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Chapter 14, Lesson 2
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Transcript

  • 1. mass
    acceleration/force
    acceleration/mass
    balanced forces
    unbalanced forces
    momentum
    action
    reaction
    work
    simple machines
    lever
    fulcrum
    effort arm
    resistance arm
    pulley
    wheel and axle
    ramp
    inclined plane
    wedge
    screw
    Chapter 14, Lesson 2Newton’s Second and Third Laws of Motion
  • 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.
  • 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. acceleration/mass – the greater the mass, the more force necessary to get an object to accelerate
    Click on the picture!
  • 5. balanced forces – when all the forces on an object cancel 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. 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 unbalanced forces.
    Click on the picture for some information about kinds of forces.
  • 7. momentum – momentum measures how difficult it will be to stop an object
    Click on the picture for some information about momentum.
  • 8. Newton’s First Law of Motion – “An object at rest tends to stay at rest; an object in motion tends to stay in motion.”
  • 9. velocity – the speed of a moving object taken together with its direction of travel
  • 10. acceleration – a change in velocity
  • 11. acceleration – a change in velocity
  • 12. deceleration – when a force causes the speed of an object to decrease
  • 13. incline – a ramp/slope
  • 14. pendulum – something hanging from a fixed point that swings due to gravity and then out due to inertia
    Click on the picture below to check out a link on pendulums
  • 15. gravity – something hanging from a fixed point that swings due to gravity and then out due to inertia
    Click on the picture below to check out a link on gravity.