2. Newton’s First Law of Motion 12/2/13 – 12/6/13 12/2 Newton’s 1 st Law of Motion WB p. 76 HW: TB p 138 #1-6 in NB 12/3 Newton’s 2 nd law of Motion WB p.77-84 12/4Newton’s 1 st and 2 nd law of Motion / Quiz

3. Goal: I can review and explain Newton’s first and second Law of Motion Bell Ringer: Write out the following equations using words. For example: v=d/t Velocity equals distance divided by time 1.GPE= mgh 2.a= v f -v i /t 3.KE=1/2 mv 2

4. Today’s Activiy 1.Complete the data table on 75. 2.Complete a conclusion on page 76 in the WB based on my observations. 3.Review WB p.77-80

5. Constant Force Data WB p. 75 Total mass of cart and extra mass Acceleration Run 1Cart100g=.1kg Run 2Cart plus 100g =.1kg 200g=.2kg Run 3Cart plus 150g=.15kg 250g=.25kg Run 4Cart plus 200g=.20kg 300g=.3kg.108 m/s/s.025 m/s/s.018 m/s/s.008m/s/s

6. Support for the Conclusion WB p.76 Claim based on evidenceEvidence (observation) 1.When a constant force acts on an object_______ _____________________ 2.When the mass of an object is increased and the magnitude of the force on the object remains constant its acceleration___________ _______________________ it accelerates decreases The cart started out slow and moved faster As we added more mass, the cart started out fast and moved slower

7. Conclusion WB p. 76 My claim is _____________________________ _____________because___________________ __________________________________________ Another claim is ____________________________ __________________________________________ ___________________________because________ __________________________________________ when a constant force acts on an object it acceleratesthe cart in our activity accelerated when a constant force was applied to it. I have also seen this in life when……… when the mass of an object is increased and the magnitude of the force on the object remains constant, its acceleration decreases

8. Goal: I can review and explain Newton’s first and second Law of Motion Bell Ringer: A ball rolls from point A to B. Explain how the ball’s KE and GPE will be different from position A and B A B

9. Goal: I can review and explain Newton’s first and second Law of Motion As a class complete WB p. 76

10. Goal: I can review and explain Newton’s first and second Law of Motion Independently read and annotate WB p. 77-80 12min

11. Workbook p. 81 Complete with your face partner Partner A completes 1 Partner B completes 2 Share your answer with your partner, agree on the answer and write down the answer Continue this process through p. 81-82

12. Goal: I can draw examples of Newton’s 1 st and 2 nd laws. Bell Ringer: 1.What is the acceleration of the dog in the picture? F=ma

13. Today’s Activity Create a poster of Newton’s First Law of Motion 1.State Newton’s First Law 2.Draw an example 3.Explain your example

14. State Newton’s First Law State Newton’s first law Draw an examples Explain your example The blocks are at restThe blocks want to stay in motion Name Period Date

15. State Newton’s 2 nd Law State Newton’s 2 nd law Draw an examples Explain your example The force on the baseball is equal to the mass of the bat times the bat’s acceleration Name Period Date 2 nd poster

17. Newton’s 1 st Law

20. Newton’s 2nd Law

21. What’s acceleration? Newton’s 2 nd Law

25. Workbook p. 81 Complete with your face partner Partner A completes 1 Partner B completes 2 Share your answer with your partner, agree on the answer and write down the answer Continue this process through p. 81-82

26. 11/29 Roller coaster project Textbook p. 404 1.Target Audience 2.Drawing Top view and a side view 3.Calculations 4.Description of modifications to the roller coaster. Write 5 ideas 5.Include : mass of car, safety, GPE at top of the first hill, KE at the bottom of the first hill, velocity at several points

27. Date: Goal: I can read a text and take Cornell Notes, identifying key terms, main ideas, and questions raised. Bell Ringer: Define centripetal force and give me an example of centripetal force.

28. Today’s Activity 1.Read Workbook p. 88 2.Take cornell notes in notebook. Topic: WB p. 88 3.You have 4 minutes 4.Students will be asked to explain their notes

29. 1.Video 2.Read Workbook p. 89 3.Take cornell notes in notebook. Topic: WB p. 89 3.You have 4 minutes 4.Students will be asked to explain their notes Due Today Notebook and p. 85 of workbook will be collected at the end of class

37. Date: 11/4/13Objective: I can distinguish between mass and weight. I can also calculate weight in Newtons (N) Bell Ringer: 1.As the roller coaster travels from point A to B, how do its potential and kinetic energies change? 2.As the roller coaster travels from point D to E, how do its potential and kinetic energies change? A B C D E

38. Date: 11/4/13Objective: I can distinguish between mass and weight. I can also calculate weight in Newtons (N) Activity Titled : Textbook p. 392 Answer Investigate Part A questions 1-5 in your Notebook Answer questions with your shoulder partner. Both partners must write their answers

39. DEFINITIONS Mass - the amount of matter an object has. Matter- something that has mass and takes up space. Weight- is the amount of mass of an object, it is dependent upon gravity. 1 pound (lbs)=.45 kilogram (kg)

40. Look at this figure. The mass of the bowling ball does not change, but the mass of the puppy does. How? Where does the matter come from? Can the mass of the bowling ball ever change?

42. Place these 5 items in the order they would be the most attracted to the Earth due to gravity. Explain why you picked your order. House fly Tennis ball Elephant Bowling ball peanut

43. Exit Question What would happen to your mass and to your weight if you went to the moon? Explain how you arrived at your answer.

44. Date: 11/5/13Objective: I can investigate Newton’s first law of motion Bell Ringer: 1.What would happen to your mass and to your weight if you went to the moon? Explain how you arrived at your answer. 2.Calculate the weight of a 50kg ball? F w =mg

45. Place these 5 items in the order they would be the most attracted to the Earth due to gravity. Explain why you picked your order. House fly Tennis ball Elephant Bowling ball peanut

46. 11/4/13 Activity Workbook page 65 Read demonstration as a group Complete workbook p.67 independently

47. 11/5/12 Activity Complete workbook p.68

48. Date: 11/6/13Objective: I can understand Newton’s first law of motion and apply the concept to my daily life Bell Ringer: Based on our activity Yesterday, if the roller Coaster starts at point B What point will the cart Reach? D or E or F Explain why

49. 11/6/13 Objective: I can understand Newton’s first law of motion and apply the concept to my daily life Independently read and annotate Workbook p 69-71 7 minutes

50. 11/6/13 Objective: I can understand Newton’s first law of motion and apply the concept to my daily life Video

51. 11/6/13 Objective: I can understand Newton’s first law of motion and apply the concept to my daily life Workbook page 72 complete TEJ

52. 11/6/13 Objective: I can understand Newton’s first law of motion and apply the concept to my daily life HW: Read WB p. 73-75 in the workbook. Annotate for procedural words and underline where information should be recorded. Note any directions that are unclear.

53. Date: 11/7/12Objective: I can read and understand procedures to perform an activity on Newton’s second law of motion work book to page 73-75 Perform activity Person #1 supplies-set up, take down, and care of Person #2 operates the glx Person #3 records data Person #4 manages and protects car

54. Date: 11/7/12Objective: I can read and understand procedures to perform an activity on Newton’s second law of motion work book to page 73-75 Perform activity Person #1 supplies-set up, take down, and care of cart Person #2 operates the glx Person #3 records data Person #4 read procedures

55. Example of a conservative system: The simple pendulum. Suppose we release a mass m from rest a distance h 1 above its lowest possible point. – What is the maximum speed of the mass and where does this happen ? – To what height h 2 does it rise on the other side ? v h1h1 h2h2 m

56. Example: The simple pendulum. y y= 0 y=h 1 – What is the maximum speed of the mass and where does this happen ? E = K + U = constant and so K is maximum when U is a minimum.

57. Example: The simple pendulum. v h1h1 y y=h 1 y=0 – What is the maximum speed of the mass and where does this happen ? E = K + U = constant and so K is maximum when U is a minimum E = mgh 1 at top E = mgh 1 = ½ mv 2 at bottom of the swing

58. Example: The simple pendulum. y y=h 1 =h 2 y=0 To what height h 2 does it rise on the other side? E = K + U = constant and so when U is maximum again (when K = 0) it will be at its highest point. E = mgh 1 = mgh 2 or h 1 = h 2

59. Potential Energy, Energy Transfer and Path A ball of mass m, initially at rest, is released and follows three difference paths. All surfaces are frictionless 1.The ball is dropped 2.The ball slides down a straight incline 3.The ball slides down a curved incline After traveling a vertical distance h, how do the three speeds compare? (A) 1 > 2 > 3 (B) 3 > 2 > 1 (C) 3 = 2 = 1 (D) Can’t tell h 13 2

60. An experiment Two blocks are connected on the table as shown. The table has a kinetic friction coefficient of  k. The masses start at rest and m 1 falls a distance d. How fast is m 2 going? T m1m1 m2m2 m2gm2g N m1gm1g T fkfk Mass 1  F y = m 1 a y = T – m 1 g Mass 2  F x = m 2 a x = -T + f k = -T +  k N  F y = 0 = N – m 2 g | a y | = | a y | = a =(  k m 2 - m 1 ) / (m 1 + m 2 ) 2ad = v 2 =2 (  k m 2 - m 1 ) g / (m 1 + m 2 )  K= -  k m 2 gd – Td + Td + m 1 gd = ½ m 1 v 2 + ½ m 2 v 2 v 2 =2 (  k m 2 - m 1 ) g / (m 1 + m 2 )