mass              acceleration/forceChapter 14,              acceleration/mass               balanced forces              ...
mass – A measure of the amount of matter inan object. The mass of an object is related to     the force required to accele...
acceleration/force – the more force    you apply, the greater the           acceleration        Click on the picture for s...
acceleration/mass – the greater the mass, the more force necessary to    get an object to accelerate             Click on ...
balanced forces – when all the forces on an objectcancel each other out, you have balanced forces – no            accelera...
unbalanced forces – when forces don’t cancel each   other out, there is movement. This is a result of                  unb...
momentum – momentum measures how  difficult it will be to stop an object     Click on the picture for some information abo...
action – when one object applies a force to             another object
reaction – the force the second thing returns (the result of an            action)
work – using force to move an  object through a distance
simple machines – devices with few   moving parts that make work           easier to do.        Click on the picture for s...
lever – a rigid (solid, hard) bar       that rests on a pivot point                                                 Click ...
fulcrum – a pivot point that a lever       rests on. The (triangle in the             diagrams below.)Click on the picture...
effort arm – the part of the lever       that you apply force to (input                   force).Click on the picture for ...
resistance arm – the part of the        lever that lifts the load (output                      force.)Click on the picture...
inclined plane – a ramp/slopeClick on the picture below watch a video incline planes.
pulley – a wheel with a grove in   the rim. A rope fits in the groove and helps lift the load.Click on the picture below w...
wheel and axle – a wheel is a large diameter circle attached to a small diameter axle. A small amount of input force on th...
screw – an inclined plane wrapped  in a spiral around a cylinder or                cone.            Click on the picture t...
screw – an inclined plane wrapped  in a spiral around a cylinder or                cone.            Click on the picture t...
wedge – an inclined plane wrapped  in a spiral around a cylinder or                cone.          Click on the picture to ...
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Chapter 14, Lesson 2- Newton's Second Law

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Chapter 14, Lesson 2- Newton's Second Law

  1. 1. mass acceleration/forceChapter 14, acceleration/mass balanced forces unbalanced forces Lesson 2 momentum action Newton’s reaction workSecond and simple machines leverThird Laws fulcrum effort arm of Motion resistance arm pulley wheel and axle inclined plane wedge screw
  2. 2. mass – A measure of the amount of matter inan object. The mass of an object is related to the force required to accelerate it.
  3. 3. acceleration/force – the more force you apply, the greater the acceleration Click on the picture for some great questions about acceleration and force!
  4. 4. acceleration/mass – the greater the mass, the more force necessary to get an object to accelerate Click on the picture!
  5. 5. balanced forces – when all the forces on an objectcancel each other out, you have balanced forces – no acceleration, no momentum Click on the picture for some great questions about balanced and unbalanced forces.
  6. 6. unbalanced forces – when forces don’t cancel each other out, there is movement. This is a result of unbalanced forces.Click on the picture for some information about Click on the picture for some unbalanced forces. information about kinds of forces.
  7. 7. momentum – momentum measures how difficult it will be to stop an object Click on the picture for some information about momentum.
  8. 8. action – when one object applies a force to another object
  9. 9. reaction – the force the second thing returns (the result of an action)
  10. 10. work – using force to move an object through a distance
  11. 11. simple machines – devices with few moving parts that make work easier to do. Click on the picture for some information about simple machines.
  12. 12. lever – a rigid (solid, hard) bar that rests on a pivot point Click on the picture for a video on levers.Click on the picture for directions on how to build a lever. Click on the picture for some contraption videos using simple machines. Built by kids!
  13. 13. fulcrum – a pivot point that a lever rests on. The (triangle in the diagrams below.)Click on the picture for directions on how to build a lever. Click on the picture for some contraption videos using simple machines. Built by kids!
  14. 14. effort arm – the part of the lever that you apply force to (input force).Click on the picture for directions on how to build a lever. Click on the picture for some contraption videos using simple machines. Built by kids!
  15. 15. resistance arm – the part of the lever that lifts the load (output force.)Click on the picture for directions on how to build a lever. Click on the picture for some contraption videos using simple machines. Built by kids!
  16. 16. inclined plane – a ramp/slopeClick on the picture below watch a video incline planes.
  17. 17. pulley – a wheel with a grove in the rim. A rope fits in the groove and helps lift the load.Click on the picture below watch a video on pulleys.
  18. 18. wheel and axle – a wheel is a large diameter circle attached to a small diameter axle. A small amount of input force on the wheel creates alarge amount of output on the axle. Click on the picture to check out a video on screws and wheels.
  19. 19. screw – an inclined plane wrapped in a spiral around a cylinder or cone. Click on the picture to check out a video on screws and wheels.
  20. 20. screw – an inclined plane wrapped in a spiral around a cylinder or cone. Click on the picture to check out a video on screws and wheels.
  21. 21. wedge – an inclined plane wrapped in a spiral around a cylinder or cone. Click on the picture to check out a Bill Nye Videos on simple machines.
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