Physics Remote Learning Packet Please submit scans of written work in Google Classroom at the end of the week.

Week 7: May 11-15, 2020 Course: 11 Physics Teacher: Miss Weisse natalie.weisse@greatheartsirving.org Resource: Miss Weisse’s Own Physics Textbook — new pages found at the end of this packet Weekly Plan: Monday, May 11 ⬜ Read Unit 8 Part 6 of Miss Weisse’s Own Physics Textbook ⬜ Complete Worksheet 3 #1-5 ⬜ Email Miss Weisse with Questions and to Ask for Solutions Tuesday, May 12 ⬜ Read Unit 8 Part 6 of Miss Weisse’s Own Physics Textbook ⬜ Complete Worksheet 3 #6-8 ⬜ Email Miss Weisse with Questions and to Ask for Solutions Wednesday, May 13 ⬜ Review Unit 8 Part 6 of Miss Weisse’s Own Physics Textbook ⬜ Complete Worksheet 3 #9-10 ⬜ Complete Worksheet 4 #1-2 ⬜ Email Miss Weisse with Questions and to Ask for Solutions Thursday, May 14 ⬜ Review Unit 8 Part 6 of Miss Weisse’s Own Physics Textbook ⬜ Complete Worksheet 4 #3-4 ⬜ Email Miss Weisse with Questions and to Ask for Solutions Friday, May 15 ⬜ Attend Office Hours at 9:30 AM! W ⬜ Turn in your assignments on Google Classroom by the end of the day Sunday May 17. Statement of Academic Honesty I affirm that the work completed from the packet is mine and that I completed it independently. _______________________________________Student Signature

I affirm that, to the best of my knowledge, my child completed this work independently _______________________________________ Parent Signature

Monday, May 11 ➔ Read Unit 8 Part 6 of Miss Weisse’s Own Physics Textbook

➔ Complete Worksheet 3 #1-5 showing all your work.

➔ Email Miss Weisse with Questions and to Ask for Solutions

Energy Storage and Transfer Model Worksheet 3 #1-5: 

Quantitative Energy Calculations & Energy Conservation  

Be careful with units and unit conversions! 1. How much kinetic energy does a 2000 kg SUV traveling 70 mph have? (1 mile = 1600 meters)

2. Consider your 3 kg physics binder resting on the table in your bedroom. Determine the gravitational energy of the earth-book system if the zero reference level is chosen to be:

a. the table b. the floor, 0.68 meters below the book c. the ceiling, 2.5 meters above the book

3. A bungee cord stretches 25 meters and has a spring constant of 140

N/m. How much energy is stored in the bungee?

4. How fast does a 50 gram arrow need to travel to have 40 joules of kinetic energy?

5. How much energy is stored when a railroad car spring is compressed 10.0 cm? (The spring requires about 10,000 N to be compressed 3.0 cm.)

Tuesday, May 12 ➔ Read Unit 8 Part 6 of Miss Weisse’s Own Physics Textbook

➔ Complete Worksheet 3 #6-8

➔ Email Miss Weisse with Questions and to Ask for Solutions

Energy Storage and Transfer Model Worksheet 3 #6-8: Quantitative Energy Calculations & Energy Conservation 

Directions: For each problem, → identify what is part of your system inside the circle → create bar graphs for the initial (A) and final (B) conditions of the object (don’t forget to label your axes!) → write an equation for the conservation of energy

6. A load of bricks rests on a tightly coiled spring and is then launched into the air. Assume a 

system that includes the spring, the bricks and the earth. Do this problem without friction. 

7. Repeat problem 7 with friction.  

8. Repeat problem 7 for a system that does not include the spring. 

Wednesday, May 13 ➔ Review Unit 8 Part 6 of Miss Weisse’s Own Physics Textbook

➔ Complete Worksheet 3 #9-10

➔ Complete Worksheet 4 #1-2.

➔ Email Miss Weisse with Questions and to Ask for Solutions

Energy Storage and Transfer Model Worksheet 3 #6-8: Quantitative Energy Calculations & Energy Conservation 

Directions: For each problem,

→ identify what is part of your system inside the circle

→ create bar graphs for the initial (A) and final (B) conditions of the object (don’t forget to label your axes!)

→ write an equation for the conservation of energy  

9. A crate is propelled up a hill by a tightly coiled spring. Analyze this situation for a frictionless system that includes the spring, the hill, the crate, and the earth.  

10. Repeat problem 10 for a system that does not include the spring and does have friction.

Energy Storage and Transfer Model Worksheet 4 #1-2: Quantitative Energy Conservation 

 1. A cart moving at 5.0 m/s collides with a spring. At the instant the cart is motionless, what is the

largest amount that the spring could be compressed? Assume no friction.

a. Define the system with the energy flow diagram, then complete the energy bar graphs

qualitatively.

b. Quantitative Energy Conservation Equation:

c. Determine the maximum compression of the spring.

2. A rock is shot straight up into the air with a slingshot that had been stretched 0.30 m. Assume no air resistance.

a. Qualitatively complete the energy flow diagram and the energy bar graphs.

b. Quantitative Energy Conservation Equation:

c. Determine the greatest height the rock could reach.

Thursday, May 14 ➔ Review Unit 8 Part 6 of Miss Weisse’s Own Physics Textbook

➔ Complete Worksheet 4 #3-4

➔ Email Miss Weisse with Questions and to Ask for Solutions

Energy Storage and Transfer Model Worksheet 4 #3-4: 

Quantitative Energy Conservation  

3. Determine final velocity of the rollercoaster, assuming a 10% loss to friction.

4. The moon could be an ideal spaceport for exploring the solar system. A moon launching system could consist of a magnetic rail gun that shoots items into moon orbit. How much energy would be needed from the rail gun to get a 10,000 kg capsule into an orbit 100 km above the moon surface? The moon’s gravitational field strength is 1.6 N/kg and the orbital velocity for this altitude is 1700 m/s. Hint: Put the rail gun outside of the system.

 

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