Momentum 3/21/16 3/21 Momentum Egg Project- Build 3/22Momentum Egg Project- Drop 3/23 Momentum Egg Project- Report 3/24 Momentum Quiz 3/25No School

Momentum 3/14/16 Robotics

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Date: 3/14/16Goal: I can investigate the momentum of two objects in an inelastic collision Textbook p 310

Date: 3/14/16Goal: I can investigate the momentum of two objects in an inelastic collision Bell Ringer: The diagram below represents two satellites of equal mass, A and B, in circular orbits around a planet. Compared to the magnitude of the gravitational force of attraction between satellite A and the planet, the magnitude of the gravitational force of attraction between satellite B and the planet is

Date: 3/14/16Goal: I can investigate the momentum of two objects in an inelastic collision Textbook p 310 Title : 3/14 TB 310 #1a Create data table

Date: 3/14/16Goal: I can investigate the momentum of two objects in an inelastic collision Textbook p 310 Get a one computer per partner Log into lab_en.htmlhttp://phet.colorado.edu/sims/collision-lab/collision- lab_en.html Click more data Complete #1-4 with your partner

Date: 3/15Goal: I can understand how the change in momentum can affect an object Which statement is consistent with the data collected in Experiment 1 and Experiment 2? a. A greater contact area between block and surface results in greater friction force. b. Changing the contact area has little to no effect upon the amount of friction force. c. Varying the mass of the block does not have any effect upon the amount of friction. d. For the same load, a sandpaper surface causes more friction than a plain wood surface. Experiment 1 Diagram 1 depicts a procedure that is used to measure the friction force. A horizontal force is applied to a block on a table to accelerate it from rest. One observes that the force needed to initiate the motion (accelerate it from rest) is greater than the force needed to sustain the motion at a constant speed. Masses can be added to the block, thus increasing the load (L). The force required to initiate the motion is equal to the static friction force (Fstatic). The force required to sustain the motion at a constant speed is equal to the kinetic friction force (Fkinetic). Table 1 represents typical data from such an experiment. Experiment 2 - A student decides to investigate the effect of the surface on the amount of friction. She layers the bottom of the block with coarse sandpaper and then repeats the procedure described in Experiment 1. Her data is shown in Table 2

Date: 3/15Goal: I can investigate the momentum of two objects in an inelastic collision Robotics Vex Build and program Tuesday and Thursday after school Starts today for information in 215 4/15 showcase NEI 4/16 Showcase Downtown

Date: 3/15Goal: I can investigate the momentum of two objects in an inelastic collision Bell Ringer: Based on Model 1 below, if M1 and M2 are separated by a distance of d and have a gravitation force between them of 90N, what would the resulting force be if the distance between the objects increased by 3d?

Date: 3/15Goal: I can investigate the momentum of two objects in an inelastic collision Scholarly hour tomorrow in 221 for Physics

Date: 3/15Goal: I can investigate the momentum of two objects in an inelastic collision Textbook p 310 With your shoulder partner Complete # min

Date: 3/15Goal: I can understand the momentum of two objects in a collision Independently read TB p and take cornell notes Complete #1-3 on page 315

Date: 3/16Goal: I can understand how the change in momentum can affect an object Have your egg sheet and egg on your desk

Date: 3/16Goal: I can understand how the change in momentum can affect an object Bell Ringer: What are the units for the follow physics concepts: Energy- Power- Work- Force-

Date: 3/16Goal: I can understand how the change in momentum can affect an object With your shoulder partner complete the video discussion questions #1-8

Date: 3/16Goal: I can understand how the change in momentum can affect an object Video

Date: 3/17Goal: I can design a device to protect an egg from a 3 meter fall Read directions

Date: 3/17Goal: I can design a device to protect an egg from a 3 meter fall Brainstorm design ideas Create a rough drawing of your design on the back of the rubric – each partner ( do not take the supplies just look) Create a detailed shopping list with item cost and total cost

Date: 3/18Goal: I can design a device to protect an egg from a 3 meter fall Bell Ringer: A baseball player loses his grip on a bat and it goes flying into the crowd. The bat is heading towards a cell phone absorbed youth, as seen the picture on the left. The momentum of the bat is directing it towards the boy’s head. How does the bat end up behind the boy’s head in the picture on the right ?

Date: 3/18Goal: I can design a device to protect an egg from a 3 meter fall Read the rubric

Date: 3/18Goal: I can design a device to protect an egg from a 3 meter fall Create a final drawing of your design on the back of the rubric – each partner ( do not take the supplies, just look) Create a detailed shopping list with item cost and total cost

Date: 3/18Goal: I can design a device to protect an egg from a 3 meter fall 1.Create a final drawing of your design on the back of the rubric – each partner ( do not take the supplies, just look) 2.Create a detailed shopping list with item cost and total cost 3.Get approval from Mr. Stoll to start building your device Homework: Start creating your report-Introduction, Purpose, Question, and Hypothesis Due today: WB p collision activity NB: TB p. 315 #1-3 and TB p 310 #1-4 Last Weeks Work Momentum Movie sheet

Date: 2/26Goal: I can expalin how the change in momentum can affect an object With your shoulder partner complete the movie sheet from yesterday # min

Date: 2/26Goal: I can expalin how the change in momentum can affect an object With your shoulder partner complete WB p. 136 TEJ 10 min

Date: 2/26Goal: I can expalin how the change in momentum can affect an object Independently complete WB p min

Date: 2/26Goal: I can expalin how the change in momentum can affect an object Home work over the weekend TB p ,6 and p ,2,6,7 in your note book

Date: 2/26Goal: I can expalin how the change in momentum can affect an object Due today Notebook – TB p. 306 and take CN – TB p. 308 Essential Questions – HW: TB p. 307 # 1-3 – HW: TB: p. 315 #1-3 WB p Momentum video and Worksheet WB p

Date: 2/26Goal: I can expalin how the change in momentum can affect an object p ,6 p ,2,6,7

M As I'm sure you suspect, momentum in physics is different from "momentum" in sports on tv, as in "Yes, Chris, the Bengals really have momentum on this drive!". However, physics momentum is related to football momentum in that both concepts refer to how difficult it will be to stop something.What makes an object difficult to stop? Its mass, for one thing. After all, mass measures the inertia of an object - how much the object resists accelerating. Certainly, more mass means more momentum - the momentum of an object is directly proportional to its mass. Twice the mass means twice the momentum. Momentum is not the same as mass, though. For one thing, an object that is not moving has no momentum, no matter how much mass it has.Fast objects are also difficult to stop. Bullets have a very small mass, but you wouldn't want to try and stop one! More speed means more momentum - momentum is directly proportional to velocity. Twice the speed means twice the momentum.Since the momentum of an object is directly proportional to both its mass and its velocity,Momentum = (mass)(velocity) = mvMomentum is a vector quantity. Its direction is the same as the direction of the object's velocity.