Bell Starter (Day 6 T 9/7 / W9/8) Turn in WB 8—”Force Practice” IN: ON NOTE CARD (name on back): copy and answer (use GUESS): copy and answer (use GUESS): “If the mass of the crate is 50 kg with a pulling force of 300 N, what is the acceleration of the crate?” Will be returned and pasted in IN section

Today’s Agenda PLAN PLAN Go over IN Go over IN Laboratory & Graphing Skills Laboratory & Graphing Skills Bell Starter: Newton’s 2 nd Law (GUESS) Bell Starter: Newton’s 2 nd Law (GUESS) Laboratory & Graphing Skills (SO 3 &4) Laboratory & Graphing Skills (SO 3 &4) Review Lab Data: “Determining the Relationship Between Force, Mass, and Acceleration” Review Lab Data: “Determining the Relationship Between Force, Mass, and Acceleration” Complete Lab Analysis Complete Lab Analysis Work Time: Complete all Unit 1 Assignments Work Time: Complete all Unit 1 Assignments

Welcome Back Please remember to turn off your cell phones and other electronic devices Please remember to turn off your cell phones and other electronic devices Cares, Concerns & Celebrations Cares, Concerns & Celebrations RAPTOR VICTORIES

Due Dates Thursday 9/9/10 or Friday 9/10/10 : Thursday 9/9/10 or Friday 9/10/10 : Unit 1 Assignments (HAUS completed) Unit 1 Assignments (HAUS completed) Monday 9/13/10 or Tuesday 9/14/10: Monday 9/13/10 or Tuesday 9/14/10: Composition Notebook (graded per rubric) Composition Notebook (graded per rubric) Unit 1 Exam (short answer and multiple choice) Unit 1 Exam (short answer and multiple choice)

PLAN Test 25 minutes, 30 questions 25 minutes, 30 questions Will be recorded, in PowerSchool Will be recorded, in PowerSchool Results will be used to assess class placement and curriculum objectives Results will be used to assess class placement and curriculum objectives Won’t count towards final grade Won’t count towards final grade Absolutely try your VERY BEST! Absolutely try your VERY BEST!

Review Bell Starter NOTE CARD: IN Answer a = 6 m/s 2

Force Practice (10 pts) 1. 3,200 N kg m/s N N kg m/s m/s m/s ,000 kg ,000 kg ,625 N ,564,000 N

SO 3* Lab Report Format List & organize information into proper lab components. (Leave space!) 1. Purpose 2. Hypothesis 3. Materials 4. Procedure 5. Observations 6. Data/calculations 7. Data/calculations analysis 8. Conclusions

SO 3* Lab Report Format Explain the type of information found in each lab report format component: 1. Purpose 2. Hypothesis 3. Materials 4. Procedure 5. Observations 6. Data/calculations 7. Data/calculations analysis 8. Conclusions

SO 4 Graphing Skills Apply scientific components to a graph. Title* Title* Orientation (x & y)* Orientation (x & y)* Author* Author* Date* Date* Legend/Key Legend/Key Scale Scale

Line Graph Best for showing data that changes--anything over time Best for showing data that changes--anything over time Must have descriptive title at the top Must have descriptive title at the top Label axes with description and units Label axes with description and units

Line Graph

Rules on How to Make a Line Graph Credit Ron Thompson, author of Biology: As Scientific Inquiry **Paste in graphing rules When placing the horizontal (x-axis) and vertical (y-axis) axis on a piece of graph paper, be sure to leave some space below the horizontal axis and to the left of the vertical axis. When placing the horizontal (x-axis) and vertical (y-axis) axis on a piece of graph paper, be sure to leave some space below the horizontal axis and to the left of the vertical axis.

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Rules on How to Make a Graph Credit Ron Thompson, author of Biology: As Scientific Inquiry Always attempt to make your graph fill the entire piece of graph paper. Always attempt to make your graph fill the entire piece of graph paper.

Rules on How to Make a Graph Credit Ron Thompson, author of Biology: As Scientific Inquiry Both axes must be labeled to indicate what the numbers on each axis represent. When time is involved, it goes on the x- axis. Both axes must be labeled to indicate what the numbers on each axis represent. When time is involved, it goes on the x- axis. Independent Variable on x-axis Independent Variable on x-axis Dependent Variable on y-axis Dependent Variable on y-axis

Time (seconds) Distance (meters)

Rules on How to Make a Graph Credit Ron Thompson, author of Biology: As Scientific Inquiry Each space on an axis must represent an equal change in numbers. Each space on an axis must represent an equal change in numbers. To set a scale: To set a scale: Find the range by subtracting the largest number by the smallest number Find the range by subtracting the largest number by the smallest number Divide the range by the number of spaces on your axis Divide the range by the number of spaces on your axis Take your answer and round to the next highest whole number Take your answer and round to the next highest whole number Each space on your axis should go up by that amount Each space on your axis should go up by that amount

Time (seconds)Distance (meters)

TimeDistance Range: ? Range: ? # of spaces: 25 # of spaces: 25 Range: ? Range: ? # of spaces: 30 # of spaces: 30

TimeDistance Range: 175 Range: 175 # of spaces: 25 # of spaces: /25= 7 175/25= 7 Range: 150 Range: 150 # of spaces: 30 # of spaces: /30= 5 150/30= 5

Time (seconds) Distance (meters)

Rules on How to Make a Graph Credit Ron Thompson, author of Biology: As Scientific Inquiry Do not crowd numbers on an axis. This makes them hard to read. It’s not desirable to have a number on every line. Do not crowd numbers on an axis. This makes them hard to read. It’s not desirable to have a number on every line. Often, numbering by 5’s, 10’s or 100’s produces the neatest and easiest to read graph. Often, numbering by 5’s, 10’s or 100’s produces the neatest and easiest to read graph.

Time (seconds) Distance (meters)

Rules on How to Make a Graph Credit Ron Thompson, author of Biology: As Scientific Inquiry Place each dot, which is defined by 2 numbers, in its appropriate place on the graph. Place each dot, which is defined by 2 numbers, in its appropriate place on the graph. Find x-axis data point Find x-axis data point Find y-axis data point Find y-axis data point Mark a dot Mark a dot

Rules on How to Make a Graph Credit Ron Thompson, author of Biology: As Scientific Inquiry If you are asked to draw a trend line or best-fit line, try putting a straight edge down to see if a line comes close to most of the points. If you are asked to draw a trend line or best-fit line, try putting a straight edge down to see if a line comes close to most of the points.

Rules on How to Make a Graph Credit Ron Thompson, author of Biology: As Scientific Inquiry Write a title that briefly describes the information graphed. Write a title that briefly describes the information graphed. Include IV and DV Include IV and DV What would a good title for your graph be? What would a good title for your graph be?

Rules on How to Make a Graph Credit Ron Thompson, author of Biology: As Scientific Inquiry Graphs can be used to make predictions by extending the graph- line and estimating the numbers. Graphs can be used to make predictions by extending the graph- line and estimating the numbers.

Graphing Notes Graphs should only start at (0,0) if that data point was collected, you must think about if it makes sense to start at zero. Graphs should only start at (0,0) if that data point was collected, you must think about if it makes sense to start at zero.

Graphing Analysis OUT: OUT: Complete the “Graphing Analysis” questions (light yellow small handout) and paste into CB.

Review Cart Lab Data Part A: Constant Force, Changing Mass Part A: Constant Force, Changing Mass Acceleration values? Acceleration values? Part B: Constant Mass, Changing Force Part B: Constant Mass, Changing Force Acceleration values? Acceleration values? Lab Analysis Lab Analysis Use Laboratory and Graphing Skills (SO 3-4) Use Laboratory and Graphing Skills (SO 3-4) Relationship to Newton’s Second Law Relationship to Newton’s Second Law

Prelab Pointers: Converting g to kg: 1000 g = 1 kg, or Converting g to kg: 1000 g = 1 kg, or 1 kg/1000 g, (ex. 20 g = 0.02 kg) Converting cm to m: 100 cm = 1 m, or 1 m/100 cm, (ex. 40 cm = 0.4 m) Converting cm to m: 100 cm = 1 m, or 1 m/100 cm, (ex. 40 cm = 0.4 m) Calculating acceleration of cart: a = 2d/t 2 Calculating acceleration of cart: a = 2d/t 2 Where d is distance and t is time Where d is distance and t is time Ex. a = 2 (0.4 m)/(2.7 s) 2 = 0.11 m/s 2 Ex. a = 2 (0.4 m)/(2.7 s) 2 = 0.11 m/s 2 Graph A: acceleration (y-axis) vs. mass (x axis) Graph A: acceleration (y-axis) vs. mass (x axis) Graph B: acceleration (y-axis) vs. force (x axis) Graph B: acceleration (y-axis) vs. force (x axis) Note: F = (m)(a) or F = (0.02 kg)(10 m/s 2 )=0.2 N; since gravitational acceleration is 9.8 m/s 2 = 10 m/s 2 Note: F = (m)(a) or F = (0.02 kg)(10 m/s 2 )=0.2 N; since gravitational acceleration is 9.8 m/s 2 = 10 m/s 2

Complete Lab Analysis Complete “Lab Analysis” Questions, including 2 graphs using graph paper (no sketches allowed). Complete “Lab Analysis” Questions, including 2 graphs using graph paper (no sketches allowed). Due at the end of the period. Due at the end of the period. Each student completes and turns in their own work. Each student completes and turns in their own work. When done, complete all Unit 1 Assignments (due next class period) When done, complete all Unit 1 Assignments (due next class period)

Complete Lab Analysis Graphs: Complete Graph A and Graph B per graphing skills (notes), no sketches allowed. Complete Graph A and Graph B per graphing skills (notes), no sketches allowed.Questions: Answer questions 1 and 2 (a through c) Answer questions 1 and 2 (a through c) Answer question 3 (remember a=F/m) Answer question 3 (remember a=F/m) Turn in when done Turn in when done

What’s Due Next Time? Cart Lab— Data & Analysis (graphs) Cart Lab— Data & Analysis (graphs) Complete EPS CB (will be collected for a grade) Complete EPS CB (will be collected for a grade) Complete all Unit 1 Assignments Complete all Unit 1 Assignments Study for Unit 1 Exam (come with questions for review session next class period) Study for Unit 1 Exam (come with questions for review session next class period) Bring all Unit 1 materials next class period for review session. Bring all Unit 1 materials next class period for review session.