Welcome to Mrs. Sauder

1
Welcome to Mrs. Sauders Physics Class!

• Pick up purple, green, yellow piece of paper at
  front of the room.
• Read the notecards from last years students
• PURPLE CARD Quick reference, You keep this.
• GREEN CARD PRINT your name in first blank.
  Your desk number is your calculator number. Sign
  and date. Have your folks sign and date this
  eve. Include your period. Return no later than
  Thursday.
• Yellow SAFETY REVIEW SHEET This will be due on
  Wednesday Sept 2. You may begin working on this
  while waiting for class to start. A Class Copy
  of the Safety Rules (code for DO NOT REMOVE FROM
  MY ROOM) is located beneath your desk. These
  copies will be there all week. The Safety Rules
  are also posted on my webpage.

2
OPENING DAY SCAVENGER HUNT

• When your are completed, you must show me so I
  can check you off. Then take a seat.

3
END OF CLASS

• Place pink Safety Sheets under desk
• Answer puzzle question
• Remind students of HW
• Recommend Grade Book Access
• Answer any questions
• Have students log on to remind

4
Remind 101PHYSICS

• Text to 81010
• Send this message _at_18ca09
• (THE _at_ symbol is missing on the yellow sheet)
• Dont write this down.the information is on the
  purple card

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Syllabus and Policies

• Supplies
• Pencil, pens, paper
• Folder, spiral, or 3 ring binder
• Scientific Calculator at home
• The policies and syllabus are on my website.
  Check it out, have your folks check it out.
  Filling out the Safety Contract indicates the
  policies and safety have been read. Have this
  signed by Thursday 9/27. If you do not have
  internet at home, see me after class.
• What about books?

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Expectations

• Tardies
• Door closes at bell. You will need to go to
  office across the hall to get admit slip.
  (Exceptions 1st 5th period tardies go to
  cafeteria tardy station)
• Digital Toys
• Put them away unless we are using them. I will
  take them up.
• Leaving classroom (RR or for other reasons)
• Sign on clipboard indicating time out/in where
  you are going.
• Place phone inside clipboard.
• Classroom decorum
• Politeness
• Preparedness
• Honesty
• See and Do!!!!
• Dont sharpen pencils when I am speaking
• Put stuff away (chairs, lab supplies, trash)
• This is not a restaurant. NO FOOD or DRINKS
• Dont lose your papers one copy only
• Stay seated until I dismiss you
• Pet Peeve

7

• When you have been absent.
• I expect you to check my web page and see what
  you have missed.
• Paperwork is in mailbox at back of room

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Just so you know

• I am not your mother.
• I am not your maid.
• I am not your secretary.
• Be responsible for you.

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This is what I will do for you.

• Awesome lectures
• Relevant labs
• Assign homework!!!!!!!! This is so you can
  practice your new found skills ?
• Website support
• Tutoring, Make Ups, Retakes
• Monday-Thursday after school
• (I leave the building at 330)
• Never Friday after School
• Mornings by appointment.

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Finally

• Test days are Wednesday or Friday
• The only extra credit offered are BOPS (bonus
  opportunity points)
• See my WebPage

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safety

• Show video
• AGHS Lab Safety Rap - YouTube
• Safety Review-Due Wed 9/2 BOC
• Safety Contract-On WebSite-Must sign on line
• Fire Drills and phone policy

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8/25 Game Plan

• Sit in your assigned seats
• Pick up Math Review and Purple Folder
• Purple Folder should have the Pink Safety Sheet.
  This folder is for CLASS COPIES. If there is
  student work in there, please bring to me. ?
• Begin Math Review
• Turn in calculator contracts (green card) to blue
  sorter (file under first letter of your last
  name)

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Measurement.looking for relationships
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Order of Operations

• When there is more than one operation involved in
  a mathematical problem, it must be solved by
  using the correct order of operations .
• Remember, calculators will perform operations in
  the order which you enter them, therefore, you
  will need to enter the operations in the correct
  order for the calculator to give you the right
  answer.

15

• PLEASE EXCUSE MY DEAR AUNT SALLYor
  justP.E.M.D.A.S.Parentheses
• ExponentsMultiplicationDivisionAdditionSubtra
  ction

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OOO Practice Problems

• 1. 18
• 2 x 3
• 2. 214 32

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OOO Practice Problems

• 1. 18
• (2 x 3)
• 18
• 6 3

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OOO Practice Solutions

• 2. 214 32
• 214 9
• 25
• 10

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Isolating Variables

• Work backwards to isolate a variable. 

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Isolating Variables Practice

• 3. 6 18a
• a
• 4. F ma
• a
• 5. d/t v
• t
• 6. 8 16/x
• x
•  

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• 7. d 1/2at2
• t

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Isolating Variables Practice Solutions

• 0.33
• F/m
• 5. x/v
• 6. 2
• 7. vd/.5a

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Why Scientific Notation?

• It makes it easier to work with very large and
  very small numbers.

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Given the following 2.00 x 104

• The first part is called the coefficient (the
  2.00).
• The second is called the base (x 10) and exponent
  (4).
• Proper scientific notation requires the
  coefficient to be between 1 and 9. The base is
  always x10. If the exponent is positive, the
  number is greater than 1 and the decimal is moved
  to the right as many times as the exponent to
  convert to standard form.
• If the exponent is negative, the number is less
  than 1 and the decimal is moved to the left as
  many times as the exponent to convert to standard
  form.
• Use the EE key not the carot!

25
Record the following in Scientific Notation

• 685,003 kg
• 6.85 x 105 kg
• 407,501,000 sec
• 4.08 x 108 sec
• 0.00621 m
• 6.21 x 10-3 m
• 0.00000000697 N
• 6.97 x 10-9N

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Record the following in Standard Form

• 4.35 x 106 m
• 4,350,000 m
• 2.19 x 103 N
• 2,190 N
• 2.19 x 10-3 kg
• 0.00219 kg
• 4.57 x 10-6 s
• 0.00000457 s

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Metric Mania

• Using metric makes math easy!

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Which is larger?

1. 1 millimeter
2. 1 centimeter

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How many meters in a kilometer?

1. 10 or 101
2. 100 or 102
3. 1000 or 103

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How many grams in a milligram?

1. .10 or 10-1
2. .01 or 10-2
3. .001 or 10-3

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How many centimeters in a meter?

1. 10 or 101
2. 100 or 102
3. 1000 or 103

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Whats bigger an inch or a centimeter?

1. inch
2. centimeter

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What units would be used to measure the distance
from here to Dallas?

1. cm
2. mm
3. km
4. m

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In Physics these are the most prevalent units of
length used

• cm, mm, km or m

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KHD___dcm

• GXXMXXKHD___dcmXXµXXn

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Prefixes
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Metric Mania WS optional

• Look at the ladder
• If you are going down the ladder you add places
  (ie move the decimal right)
• If you are going up the ladder you subtract
  places (ie move the decimal left)

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8/26

• Get your calculator.
• Pick up 3 pages at the front desk.
• On your Warm Up Sheet (Record Date in first
  section)
• Write 12/x 24 and solve for X

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How may seconds are there in the month of August?

• PROVE IT!!!!!

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Dimensional Analysis

• Used to convert between different units of
  measurement
• This is done by multiplying by factors of 1

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The real meaning of MPH- The Original-
TCHappenings - YouTube
42
Converting up on down the metric system using
dimensional analysis

• What do you have?
• What do you want?
• Is your answer going to be larger or smaller than
  the starting number?
• What do you know?
• Remember you must be able to cancel out all units
  except the one you want to end up with

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Step 1

• Write down the number and unit that you are
  starting with

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Step 2

• Find out how to arrive at your final unit by
  using known conversion factors

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Step 3

• Set up your conversion factor so that the units
  cancel

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Example

• Convert 5 m into km

Step 1 you start with 5 m
Step 2 you need to get to km
Step 3 you know that 1km 1000 m
Step 4 5 m X 1km
1000 m
0.005m
Always multiply every number across the top
,then multiply every number across the bottom.
Finally divide the product of the top by the
product of the bottom. Record number and unit.
47
Convert 3 years to hours

3 years
1
48
Convert 3 years to hours

3 years 365 days 24 hours
1 1 year 1 day
49
Convert 3 years to hours

3 years 365 days 24 hours
1 1 year 1 day
26280 hours
50

• For the next example
• 1 km 0.621 mile
• 1 hr 3600 s

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8/27

• Get your calculator.
• Yesterday you received Warm Up Sheet, DA WS,
  Conversion Chart. If you were absent go to mail
  box and find them under the Pink Sign
• NOW Warm Up 2 (Record Date in 2nd section)
• Convert 4.25 x 104 nm to km using DA Format
  (1 m 1 x 109nm)

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Reminders

• Quiz Next Tuesday (Safety DA)
• Test next Wednesday (Safety DA)
• Have you got on Remind?
• Enter this number 81010
• text _at_18ca09
• Tutoring
• AP Student Help Sign Up
• Did we finish 75 mph question?

53

• 1. 3.15 x 107 sec
• 2. 18 weeks
• 3. 1.7 x10-3km
• 4. 8.40 x 10-5kg
• 5. 26.53 m

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Convert 75 mph to m/s.


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Convert 75 mph to m/s.
75 mi
hr
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Convert 75 mph to m/s.
75 mi 1 km 1000 m 1 hr
hr 0.621 mi 1 km 3600 s
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Convert 75 mph to m/s.
75 mi 1 km 1000 m 1 hr
hr 0.621 mi 1 km 3600 s
33.55 m/s
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Convert 42500nm to km
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Convert 42500 nm to kmI find it easier to go
nmgtmgtkm ?

4.25 x 104 nm
1
60
Convert 42500 mm to kmI find it easier to go
nmgtmgtkm ?

4.25 x 104 nm 1m
1 1 x 109 nm
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Convert 42500 mm to kmI find it easier to go
nmgtmgtkm ?

4.25 x 104 nm 1m 1km
1 1 x 109 nm 1000m
4.25 x 10-8 km
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EX A. A domino has dimensions of 0.5 cm x 2 cm
by 4 cm. The mass of the domino is 83 grams.
Determine the density in g/cm3 of the block.

• Soooo. You want an answer ending with grams on
  top and cm3 on the bottom
• Hint cm3 is a measurement of ? Can you
  determine this with the info given?

63
A domino has dimensions of 0.5 cm x 2 cm by 4 cm.
The mass of the domino is 83 grams. Determine the
density in g/cm3 of the block.

83 g
(.5 cm x 2cm x 4 cm)
ANS 20.75 g/cm3
64
EX B Teagan ran a 10 km race in 48 minutes.
What was her speed in miles/hr?

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Teagan ran a 10 km race in 48 minutes. What was
her speed in miles/hr?

10 km
48 min
66
Teagan ran a 10 km race in 48 minutes. What was
her speed in miles/hr?

10 km 0.621 mile 60 min
48 min 1 km 1 hr
ANS 7.76 miles/hr
67
Ex C Hunter puts his cruise on 63 mph. How far
in km does he travel in 3.5 hours?

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Hunter puts his cruise on 63 mph. How far in km
does he travel in 3.5 hours?

3.5 hrs
1
69
Hunter puts his cruise on 63 mph. How far in km
does he travel in 3.5 hours?

3.5 hrs 63 miles 1km
1 1 hr 0.621mi
ANS 355.07 km
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8/28 Its Friday, Its Friday!

• Get a calculator
• Pick up all 3 pages at front
• The short dim analysis ws is what we are working
  on today
• The long dim analysis ws is your review for next
  Thursdays test. There will also be safety
  questions on the test.
• NOW If you have 6,230 cm, how many
• Km?
• mm?
• Dm?

71
Be Safe, Be Sensible
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DIMENSIONAL ANALYSIS AND SAFETY TEST