the force of attraction between all masses in the universe
  23. impact
    the striking of one body against another
  24. inclined plane
    a simple machine for elevating objects
  25. inertia
    the tendency of something to stay in rest or motion
  26. kinetic energy
    the mechanical energy that a body has by virtue of motion
  27. lever
    a simple machine giving a mechanical advantage on a fulcrum
  28. lift
    the component of the aerodynamic forces acting on an airfoil that opposes gravity
  29. load
    weight to be borne or conveyed
  30. machine
    a mechanical or electrical device that transmits energy
  31. magnitude
    the property of relative size or extent
  32. mass
    the property of a body that causes it to have weight
  33. mechanical energy
    energy in a mechanical form
  34. model
    a hypothetical description of a complex entity or process
  35. momentum
    the product of a body's mass and its velocity
  36. motion
    the act of changing location from one place to another
  37. Newton's first law
    a body remains at rest or in motion with a constant velocity unless acted upon by an external force
  38. Newton's second law
    the rate of change of momentum is proportional to the imposed force and goes in the direction of the force
  39. Newton's third law
    action and reaction are equal and opposite
  40. pendulum
    an apparatus in which an object is mounted to swing freely
  41. pivot
    axis consisting of a shaft supporting something that turns
  42. potential energy
    energy stored by a body or system by virtue of its position
  43. power
    (physics) the rate of doing work
  44. projectile
    impelling or impelled forward
  45. pulley
    a wheel with a groove in which a rope can run
  46. reaction
    the opposite force when a force is applied to a body
  47. resistance
    any mechanical force that tends to slow or oppose motion
  48. screw
    a simple machine with a threaded cylindrical rod and hole
  49. simple machine
    a device for overcoming resistance at one point by applying force at some other point
  50. slope
    the property of a line that departs from the horizontal
  51. speed
    a rate at which something happens
  52. strain
    deformation of a body under the action of applied forces
  53. stress
    (physics) force that produces strain on a physical body
  54. tension
    a stress that produces an elongation of a physical body
  55. thrust
    the act of applying force to propel something
  56. time
    the fourth coordinate required to specify a physical event
  57. velocity
    distance traveled per unit time in one direction
  58. wedge
    something solid that can be pushed between two things
  59. weight
    the vertical force exerted by a mass as a result of gravity
  60. wheel
    a simple machine consisting of a circular frame with spokes (or a solid disc) that can rotate on a shaft or axle (as in vehicles or other machines)
  61. wheel and axle
    hoist so arranged that a rope unwinding from a wheel is wound onto a cylindrical drum or shaft coaxial with the wheel
  62. work
    a manifestation of energy
Created on Tue Feb 21 20:37:27 EST 2017 (updated Wed Apr 19 09:22:53 EDT 2017)

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