1. 1. A hot air balloon carries 200 lbs cargo, 150 lbs human, and 200 lbs materials up a distance of 2,000 feet. How much work did the balloon do (keep all units)? December 4, 2009 DRILL U3d-L3 2.A physical therapy doctor told his 150-lb patient to do 30,000 ft-lbs of work each day to rehabilitate his leg. The patient decides to climb a hill to perform this work. How high does the patient need to climb in order to meet his goal? 1. F x d = W 550 lbs x 2,000 ft = W = 1,100,000 ft-lbs. 2. F x d = W 150 lbs x d = 30,000 ft-lbs. 150 lbs. d = 200 ft.

2. With a partner, you must create two solutions to each of the following problems. Then, identify common mechanical devices that exhibit characteristics similar to either of the mechanisms you have created. U3d-L3

3. U3c-L4 Your job is to use the Engineering Design Process to design a robot that would help you with some task in your life. Examples? CORE TECHNOLOGIES CLASSWORK

4. Introducing the NEW iRobot ® Roomba ® Vacuum Cleaning Robots! A better way to maintain cleaner floors every day! Meet the new Roomba! The newest iRobot Roombas feature dramatically improved vacuum pickup, brush design, debris and particle filtering, advanced cleaning coverage and navigation plus innovative new scheduling capabilities. U3c-L4

5. CORE TECHNOLOGIES CLASSWORK Improved cleaning performance Improved navigation Easier to use, maintain and upgrade Voice demonstration Virtual Wall ® Lighthouse™ Amazing pickup Larger filter Won't get stuck Lower maintenance Safe and gentle navigation On-board Scheduling Wireless Command Center Powerful suction and rotating brushes Automatically navigates for best cleaning coverage Cleans under and around furniture, into corners and along wall edges Self-adjusts from carpets to hard floors and back again Automatically avoids stairs, drop-offs and off-limit areas Simple to use— just press the Clean button and Roomba does the rest U3c-L4

6. PROCESS: This is an individual assignment. Go through the design process steps listed on the back of the article. Complete all steps in your notebook. CORE TECHNOLOGIES CLASSWORK LETTER USE COMPLETE SENTENCES SKETCHES MUST CLEARLY COMMUNICATE SOLUTION and BE ORTHOGRAPHIC PROJECTIONS

7. U3c-L4 HOMEWORK Complete steps 1-7 of the design process for your robot design. DO YOUR BEST WORK.

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17. Machines are artifacts that transmit or change the application of power, force, or motion. What is an artifact? –something created by humans usually for a practical purpose. Machines can be simple or complex –Complex machines are comprised of…. Simple Machines