1. Forces in One Dimension 4.1 Force and Motion 4.2 Using Newton’s Laws Jacob and logan

2. Define the following: Force F Contact forces Field forces Free-body diagram John and austin

3. How do we study force? A force exerted on an object causes an acceleration (a change in velocity). A system is whatever object we are considering the force of. Around that system is the external world (which includes gravity and any applied forces). We must construct a free-body diagram that includes the object, or system, and ALL applied forces, including gravity. Peyton and katie

4. Practice p.89 For our purposes we will ignore air resistance. Draw a free-body diagram for #1-5 and include all forces. Meghan and angel

5. Newton’s Second Law Find Newton’s Second Law on p.93 Use Newton’s 2 nd Law to solve practice problems 6-8. ◦ You must draw a free-body diagram! ◦ Chelsea and auggie

6. Newton’s First Law Find Newton’s First Law on p.94. Write Newton’s 1 st Law in your notes Write the definition of ◦ Inertia ◦ Equilibrium Read the final paragraph on p.95 before the section review. What does this mean? Dj and chad

7. 4.2 Using Newton’s Laws How is Newton’s 2 nd Law written differently on p.96? How does a scale work? Use your new formula to solve Practice problems on p.97 #15-18 Morgan and amber

8. Bellringer Draw a free-body diagram for the following situations including all forces acting on the system. Determine net force for each situation. 1.A block is pushed with an unbalanced force of 20 N to the left. 2.A football is kicked through the uprights.

9. 4.2 Definitions Define the following starting on p.98 ◦ Apparent weight ◦ Weightlessness ◦ Drag force ◦ Terminal velocity

10. Elevator Complete practice problems #19-20 on page 100. There will be an elevator problem on your test!

11. Assignment Complete all problems on the 4.1 and 4.2 section reviews.

12. Bellringer: 1. Luke Skywalker, Jedi knight-in-training (or padawan) is able to use the Force to lift a rock weighing 5 kg. How much Force is required to lift it? 2. Master Yoda, being stronger in the Force than Luke, was able to lift an 8,000 N X-wing fighter. What is the mass of the X-wing? 3. How much stronger in the Force is Yoda than Luke? (in Newtons, not midichlorians)

13. Interaction Forces Write out Newton’s Third Law in words. What equation will go with Newton’s Third Law? ◦ Complete practice problems together on p.104

14. Tension Tension is the force exerted by a string or a rope. ◦ Complete practice problem p.106 #32 together ◦ Complete practice problem #33 on your own. ◦ Define Normal Force

15. Assignment Complete the section review on p.107 (36-39)

16. 5.2 Friction Define static friction and kinetic friction. What is the symbol for the coefficient of friction? What is the equation for either type of friction?

17. Practice together P.128 (17-21) P. 130 (22-26)