CH. 12  LESSON 2 HOW DOES FORCE AFFECT MOTION?
Activity-Roll On Hypothesis :  I predict that the truck will go further  with or without  rocks. Without rocks With rocks ...
force <ul><li>any push or pull </li></ul><ul><li>can change an object’s position or direction of motion </li></ul>
force <ul><li>push    </li></ul><ul><li>pull  </li></ul>push pull
 
The greater the force on an object, the greater will be its change in its motion.
friction <ul><li>contact force that goes against the motion of an object </li></ul>
Equal forces in opposite directions do  not  cause a change in motion. Tug of war
gravity <ul><li>non-contact force that  pulls  objects toward each other </li></ul><ul><li>the greater the mass   the gre...
weight <ul><li>amount of gravity that  pulls  on an object </li></ul>
magnetism <ul><li>non-contact force that  pulls  on metals with iron in them </li></ul>
Let's Review
FORCE <ul><li>any push or pull </li></ul>
energy <ul><li>It takes  ________  to apply or exert a force. </li></ul>
<ul><li>A force can cause a _________ in an object’s position or motion. </li></ul>change
GRAVITY <ul><li>force that  pulls  objects toward each other </li></ul>
FRICTION <ul><li>contact force that goes against the motion of an object </li></ul>
mass <ul><li>the greater the _______   the greater the force of gravity </li></ul>
IRON <ul><li>Magnetism is a non-contact force that  pulls  on metals with ___________ in them. </li></ul>
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3rd Grade-Ch. 12 Lesson 2 How does force affect motion

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3rd Grade-Ch. 12 Lesson 2 How does force affect motion

  1. 1. CH. 12 LESSON 2 HOW DOES FORCE AFFECT MOTION?
  2. 2. Activity-Roll On Hypothesis : I predict that the truck will go further with or without rocks. Without rocks With rocks Distance (cm) truck
  3. 3. force <ul><li>any push or pull </li></ul><ul><li>can change an object’s position or direction of motion </li></ul>
  4. 4. force <ul><li>push  </li></ul><ul><li>pull  </li></ul>push pull
  5. 6. The greater the force on an object, the greater will be its change in its motion.
  6. 7. friction <ul><li>contact force that goes against the motion of an object </li></ul>
  7. 8. Equal forces in opposite directions do not cause a change in motion. Tug of war
  8. 9. gravity <ul><li>non-contact force that pulls objects toward each other </li></ul><ul><li>the greater the mass  the greater the force of gravity </li></ul>
  9. 10. weight <ul><li>amount of gravity that pulls on an object </li></ul>
  10. 11. magnetism <ul><li>non-contact force that pulls on metals with iron in them </li></ul>
  11. 12. Let's Review
  12. 13. FORCE <ul><li>any push or pull </li></ul>
  13. 14. energy <ul><li>It takes ________ to apply or exert a force. </li></ul>
  14. 15. <ul><li>A force can cause a _________ in an object’s position or motion. </li></ul>change
  15. 16. GRAVITY <ul><li>force that pulls objects toward each other </li></ul>
  16. 17. FRICTION <ul><li>contact force that goes against the motion of an object </li></ul>
  17. 18. mass <ul><li>the greater the _______  the greater the force of gravity </li></ul>
  18. 19. IRON <ul><li>Magnetism is a non-contact force that pulls on metals with ___________ in them. </li></ul>
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