1. Vocabulary Define and Understand – Inertia – System – environment – Relativity of Motion – Newtion’s 1 st law – Newton’s 2 nd law and how the acceleration of an object is affected by mass and net force – Newton’s 3 rd law (Punching the fly) – Net Force – acceleration

2. When I slam on the brakes, why do things fly forward in my car? What would happen I punch the gas? Which of Newton’s laws best explains this situations.

3. If something has velocity east and is speeding up, is the acceleration east or west? Is the Net force east or west? If there are forces east and west, which is bigger?

4. If something has velocity east and is slowing down, is the acceleration east or west? Is the Net force east or west? If there are forces east and west, which is bigger?

5. Newtons 2 nd and 3 rd Law If a 10,000 kg airplane runs into a 2kg bird and the force on the bird is 50,000N. What is the acceleration on the bird? What is the acceleration on the plane?

6. ΣF=ma 50 N __ N An upward 50 N force is applied to an apple which has a mass of.5 kg. What is the acceleration?

7. Toss a ball straight up in a car moving at constant velocity. Where will it land? What if the car accelerates? What does the “Cup” want to do? What does the cup have that makes it want to do this? What law is this?

8. F (N) a (m/s2) Mass equaled slope. Why?

9. F (N) a (m/s2) Is mass still the slope? -Besure you can still calculate the mass!

10. Elevators Be sure you can describe the motion fully for an elevator where the net force is either up or down. – Describe the motion using the direction of the velocity, acceleration, and Net force using appropriate vocabulary. Look over the Homework Assignments Look over Force Problems Worksheet (the key is on moodle) Watch the Supplemental Videos Email Me if you have any questions or concerns and good luck

11. Look over the Homework Assignments Look over Force Problems Worksheet (the key is on moodle) Watch the Supplemental Videos Email Me if you have any questions or concerns and good luck Bring your physics tool belt and you will do just fine.