1 / 12

BIG IDEA #1

BIG IDEA #1. A force is an interaction between two objects. This can either be a push or a pull.

effie
Download Presentation

BIG IDEA #1

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. BIG IDEA #1 A force is an interaction between two objects. This can either be a push or a pull.

  2. A cart is being pulled on both sides by string. The cart was pushed to the right by hand and the pictures were taken right after the push. String 1 is pulling with the same amount of force as string 2. CV1 Constant Velocity, positive direction

  3. The cart was pushed to the left by hand and the pictures were taken right after the push. CV2 Constant Velocity, negative direction

  4. A cart is being pulled on both sides by string. The cart was initially at rest. String 2 is pulling with more force than string 1. SU Speeding Up, positive direction

  5. A cart is being pulled on both sides by string. The cart was initially pushed by a hand to the left. Right after the push the pictures were taken. String 2 is pulling with more force than string 1. SD Slowing Down, positive direction

  6. WHAT IS A SYSTEM?

  7. BIG IDEA #2 A system is a part of the Universe that we are analyzing. The surroundings are the rest of the Universe.

  8. FBDs for Motion Activity

  9. FBDs for Motion Activity

  10. FBD important note: arrow length • When you construct an FBD, each arrow(vector) represents a forceon one object by another. • The sizeof the arrow shows the magnitudeor strength of the force. If forces have the same strength, their arrows should be the same length. If one force is stronger, its arrow should be longer than the other force.

  11. Conclusions about Motion Activities… • What patterns/similarities/differences do you notice? Use evidence from the FBDs as well as your position-time graphs. • CONCLUSION: Constant V = balanced Speeding up or slowing down = unbalanced

  12. BIG IDEA #3 • Newton’s 1st Law of Motion • When the forces are balanced, the object’s velocity doesn’t change (object stays at rest or stays moving at constant speed). • When the forces are unbalanced, the object’s velocity changes (object speeds up or slows down).

More Related