finish pendulum whiteboards proper lab notebooks proper graphing independent/dependent variables...
TRANSCRIPT
MONDAY AUGUST 25TH
• Finish Pendulum Whiteboards
• Proper Lab Notebooks
• Proper Graphing
• Independent/Dependent Variables
• Quiz Review
• Overall the goal is to have someone unfamiliar to the experiment understand from your lab notebook
• Neat and organized• Titles and labels
• Time, Length, Distance…• Units
• Time (min), Distance (meters)….• Proper graphs• Observations• Conclusion
GOOD QUALITIES IN A LAB NOTEBOOK
Graphing
the independent variable is the one over which the experimenter has complete control
the dependent variable is the one that responds to changes in the independent variable
Titles, Labels, and units Connecting the dots… good idea or bad
idea?
Quiz Review
Ask any question you my have as well as working these practice problems
Cos(x)= Solve for x
Y=mx+b Solve for m
TUESDAY AUGUST 26TH• Next Time Question
• Format of Lab Notebooks
• Graphing
• Independent/Dependent Variables
• Unit 0 Worksheet #2
• Overall the goal is to have someone unfamiliar to the experiment understand from your lab notebook
• Neat and organized• Titles and labels
• Time, Length, Distance…• Units
• Time (min), Distance (meters)….• Proper graphs• Observations• Conclusion
GOOD QUALITIES IN A LAB NOTEBOOK
Types of Variables
A football player kicks a ball that goes a certain distance.
What is the independent variable?
What is the dependent variable?
the independent variable is the one over which the experimenter has complete control
the dependent variable is the one that responds to changes in the independent variable
Graphs
Titles, Labels, and units
8-10 Data points, Factor of 10 for data Why?
Connecting the dots… good idea or bad idea?
Worksheet #2
Using what we just learned I want the 7 data sets graphed into your lab notebooks
Work individually and pull out your homework for collection.
The graphs will be line graphs
Wednesday August 27th
Next time question (from yesterday)
Mathematical Model
Data Studio Introduction
Linearization!!!!!
Mathematical Model What is the
independent variable?
What is the dependent variable?
What formula describes this graph?
Conceptually what does the graph represent?
UNITS are key
Thursday August 28th
Mathematical Model Review
Linearizing Parabola Hyperbola
Data Studio/WS #2
Closing
Mathematical Model What is the
independent variable?
What is the dependent variable?
What formula describes this graph?
Conceptually what does the graph represent?
UNITS are key
Linearize
Linear graphs are
Linearizing is the changing a graph into a linear graph.
Why would we need this?
Linearize a parabola like aMath Magician and…
BAM!
Hyperbola
Closing remarks
What you didn’t finish is homework
Quiz Tomorrow
Tuesday September 2nd
Mathematical Model Review
Linearizing Parabola Hyperbola
Data Studio/WS #2
Closing
Mathematical Model What is the
independent variable?
What is the dependent variable?
What formula describes this graph?
Conceptually what does the graph represent?
UNITS are key
Linearize
Linear graphs are
Linearizing is the changing a graph into a linear graph.
Why would we need this?
Linearize a parabola like aMath Magician and…
BAM!
Hyperbola
Closing remarks
What you didn’t finish is homework
Quiz Tomorrow
Wednesday September 3rd
Global problem
White boarding Linear Graphs
Choice Lab or Review
Closing
Global Issue
Hostess is running low on supplies for making twinkies.
Months Twinkies Consumed
0 0
0.5 12
1.0 15.5
1.5 19.4
2 22.7
2.5 24.4 0 0.5 1 1.5 2 2.5 30
5
10
15
20
25
30
Series1
Time (months)
Tw
inkie
s (
Consum
ed)
Whiteboarding
Work in groups at the lab stations I will assign a random problem to each group
to show. You will have 5-7 mins to show the original graph, linearized graph, and along with the math model including units
I will pick one group member to present so make sure every understands what was done in the lab.
This is the HW grade for the worksheet and it’s a group grade. Everyone is responsible for knowing their groups info.
Lab
What We Know
Angle has no effect on the period Mass has no effect Length has the only effect
Good data practices? Timing Averages
Lab Part 2
Collect 8-10 data points
String length versus period
Goal to have a mathematical model
Closing
Tomorrow we will review
I will have a worksheet with an answer key to work on for most of the period
I will answer your questions
You have your make-up quiz Friday
Thursday August 4th
Quiz Review
Conversion Review
Worksheet/Questions
Quizzes
USING THE CONVERSION FACTOR
Objective: Make unit conversions
Fill in the Missing Numbers
1 foot = _____ inches
1 meter = _____ centimeters
1 pound = _______ ounces
1 minute = ______ seconds
1 hour = ________ minutes
1 day = __________ seconds
12
100
16
60
60
86,400
Unit conversion factor
A unit conversion factor is a fraction whose numerator and denominator are equivalent measures. Some common unit conversion factors are given below. You can also use the reciprocal of these.
Choose a unit conversion factor that…
Introduces the unit you want in the answer
Cancels out the original unit so that the one you want is all that is left.
“Canceling” out Words
inches feet
feet miles
seconds hours
minutes seconds
inches
miles
hours
minutes
Convert 8 yards to feet…
Make a decision: What conversion factor will you use?
3 ft 1 yd or
1 yd 3 ft
Set up the problem: Multiply the measurement by the conversion factor.
ft yd
1 yd
38
Solve the problem: Perform the multiplication
ft yd ft ft yd ft
1 yd 1 yd
3 8 3 248 24
1 1
8 yards
1
A bucket holds 16 quarts. How many gallons of water will fill the bucket? Use a unit conversion factor to convert the units.
What are the two conversion factors comparing quarts and gallons?
4 qt
1 gal
1 gal
4 qt
Which one will “cancel” quarts?
16 qt 16 gal 4 gal
4
You Try it!One bag of apples weighs 64 ounces. How many pounds does it weigh?
1 lb 64 1 lb64 oz = 4 lb
16 oz 16
Darren drank 2 liters of water. How many milliliters of water did he drink?
1000 mL 2 1000 mL2 L = 2000 mL
1 L 1 L
MAKING RATE CONVERSIONS
Use a unit conversion to convert the units within each
rate
Convert 80 miles per hour to feet per hour.
80 mi
1 hr
5,280 ft
1 mi
80 5280 ft
1 hr
422,400 ft
1 hr
Convert 63,360 feet per hour to miles per hour.
63,360 ft
1 hr
1 mi
5280 ft 63,360 ft 1 mi
1 hr 5280 ft
12 mi
1 hr
You Try it!Convert 32 feet per second to inches per second.
32 ft 12 in 32 ft 12 in 384 ft =
1 s 1 ft 1 s 1 ft 1 s
A craft store charges $1.75 per foot for lace. How much per yard is this?
$1.75 3 ft $1.75 3 ft $5.25 =
1 ft 1 yd 1 ft 1 yd 1 yd
Word Problems
The average American eats 23 pounds of pizza per year. Find the number of ounces the average American eats per year.
23 lb 16 oz 23 16 368 oz
1 yr 1 lb 1 1 yr
The average American eats 368 ounces of pizza per year.
Word Problems…A car traveled 60 miles on a road in 2 hours. How many feet per second was the car traveling? Hint: Set up the words first.
mi
hr
ft
mi
hr
s
How many seconds in an
hour?60 s 60 min 3600 s
1 min 1hr 1 hr
1 hr
3600 s
60 mi
2 hr
5,280 ft
1 mi
60 5,280
2 3600
44 ft
1 s
The car traveled 44 feet per second.
Review
Fill out the worksheet
Ask any questions Can be on anything
Monday September 8th
Next time question
Stairwell Lab
Exams Back
Closing
Stairwell
If you need time to finish gathering data or making a math model spend the next 10 mins
Also work on the summary if you have time We will be measuring the period of a 3
story pendulum using only our math model and the time we measure
This is the only chance and I will be conducting 3 trials
Bring a stop watch (one per each group)
Exam
Each section was worth 8 points
Showing correct work gets you some points
Ask me any questions you have on the quiz either during or after going over it.
Exams Back
Closing
A lab summary is due Wednesday
Test on Friday
Test review will be handed out tomorrow
Tuesday September 9th
Buggy Notes
Buggy Lab
Closing
Buggy Notes
Describe the motion of the car What can you measure? How can you measure?
What is distance? What doesn’t it tell you Teleporting teacher
References position N,S,E,W, Positive and negative
Lab
Work in new groups Collect data for the entire time given Be as accurate as possible As a group decide on what starting
position is and choose a direction to be positive or negative.
Work on using Time and Distance I will not be answering questions
Closing
Test Friday
Lab summary due tomorrow Along with graphing todays data into the lab
notebook
Test review due Thursday
Thursday September 11th
Lab Summaries
Orb Graph
Test Review
The length of the string is…
The actual length of the string suspended in the lab was 8.809 meters.
You will now calculate your percent error as it relates to this lab.
To calculate percent error: http://www.wikihow.com/Calculate-Percentage-Error
Make sure your prediction is in meters. If it is not, use one or more of the following conversions:
1 inch = 2.54 centimeters; 1 meter = 3.28 feet
Groot & Peter Quill in An orb throwdown
Groot begins 10 meters ahead of Peter Quill as they both move in a straight linear fashion towards an orb (that possesses the Infinity Stone).
Groot moves 0.5 meters each second. Peter Quill moves at 1.0 meters each
second in the same direction. When will Peter Quill catch up to Groot?
Show graphically!!!
Valid Graph #1
SCENARIO 1: Groot is at position 10 meters; Peter Quill is at position 0 meters.Time Groot Peter Quill
0 10 01 10.5 12 11 23 11.5 34 12 45 12.5 56 13 67 13.5 78 14 89 14.5 9
10 15 1011 15.5 1112 16 1213 16.5 1314 17 1415 17.5 1516 18 1617 18.5 1718 19 1819 19.5 1920 20 20
0 5 10 15 20 250
5
10
15
20
25
Position (m) vs. Time (s)
GrootPeter Quill
Time (seconds)
Position (m)
Y(m) = 0.5x + 10(m)Y(m) = 1x
Valid graph #2
SCENARIO 2: Groot is at position 0 meters; Peter Quill is at position -10 meters.Time Groot Peter Quill
0 0 -101 0.5 -92 1 -83 1.5 -74 2 -65 2.5 -56 3 -47 3.5 -38 4 -29 4.5 -1
10 5 011 5.5 112 6 213 6.5 314 7 415 7.5 516 8 617 8.5 718 9 819 9.5 920 10 10
0 5 10 15 20 25
-15
-10
-5
0
5
10
15
Position (m) vs. Time (s)
GrootPeter Quill
Time (seconds)
Position (m)
Y(m) = 0.5x
Y(m) = 1x – 10(m)
Exam Review Answer key
Exam review answer key (cont.)
Closing
Test Tomorrow
Lab Improvement Paper Due Monday
Monday September 15th
Next time question Position vs Time graph
Axis Slope
Velocity vs. Time Unit 1 worksheet 1
Work in groups
What is not finished is homework.
Next Time Question
http://www.arborsci.com/NTQ/NTQ_SLM_5QA.pdf
Wednesday September 17th
Displacement
Motion Maps
Worksheet
Quiz Friday
What is Displacement?
How is it different than Position and Distance?
What Information does Displacement give?
Displacement
The change in position is the displacement. It can be both positive and negative like position.
Calculate how far car has travelled when it travels at a constant velocity of 5 m/s for 20 seconds
Displacement
10 meters
Now this can be calculated many different ways using velocity and time. All of you have calculated it algebraically.
How can you graphically come up with the answer?
Displacement
Graphically
20 seconds
5 m/s
The area under the curve on a velocity vs. time graph gives you the displacement
Check the units
Extra examples (board)
Area
Think of them as tiny snap shots of time Each dot represents an even increment of
time The arrow represent a velocity
Motion Maps
Consider the interpretation of the motion map below. At time t = 0, cyclist A starts moving to the right at constant velocity, at some position to the right of the origin. Cyclist B starts at the origin and travels to the right at a constant, though greater velocity. At what time does cyclist B overtake A?
Draw a motion map of a person walking at 5m/s for 10 seconds
Draw a motion map of a man walking -5 m/s for 10 seconds
Draw a motion map of a man walking 5 m/s for 5 seconds, remaining idle for 1 second, and then travelling -5 m/s for 5 seconds
Group work
Thursday September 18th
Opener
Recap Displacement Motion Maps
Worksheet
Quiz tomorrow
A Roller Bladder skates at 40 m/s west for a minute. She then stops and takes off her skates in 10 seconds. She then decides to walk to the gas station east at 2 m/s in 2 mins. Finally she gives up from exhaustion and sleeps on the sidewalk
What is her average velocity? What is her average speed? What is her displacement? Draw a motion map
Which is which
What is Displacement?
How is it different than Position and Distance?
What Information does Displacement give?
Displacement Recap
The change in position is the displacement. It can be both positive and negative like position.
Calculate how far car has travelled when it travels at a constant velocity of 5 m/s for 20 seconds
Displacement
10 meters
Now this can be calculated many different ways using velocity and time. All of you have calculated it algebraically.
How can you graphically come up with the answer?
Displacement
Graphically
20 seconds
5 m/s
The area under the curve on a velocity vs. time graph gives you the displacement
Check the units
Extra examples (board)
Area
Think of them as tiny snap shots of time Each dot represents an even increment of
time The arrow represent a velocity
Motion Maps
Consider the interpretation of the motion map below. At time t = 0, cyclist A starts moving to the right at constant velocity, at some position to the right of the origin. Cyclist B starts at the origin and travels to the right at a constant, though greater velocity. At what time does cyclist B overtake A?
Worksheet/Homework due today
Rest of the period to ask for help and work together
Before you may leave I must see your worksheet to give you a grade
Quiz tomorrow don’t forget