2.  Chapter 3 Chapter 3

3. Watch this movie… screenshot the ending to prove you watched it.movie Watch this movie… screenshot the ending to prove you watched it.movie Get a 6/6 on this test and screenshot your final score… must have a 6 to move on.test Get a 6/6 on this test and screenshot your final score… must have a 6 to move on.test ***** Hint, resultant forces(in England) = net force(in America) 6 pts Get a 7/7 on this testtest Get a 7/7 on this testtest

4. Step 1: Type 500 Newtons into force box Step 2: Pick your object, same as chart on next slide Step3: Make sure friction is on for first trial and then do it again with friction off… fill in table on next slide Step4: Hit go… then hit pause. Step 5: Put Applied force and friction values into table on next slide… calculate your acceleration and enter that. Use Slideshow to click through this page… follow directions to complete the next slide Click here for PHET ANIMATIONhere Click here for PHET ANIMATIONhere

5.  Add Friction, check the controls, and set the value to 0.2 for static and kinetic friction, Does friction help motion or oppose motion (acceleration)? ObjectMass of Object (kg) Applied Force (Newtons) Playback and stop when moving line gets to force peak Friction Force (N) Calculated acceleration WITH FRICTION A= F/M Calculated acceleration WITHOUT FRICTION A= F/M Crate500 N Textbook500 N Dog500 N 16 pts Essential Question: How does friction effect your acceleration?_____________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________

6. What is friction? Provide a picture of friction in nature List the Three Types of Friction 1. Sliding Friction: Define 2. Rolling Friction: Define 3. Provide a real world written example of sliding friction Provide a real world written example of rolling friction Provide a real world written example of static friction Static Friction: Define Provide a picture of sliding friction Provide a picture of Rolling friction Provide a picture of static friction

7. Play this game and screenshot the certificate at the end when you win.game Play this game and screenshot the certificate at the end when you win.game 6 pts

8.  What is air resistance? Provide an object that has a ton of air resistance when it falls High Air Resistance Low Air Resistance

9. Air Resistance Video Click Me VideosWhich one hit firstWhy? Astronaut Feather and Hammer Apple and Ball How does Gravity effect all objects? How does air resistance effect all objects?