1 / 9

Warm Up March 12, 2013

Warm Up March 12, 2013. Do you think there is any truth to the statement: “When Chuck Norris does push ups, he doesn’t push himself up, he pushes the earth down.” Explain. vs. Agenda. Warm Up Review HW 10.3 10.4 Notes

claus
Download Presentation

Warm Up March 12, 2013

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Warm Up March 12, 2013 • Do you think there is any truth to the statement: “When Chuck Norris does push ups, he doesn’t push himself up, he pushes the earth down.” Explain. vs.

  2. Agenda • Warm Up • Review HW 10.3 • 10.4 Notes • Newton’s 3rd Law Investigation Lab • Cool Down

  3. 10.4 Newton’s 3rd Law • Newton’s 3rd Law of Motion: if one object exerts a force on another object, then the second objects exerts a force equal in strength in the opposite direction on the first object. Or… • “For every action, there is an equal but opposite reaction”

  4. Action-Reaction Pairs

  5. Why don’t action/reaction forces cancel? • Remember that balanced forces do not cause a change in velocity. • But on the last slide, we saw a lot of velocity changes. What’s up?! • Action-reaction forces do not act on the same object; they act on different objects!

  6. Momentum • Momentum is a characteristic of an object in motion. • Momentum = mass x velocity • So, objects with greater mass have more momentum than less massive objects moving at the same velocity. • And if two objects have the same mass, the one with the greater velocity has the greater momentum.

  7. Law of Conservation of Momentum • Momentum, unlike force, is conserved. • Momentum can be transferred from one object to another, but cannot be increased or decreased without an outside force.

  8. Cool Down • None. • p. 399 #1-5 all • 10.4 Vocabulary Booklet (2 words on p. 393) Homework

More Related