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Do Now: Chapter 11 Vocabulary Today: Exploring Distance vs. Displacement

Do Now: Chapter 11 Vocabulary Today: Exploring Distance vs. Displacement

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## Do Now: Chapter 11 Vocabulary Today: Exploring Distance vs. Displacement

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**Monday 5/5/14**• Do Now: • Chapter 11 Vocabulary • Today: • Exploring Distance vs. Displacement • Distance vs. Displacement Questions • Video Field Trip – Chapter 11 • Homework: • Chapter 11.1 GRWS • New Unit • New Notebook • New Table of Contents Unit 3 Chapter 11 Day 1OBJECTIVE: Identify frames of reference and describe motion.Distinguish distance vs. displacement. Calculate displacement using vector addition**Tuesday 5/6/14**• Do Now: • Distance and Displacement review • Today: • Homework 11.1 GRWS - check and review • Calculating Average Speed • Speed Machines • Average Speed worksheet • Homework: • Chapter 11.2 GRWS Unit 3 Chapter 11 Day 2 OBJECTIVE: Interpret Distance Time Graphs.Calculate average speed.**Wednesday 5/7/14**• Do Now: • The Amazing Albert Maze • Today: • Homework 11.2 GRWS - check and review • Using Science Skills – graphs • Interpreting Distance Time Graphs • The Bus Stop • Speed Challenge Lab • Homework: • Finish Speed Challenge Lab Unit 3 Chapter 11 Day 3 OBJECTIVE: Interpret distance-time graphs. Investigate Average Speed**Thursday 5/8/14**(Substitute) Unit 3 Chapter 11 Day 4 OBJECTIVE: Discuss and investigate Acceleration. • Do Now: • Word Wise Chap 11 • Today: • Acceleration packet • Homework: • Chapter 11.3 GRWS**Friday 5/9/14**Unit 3 Chapter 11 Day 5 OBJECTIVE: Interpret speed and acceleration graphs. Investigate Average Speed, Velocity and Acceleration. • Do Now: • R & R Motion • Turn in: Speed Challenge Lab • Today: • Homework 11.3 GRWS - check and review • Acceleration packet and problems • Velocity and Acceleration Graphs • Homework: • Missing Assignments? Check Power School!**Monday 5/12/14**Unit 3 Chapter 11 Day 6 OBJECTIVE: Interpret speed and acceleration graphs. Investigate Average Speed, Velocity and Acceleration. • Do Now: • Speed and Motion Word search • Today: • Chapter 11 Notes - Motion • CSI: Bullets a Flyin’ • Study Guide and Problems • Homework: • Complete Study Guide and Problems**Tuesday 5/13/14**Unit 3 Chapter 11 Day 7 OBJECTIVE: Interpret speed and acceleration graphs. Investigate Average Speed, Velocity and Acceleration. • Do Now: • Formula Challenge • Today: • Review and Check -Study Guide + Problems • 20 Questions Review game • Physics Project Information • Homework: • Study for Chap 11 Quiz**Wednesday 5/14/14**Unit 3 Chapter 11 Day 8 OBJECTIVE: Demonstrate knowledge of Frame of Reference, Distance vsDisplacement, Average Speed, Velocity and Acceleration. • Do Now: • Do Now folder – 7 pages • Clear your desks. Get a calculator. • Today: • Chapter 11 Quiz • Notebook – 18 pages • Project Vocabulary – Forces and Motion • Homework: • FINISH PROJECT VOCABULARY**Calculating Average Speed**Section 11.2**a. speed (or direction) b. direction (or speed)**c. m/s2 Section 11.3**Measuring Acceleration**Section 11.3**Distance-Time Graphs for Motion of Three Cars**Section 11.2**Speed-Time Graphs**Figures 16 and 17**Chapter Summary**PHYSICS UNITChapter 11 - Motion**Frame of Reference**• A frame of reference is necessary to describe motion accurately • FoR is a system of objects not moving with respect to one another • Relative motion describes movement from different FoRs • Ex: Looking at someone sitting next to you in a car vs. someone standing on the street corner watching the car vs. the billboard across the street**Distance vs Displacement**• Distance is the total length of the path between two points • Displacement is a vector describing the ending point compared to the starting point. It includes: • The direction from starting point • The length of a straight line from the starting point to the ending point • The SI unit for length is the meter (m)**Solve…**• A caterpillar travels 5 m east, 2 m north, 7 meters west, and 3 m south. a. What is the caterpillar’s total distance? b. What is the caterpillar’s displacement? 2. A science textbook is moved once around the perimeter of a table that is 1m by 2m and ends up in its initial position. a. What is the books total distance? b. What is the book’s displacement?**Average Speed**• Speed is the change in distance divided by the change in time V= D T • Variations of the formula T= D and D=V x T V • Units of SPEED and VELOCITY are m/s • The SI unit for time is second (s) • Instantaneous Speed is how fast a speed is changing at a specific instant (speedometer)**Velocity**• Velocity is a vector. • To describe a vector you must have both a magnitude (some kind of number) and a direction Ex : 5 m south, 10 km left, 2 inches forward • Circular paths experience a continuous change in velocity because the direction is constantly changing**Velocity**• Combine velocities by vector addition • If both are in the same directionADD • If they are in different directionsSUBTRACT**Solve…**Headwind • Tailwind**Solve…**• A runner completes a 10.0 km race in exactly 30 minutes. • What is the runner’s average speed in km/min? • What is the runner’s average speed in km/hr? • When the outdoor emergency warning siren at Cheryl’s school was tested, the sound from the siren took 7 s to reach her house located 2.4 km from the school. What is the speed of the sound of the siren in m/s?**Graphs**• Distance Time graphs show speed (m/s) and are linear graphs. • The slope of the line (rise/run) is the speed • A Speed Time graph shows acceleration (m/s2) • Nonlinear (curved) graphs show changing acceleration**Graphs**Section 11.2**Acceleration**• Acceleration is ANY change in speed or direction (any change in velocity) • Acceleration can be positive (speeding up) • Or negative (slowing down) • Or a result of changing direction (turning) • Instantaneous Acceleration is how fast a velocity is changing at a specific instant**Acceleration**• Acceleration is the change in velocity divided by the change in time a = (Vf – Vi) T • Units of Acceleration are m/s2 • Acceleration of Gravity (Free Fall) is 9.8 m/s2**Solve…**• An elevator is moving upward with a speed of 11 m/s. Three seconds later, the elevator is still moving upward but its speed has been reduced to 5 m/s. What is the elevator’s acceleration? • A plane starts to take off from a runway at 70 km/hr. It take the plane 30 seconds to get to that speed. What is the plane’s acceleration?**Quick Chapter 11 Quiz Problem Review…SHOW ALL YOUR WORK**and INCLUDE THE CORRECT UNITS 1. Distance and DisplacementAn ambitious girl scout planned her cookie selling route: from her home she walked 5 blocks east, 2 blocks north, 7 blocks west, 3 blocks south, 3 blocks east and 1 block north. a. What is the Girl Scout’s total distance? b. What is the Girl Scout’s displacement from her home?**Quick Chapter 11 Quiz Problem Review…SHOW ALL YOUR WORK**and INCLUDE THE CORRECT UNITS 2. Average Speed What is the average speed of a helicopter that flies 50 km in 20 minutes and then 30 km in 10 minutes? 3. Acceleration An elevator is moving upward with a speed of 16m/s. Four seconds later, the elevator stops on the sixteenth floor. What was the elevator’s acceleration?**Chapter 11 Formulas**• Average Speed V = DD = T * V T = D T V • Acceleration A = (Vf – Vi) T = (Vf-Vi) T A Show your work! Include units!