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

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Chapter 14, Lesson 2

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

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