1 / 12

PS CH 10 SEC 2

PS CH 10 SEC 2. FRICTION, GRAVITY, ELASTIC FORCES. GOAL/PURPOSE. PREVIOUSLY YOU LEARNED ABOUT FORCES AND COMBINING FORCES. NOW, YOU WILL CONTINUE TO COMBINE FORCES AND LEARN HOW GRAVITY AND FRICTION AFFECT MOTION. FRICTION.

mautrey
Download Presentation

PS CH 10 SEC 2

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. PS CH 10 SEC 2 FRICTION, GRAVITY, ELASTIC FORCES

  2. GOAL/PURPOSE • PREVIOUSLY YOU LEARNED ABOUT FORCES AND COMBINING FORCES. • NOW, YOU WILL CONTINUE TO COMBINE FORCES AND LEARN HOW GRAVITY AND FRICTION AFFECT MOTION

  3. FRICTION • FRICTION- IS A FORCE THAT TWO SURFACES EXERT ON EACH OTHER WHEN THEY RUB AGAINST EACH OTHER. • KEY- THE STRENGTH OF THE FORCE OF FRICTION DEPENDS ON THE TYPES OF SURFACES INVOLVED AND HOW HARD THE SURFACES PUSH TOGETHER. • KEY- FRICTION INCREASES WITH ROUGH SURFACES AND PRESSURE

  4. SKETCH

  5. TYPES OF FRICTION • STATIC FRICTION- THE FRICTION THAT ACTS ON OBJECT THAT AREN'T MOVING • EX – PUSHING THE DESK ACROSS FLOOR • SLIDING FRICTION- OCCURS WHEN TWO SOLID OBJECTS SLIDE OVER EACH OTHER • EX- BICYCLE BRAKES

  6. CONT’D • ROLLING FRICTION- WHEN AN OBJECT ROLLS ACROSS A SURFACE. LESS THAN SLIDING FRICTION • EX- WHEELS, BEARINGS • FLUID FRICTION- OCCURS WHEN A SOLID OBJECT MOVES THROUGH A FLUID. LES THAN SLIDING • EX- MACHINES, SURFING

  7. GRAVITY • GRAVITY- IS A FORCE THAT PULLS OBJECTS TOWARD EACH OTHER • KEY- ALL OBJECTS EXERT GRAVITY • EX- SOLAR SYSTEM, MOON, EARTH • KEY- THE FORCE OF GRAVITY BETWEEN OBJECTS INCREASES WITH GREATER MASS AND DECREASES WITH GREATER DISTANCE

  8. ANSWER THE FOLLOWING P.388 • 1ABC • 2ABC • 3AB • http://www.brainpop.com/science/motionsforcesandtime/gravity/

More Related