Chapter 3, Section 2 Newton’s 1 st Law of Motion: Life and Death before and after Seat Belts

Grade Tests (MC)

November 15, 2010 HW: 3.2 PTG #1-7, Skip 4, pg 274 Due Wed Learning Objectives:  Explain how Newton’s 1 st Law applies to collisions between objects  Apply the relationship between pressure, force and area to different situations  Process skill: Make a prediction based on the question using both the independent and dependent variable Success Criteria:  Define Newton’s 1 st Law  Describe how inertia relates to mass and velocity of an object  Explain the forces in a collision, Identify the relative magnitude and direction  Explain how seatbelts work according to Newton’s 1 st Law  Describe how different widths on a seatbelt makes it more/less effective and why  Explain the relationship between pressure, force, and area Do Now:  WDYS/WDYT pg. 266 Agenda:  Do Now  Investigate

3.2 Learning Objectives and Success Criteria-Please write on a new left side page in your notebook Learning Objectives:  Explain how Newton’s 1 st Law applies to collisions between objects  Apply the relationship between pressure, force and area to different situations  Process skill: Make a prediction based on the question using both the independent and dependent variable Success Criteria:  Define Newton’s 1 st Law  Describe how inertia relates to mass and velocity of an object  Explain the forces in a collision, Identify the relative magnitude and direction  Explain how seatbelts work according to Newton’s 1 st Law  Describe how different widths on a seatbelt makes it more/less effective and why  Explain the relationship between pressure, force, and area

Chapter Challenge! clh8INNY clh8INNY Pg

Snowball!!! Explain Newton’s 1 st Law How do you think it works in car crashes?

November 16, 2010 HW: 3.2 PTG #1-7, Skip 4, pg 274 Due Wed Learning Objectives:  Explain how Newton’s 1 st Law applies to collisions between objects  Apply the relationship between pressure, force and area to different situations  Process skill: Make a prediction based on the question using both the independent and dependent variable Success Criteria:  Define Newton’s 1 st Law  Describe how inertia relates to mass and velocity of an object  Explain the forces in a collision, Identify the relative magnitude and direction  Explain how seatbelts work according to Newton’s 1 st Law  Describe how different widths on a seatbelt makes it more/less effective and why  Explain the relationship between pressure, force, and area Do Now:  Predict what will happen to the “man” at higher speeds when he doesn’t have a seat belt.  What will happen to him when he wears a seatbelt? Agenda:  Do Now  Investigate

Investigate: Part A #1 Set up #2 Prediction, Data #3 Prediction, Data

Investigate: Part B Set up Prediction: What do you think will happen to the passenger as the “seat belts” get wider? #1-3 Data Collection #4-Answer in your notebook

Exit Slip: Provide evidence that Newton’s 1 st law is working in collisions. How do seatbelts affect Newton’s 1 st law during collisions?

November 16, 2010 HW: 3.2 PTG #1-7, Skip 4, pg 274 Due Wed Learning Objectives:  Explain how Newton’s 1 st Law applies to collisions between objects  Apply the relationship between pressure, force and area to different situations  Process skill: Make a prediction based on the question using both the independent and dependent variable Success Criteria:  Define Newton’s 1 st Law  Describe how inertia relates to mass and velocity of an object  Explain the forces in a collision, Identify the relative magnitude and direction  Explain how seatbelts work according to Newton’s 1 st Law  Describe how different widths on a seatbelt makes it more/less effective and why  Explain the relationship between pressure, force, and area Do Now:  Why do you think the seatbelts did less damage to the passenger as they got wider? Agenda:  Do Now  Physics Talk

Physics Talk- Read the whole physics talk Use 2-column notes to organize and take notes on the physics talk

How do to 2 column notes Question Word Main Idea Answer Definition Details

Pressure! What is pressure? How do you calculate pressure? Force per area, where force is perpendicular to the surface. P=F/A P=pressure (pascal) F=Force (Newtons) A=Area (m 2 )

Pressure sample problems Pg

Exit Ticket What are the 3 collisions that occur in any accident?

November 17, 2010 HW: None Learning Objectives:  Explain how Newton’s 1 st Law applies to collisions between objects  Apply the relationship between pressure, force and area to different situations  Process skill: Make a prediction based on the question using both the independent and dependent variable Success Criteria:  Define Newton’s 1 st Law  Describe how inertia relates to mass and velocity of an object  Explain the forces in a collision, Identify the relative magnitude and direction  Explain how seatbelts work according to Newton’s 1 st Law  Describe how different widths on a seatbelt makes it more/less effective and why  Explain the relationship between pressure, force, and area Do Now:  #9 pg. 275 Agenda:  Do Now  PTG Review  Essential Question  Quiz

PTG Review Groups select problems

Essential Questions Use Newton’s 1 st law to explain why a passenger keeps moving when a vehicle suddenly stops. What evidence do you have from your experiments that collisions at higher speeds will have greater effect on the passenger? How does what you learned in this section help you design a safety device for a collision even though you don’t know the exact circumstances of the collision?

LO and SC Reflection Complete LO and SC reflection in notebook Share out answers What is a “good” answer? How do you know?

Quiz