Physics: Interesting Follow-up to discussions

For those who participated in the discussions in physics, this article might be interesting to you. We talked extensively about the costs of scientific endeavours and whether the benefit was worth the investment. Soaring costs of raw materials and economic difficulties are bringing this issue to the forefront on many projects.

Fusion Falters Under Soaring Costs

Physics- Projectile Motion 1 Handout Answers

Included below are the answers for the handout on projectile motions. Please let me know if there are any issues.

1. 51.5 m
2. 14.7m; lands on the 4th bus
3. 1712m
4. 54.85 m
5. 48.1 m down

Physics- Oral Exam Details

The physics oral exam will be approximately 10 minutes long and will include the following topics:

• collisions and explosions
• projectile motion
• multiple masses
• electricity, circuits and magnets

You will be asked to solve a problem and explain your solution. You will be asked follow-up questions on the type of proble so be aware of some of the theory involved.

Order of Oral Exams

This is just a reminder for students of the order for each oral exam next week:

Precalculus

1. Brian
2. Kelcy
3. Clare
4. Lauren
5. Matt
6. Nabila
7. Mac
8. Ricky
9. Chase

Chemistry

1. Lauren
2. Brian
3. Matt
4. Chase
5. Mac
6. Clare
7. Nabila
8. Ricky

Physics

1. Mac
2. Nabila
3. Matt
4. Brian
5. Kelcy
6. Lauren

Physics- Exam Review Problems, June 3, 2009

Listed below are practice problems for each topic covered. You are not expected or required to complete all these questions- there is a mix of homework questions as well as novel questions for you to pick and choose from. Use these questions to help assess where you need to focus more time. Try a few problems from each topic to ensure that you are able to solve the problems.

Term 1

Forces in 2D

• Pg. 467, #7-9
• Pg. 474, #10-15

Multiple Masses

• Pg. 478, #14-18
• Pg. 485, #19-23
• Pg. 48, #24-29

Static Equilibrium and Torque

• Pg. 485, #29-30
• Model problem on pg. 496
• Pg. 501, #31-34

Collisions and Explosions

• Pg. 509, #35-37
• Pg. 515, #39-40
• Pg. 524, #41-45
• Pg. 528-529, #23-30 (chapter review problems)

Projectile Motion

• Pg. 536, #1-8
• Pg. 549, #13-14

Circular Motion

• Pg. 559, #15-19
• Pg. 566, #20-23
• Pg. 570, #15-25 (chapter review problems)

Universal Gravitation

• Pg. 580, #1-8
• Pg. 586, #9-14
• Pg. 597, #22-25 (chapter review problems)

Simple Harmonic Motion

• Pg. 623, #22-3 (chapter review problems)

Term 2

Fields and Forces (14.1- 14.3)

• Pg. 638 #1-5
• Pg. 640 #6-8
• Pg. 642 #7
• Pg. 646 #11-12
• Pg. 649 #15-17
• Pg. 655 #20-30
• Pg. 670 #38-41
• Pg. 678 #42-52
• Pg. 684 #18, 20, 21, 22

Electric Energy and Circuits (15.1-15.4)

• Pg. 692 #1-3
• Pg. 696 #4-10
• Pg. 708 #16-20
• Pg. 714 #21-26
• Pg. 710 #27-31
• Pg. 724 #32-35
• Pg. 726 #36-37
• Pg. 737 #40-42
• Pg. 740 #43-44
• Pg. 744 #46-50
• Pg. 748 #18

Magnets and Motors (16.1, 16.2)

• Pg. 778 #1-4

At the end of each chapter, there is a section review. These reviews contain many good questions that test your understanding of the concepts. You can use these to guide your studying.

Physics- Equations On Circuits Test

The following equations will be provided with the physics test:

Physics Test on Monday, May 25, 2009

This is just a reminder that there will be a physics test on Monday. The test will cover parts of chapter 15 on electric circuits. Possible test material includes:

• batteries
• electric potential
• electric current versus electron flow
• circuits- internal and external
• power
• resistance
• parallel and series circuits
• Kirchoff’s rule

Physics Assignment, May 5, 2009

Included below is the physics assignment due for Thursday, May 7. Please make sure you have completed #46-54. Please show all your work and write legibly.

physics-pg. 678

Physics Assignment- May 1, 2009

Attached below is the physics assigment. It will be due Tuesday, May 5, 2009. Please ensure that you complete questions 46-54 and that your work is neat and legible.

Physics Assignment

Happy Earth Day! Using Kites to Tap Wind Energy

I thought I would share this video with anyone who might be interested in what is happening in the renewable future. This video features Saul Griffiths discussing the possibilities of using kites to harness wind power. It’s a pretty interesting and short video (5 minutes) and might be of particular interest to those in physics. Enjoy!