## Thursday, September 30, 2010

### Physics Quest

Today you will do a Physics Web Quest to find information about Newton's Laws.

NEWTON’S LAWS OF MOTION AND FORCES

INTRODUCTION

Problems in physics will seldom look the same. Instead of solving problems by copying or by reproducing a previously solved problem, you should utilize your conceptual understanding of Newton's laws to work towards solutions to problems.

In this investigation you will gain a deeper understanding of the concept of net force that will help you solve the various problems assigned.

As you read each section on the websites, make sure you go through the practice problems and each demonstration and simulation.

By the end of this PhysicsQuest you will gain an understanding of weight, mass and net force (vector sum of all the forces) and Newton’s Three Laws of Motion.

PROCESS AND RESOURCES

As you read each section on the websites, make sure you go through the practice problems and each demonstration and simulation

NEWTON’S FIRST LAW

What is Newton’s First Law?

What is meant by Inertia?

FORCES

A variety of force types were placed into two broad category headings on the basis of whether

the force resulted from the contact or non-contact of the two interacting objects.

Define and give an example of each contact forces using your own words. (Frictional Force, Tensional Force, Normal Force, Air Resistance Force, Applied Force and Spring Force).

NEWTON'S SECOND LAW

What is Newton’s Second Law?

What is the formula for Newton’s Second Law?

Finding Acceleration

The process of determining the acceleration of an object demands that the mass and the net force are known.

Which equation should be used to solve for acceleration?

NEWTON'S SECOND LAW

Find individual forces.

Write the three major equations used in this section:

The equation for net force,

The equation for gravitational force and

The equation for frictional force.

FREE FALL AND AIR RESISTANCE

The objective of this section is to understand how air resistance works.

What are the two factors (among others) that affect air resistance?

Why do objects which encounter air resistance ultimately reach a terminal velocity?

Why do more massive objects fall faster than less massive objects?

When you get to the bottom of the page, click the blue "NEXT" arrow and go to the next page. (follow Newton's laws of motion. There are four pages.)

Make sure you understand all three of Newton's laws. During the next class, we will be applying them and using them to solve problems. I may even ask a group to come up front and discuss one of the laws in front of the class, so be prepared!

Write up anything you learned from the NASA site that you didn’t learn from the earlier sites along with the answers to all the questions above.

You will turn in your answers as a group. You can do the work in Microsoft Word and submit it

to me electronically through this site. Make sure all group member names are on the paper.

(submit it using the tool on the right side of the site:

Good luck and have fun!

Next class we will go over what you have learned and then apply it to different problems and situations.

## Tuesday, September 28, 2010

### Projectile Motion Review

Tuesday, September 28th

Make sure you finish the review on Multimedia Science School (see post below). If you finish that, then go to

http://www.physicsclassroom.com/Class/vectors/u3l2a.cfm and go through the whole section. When you reach the bottom of the page, click on "Next Section". There are six (6) sections for Projectile Motion.

Remember, the quiz is on homework Packets 1 and 2 - one and two dimensional motion.

Quiz dates:
Period 2 - Wed, 9/29
Period 3 - Wed, 9/29
Period 5 - Thu, 9/30
Period 6 - Fri, 10/1
Period 7 - Thu, 9/30

Email me if you have any questions.

Also - today, Tuesday, (and every Tuesday after) is CPEP - the pre-engineering program. Interested students should report to room C209 after school today.

## Monday, September 27, 2010

### Projectile Motion Review

Due to the inclement weather, we will not be doing the balloon lab before the quiz. (Yes, your quizzes are still as scheduled - see post below for reminders).

Once we go over the review problems, you will get into your groups and go to the computers and log in and complete the following activity as a great review on projectile motion.

Select Multimedia Science School - Physics - Mechanics - Kinematics - Lesson - Projectile Motion

Go through the entire lesson.

If you finish before the end of class, then you can also go to the following web site for more review:

## Friday, September 24, 2010

### Schedule Update

Today, Friday, September 24th we did:
Period 2 - finished the first projectile motion lab and started the review problems. Finish the lab packet and the review problems for homework.

Period 3 - finished the first projectile motion lab and started the review problems. Finish the lab packet and the review problems for homework.

Period 5 - went over the homework (packet 2, #10-16) and started first projectile motion lab. Do the review problems for homework.

Period 6 - finished the first projectile motion lab and started the review problems. Finish the lab packet and the review problems for homework.

Period 7 - went over the homework (packet 2, #10-16) and started first projectile motion lab. Do the review problems for homework.

Monday, September 27th we will:
Period 2 - go over review problems

Period 3 - go over review problems

Period 6 - go over review problems

Period 7 - finish LAB 1, go over review problems

QUIZ coming up. The quiz will be on Packets 1 and 2 (everything so far). You will be provided with the equations but you must understand how to use them and the physics concepts behind them.

Quiz Schedule:
Period 2 - Wed, 9/29
Period 3 - Wed, 9/29
Period 5 - Thu, 9/30
Period 6 - Fri, 10/1
Period 7 - Thu, 9/30

Good sites to use to review for quiz:
http://www.physicsclassroom.com/Class/1DKin/
and
http://www.physicsclassroom.com/Class/vectors/

### Great review site for lots of topics

The Khan Academy is a not-for-profit with the mission of providing a world-class education to anyone, anywhere.

They have tons of videos with lectures on reviews of different topics, including math, science, and more.

Check it out and definitely check out the section on Physics.

### Update on homework

There was an error on the second review problem. Part C should say "find y0"
See below for the fix:

## Thursday, September 23, 2010

### Schedule Update

Thursday, 9/23/10

Period 3 - completed the first projectile motion lab

Period 6 - went over the homework (Packet 2 #10-16)

Friday, 9/24/10

Period 2 - finish 1st projectile motion lab, review problems

Period 3 - finish 1st projectile motion lab, review problems

Period 5 - go over hmwk (Packet 2 #10-16), do 1st projectile motion lab

Period 6 - finish 1st projectile motion lab, review problems

Period 7 - go over hmwk (Packet 2 #10-16), start 1st projectile motion lab

Reminder: There will be a quiz on Packets 1 and 2 after we finish the labs for this section. I'll give you exact dates as they get closer.

Review for Projectile Motion:

http://www.physicsclassroom.com/Class/vectors/u3l2a.cfm

### A little help and clarification for inside Projectile Motion lab

Here is a little diagram that may help you with the inside Projectile Motion lab.

## Monday, September 20, 2010

### Schedule Update

Today:
Period 2 - finished 2D motion, Projectile Motion - homework is Packet 2, #10-16
Period 3 - went over the homework that was due today (Packet 2, #10-16). Reminder to do extra problem from board for homework.
Period 5 - went over the homework that was due today (Packet 2, #1-9) and then finished Projectile Motion lecture. Homework is Packet #2, #10-16
Period 6 - went over the homework that was due today (Packet 2, #1-9)
Period 7 - finished Projectile Motion lecture. Homework is Packet #2, #10-16

Tuesday:
Period 2 - go over hmwk, Packet 2, #10-16 and then start lab
Period 6 - finish Projectile Motion lecture. Homework will be packet 2, #10-16

I also posted a new set of lecture slides for Vectors and Projectile motion that have all the solutions to the examples in them. Get the file here: https://sites.google.com/site/dandradeedusite/Home/physics-class-files
(Physics - Vectors and Projectile Motion.pdf)

## Friday, September 17, 2010

### Schedule Update

Friday, 9/17/2010

Period 2 - we went over the homework (packet 2, #1-9) and collected the lab packets

Period 3 - we did the second part of 2D motion (projectile motion). Your homework is Packet 2, #10-16
The lab packets were also collected.

Period 6 - we did the first part of 2D motion (vectors). Your homework is Packet 2, #1-9
The lab packets were also collected.

Period 7 - we went over the homework (packet 2, #1-9) and collected the lab packets

The class slides are now posted for all of 2D Motion.
You can find them HERE. The file is called "
This file includes the examples and the summary of the trigonometry functions.

Remember to email me if you have questions with your homework.

Reminder: if you did not turn in your lab today, it is late. 5 points off for each day late, so turn it in immediately.

Monday, 9/20/2010

Period 2 - we will continue 2D motion (projectile motion)
Period 3 - we will go over the homework (Packet 2, #10-16)
Period 5 - we will go over the homework (Packet 2, #1-9) and then continue 2D Motion - Projectile Motion)

Period 6 - we will go over the homework (Packet 2, #1-9)
Period 7 - we will continue 2D motion (projectile motion)

## Thursday, September 16, 2010

### Schedule Update

Thursday, 9/16

Period 3 - we went over the homework today (Packet 2, #1-9). On Friday we will continue 2D motion and learn about Projectile Motion.

Period 5 - did the 1st part of 2D motion. Homework is Packet #2, #1-9 due Monday. Don't forget to get me your lab packets. If turned in Friday, it's only a little late. If turned in Monday, it's VERY late.

Period 7 - did the 1st part of 2D motion. Homework is Packet #2, #1-9 due Monday. Don't forget to get me your lab packets turned in on Friday.

## Wednesday, September 15, 2010

### Schedule Update

Today, Wednesday:
Period 2 and 3 started 2D motion and vectors.
Period 2 - Packet 2, #1-9 is due Friday
Period 3 - Packet 2, #1-9 is due tomorrow.
Period 6 - we went over the rest of Packet 1 homework and did the velocity/acceleration lab.

LAB Packet Due Date Reminders:
Period 2 - Friday
Period 3 - Friday
Period 5 - Thursday
Period 6 - Friday
Period 7 - Friday

Thursday, 9/16:

Period 3 - we will go over the homework (packet #2, #1-9) and then continue with 2 Dimensional Motion

Period 5 - collect the lab packets and then start 2 Dimensional Motion

Period 7 - collect the lab packets and then start 2 Dimensional Motion

## Tuesday, September 14, 2010

### Schedule Update

LAB Packet Due Dates
Period 2, 3 and 6 - your lab packets are due Friday, 9/17
Period 5 and 7 - your lab packets are due Thursday, 9/16

Today, Tuesday, 9/14 we did the following:
Period 2 - finished the velocity/acceleration lab
Period 5 - finished the velocity/acceleration lab
Period 7 - went over the homework (problems 9-14) and did the velocity/acceleration lab

Wednesday, 9/15
Period 2 and 3 will start 2 Dimensional Motion
Period 6 - we will go over the homework (problems 9-14) and do the velocity/acceleration lab

Remember, email me (dandrade@bridgeportedu.net) if you have any questions on homework or assignments.

### Schedule Update

Period 2, 3 and 6 - your lab packets are due Friday
Period 5 and 7 - your lab packets are due Thursday

Today, Tuesday, 9/14 we did the following:
Period 2 - finished the velocity/acceleration lab
Period 5 - finished the velocity/acceleration lab

Wednesday, 9/15

## Monday, September 13, 2010

### Schedule Update

Today we did not have period 2 today due to the extended homeroom.

Period 2  - tomorrow we will finish the velocity/acceleration lab

Period 3 - you should have finished your lab today. Your homework is to finish the lab packet including graphs. It is due on Wednesday. There will be a little bit of time for one group to finish the lab 1st.

Period 5 - tomorrow we will finish the velocity/acceleration lab and then do an activity.

Period 6 - you have homework - Packet 1, #9-14. We will go over that Wednesday and then start the velocity/acceleration lab.

Period 7 - you have homework - Packet 1, #9-14. We will go over that tomorrow and then start the velocity/acceleration lab.

## Tuesday, September 7, 2010

### Schedule Update

Today:
Period 2 finished 1-D motion. Homework is Packet #1, Exercises #9-14
Period 6 finished the 1st half of 1-D motion. Homework is Packet #1, Exercises #1-8

Reminders:
Period 3 - your homework, Packet #1, #1-8 is due Wednesday, we will then continue with 1-D motion
Period 5 - your homework, Packet #1, #1-8 is due Wednesday, we will then continue with 1-D motion
Period 7 - your homework, the Carl Lewis problem, is due Wednesday. We will then continue with 1-D motion.

Remember to email me if you have any questions on your homework.

Lecture Notes from this unit

Tutorial on 1-Dimensional Motion

## Friday, September 3, 2010

### Period 6 and 7

We went over the review sheet today and started 1D motion.

Carl Lewis once ran 100m in 9.92s.

What was his average speed during that run?

How much distance did he cover per second, on average?

How did this relate to his top speed?

### Schedule Update

Period 2 and 3: Homework, due next class, is packet #1, Exercises 1-8. Do not do the second part.

## Thursday, September 2, 2010

### Schedule Update

Period 5 - finished the first part of 1D motion today. Your homework is physics Packet #1, Exercises #1-8. Do not do the second part of it.

Periods  2, 3, and 6 - We will continue 1D motion tomorrow (Friday) and you will have homework over the weekend.

Homework is due the next class.

## Wednesday, September 1, 2010

### Schedule Update

Wednesday, 9/1/10

Period 3 and Period 6 - you have your homework assignment - the Physics Toolkit worksheet. It is due next class (Period 3 on Thu and Period 6 on Friday).

Reminder to Period 5 - your homework is due tomorrow (Thu).

Reminder to all students that due to the high heat, Thursday will be an early dismissal.

Also, Hurricane Earl may have an affect on us this week/weekend.

You should be prepared for emergencies - for more information, go to the following websites: