#Goals: SWBAT...
1. Use the word of the day in a sentence
2. Describe how momentum is transferred during a collision.
3. Measure in SI the momenta involved
4. Interpret Data from a collision.
5. Draw Conclusions that support the law of conservation of momentum.
WARM-UP & HW Check:
A. Your word of the day is: http://www.merriam-webster.com/word-of-the-day
Use it in a sentence.
B. Imagine a Big Rig hits a Prius. Who wins? Does the velocity of the Prius and/or Big Rig matter? Does the mass of the Prius and/or Big Rig matter?
C. Imagine that when they impact, the Big Rig is going North at 50mph, and the Prius is going South at 50mph. The two vehicles stick together after the collision. Which way will the stuck vehicles travel? Are you sure? How can you be so sure???
D. If you haven't yet, find the formula and definition for Momentum. Add them to your Equation Chart
CLASSWORK:
1. Two Types of Collisions (add to your notes)
Elastic collision. (don't stick together) In an elastic collision, the total kinetic energy (energy from movement) in the system is the same before and after the collision. If losses to heat and deformation are much smaller than the other energies involved, such as when two pool balls collide and go their separate ways, you can generally ignore the losses and say that kinetic energy was conserved.
Inelastic collision. (stick together) In an inelastic collision, the collision changes the total kinetic energy in a closed system. In this case, friction, deformation, or some other process transforms the kinetic energy. If you can observe appreciable energy losses due to nonconservative forces (such as friction), kinetic energy isn’t conserved.
2. Basic Practice Problems
Your brother’s mass is 35.6 kg, and he has a 1.3-kg skateboard. What is the combined momentum of your brother and his
skateboard if they are moving at 9.50 m/s?
3. Momentum Lab
http://www.glencoe.com/sec/science/internet_lab/olc.php?olcChapter=809
Create a Google Doc using your school account. Share it with me (j.alexander@tch.birminghamcharter.com) and all your groupmates. I will be giving you feedback today and other days as you do your write-up. Make sure you give me permission to edit.
**Need help using the triple beam balance? Here --> https://middleschoolscience.com/2015/06/28/reading-a-triple-beam-balance/
Goal for today:
Title
Names
Data from Procedure section
Your Final Product:
- Google Document with:
A. Answers to each question from: Analyze, Conclude & Apply; Going Further; Real-World Physics sections
B. Completed data table.
HOMEWORK:
FRIDAY
1. Notes Sheet for Ch 6 Exam (6.1 and 6.3 only)
2. Exam on Friday. You may use your Equation Chart and 1pg sheet notes (single side)
TUESDAY
2. Read pg 229-231. Reading Quiz Tuesday
3. Watch: http://www.flippingphysics.com/helmet.html
4. Watch: https://www.youtube.com/watch?v=dbZA5_b3HOA&feature=youtu.be
5. Complete Example problem #1 from pg 232, pg 235 6 & 8
#Goals: SWBAT...
1. Calculate Impulse
2. Calculate change in momentum
3. Collect and Interpret velcity-time Data from a collision involving two carts
4. Compare system momentum before and after collisions
5. Calculate kinetic energy before and after collisions
WARM-UP & HW Check:
Solve problem #57 on pg 251
CLASSWORK:
1. HW Review
2. Momentum and Collisions Lab:
Your Final Product:
- Word Document with:
A. Answers to each question
B. Completed data table.
C. Due Friday
Tutoring available after school Mon, Tues, and Wed until 4:30. Lunch almost every day.
HOMEWORK:
1. Complete #5 from pg 233; and #9-11 on pg 235
2. Complete pg 250-252 problems: 47; 48; 58; 69