1. Construction Challenge Electromagnets That Get the Job Done

2. How the # Number of Wraps effects an electromagnet # of WrapsTrial 1Trial 2Trial 3AverageObservations 16 24 32

3. Look at an electromagnet at work http://www.youtube.com/watch?v=6yhNOX QkMpY

4. Background Information A local recycling center wants you to develop an electromagnet that will help them at their recycling plant. Your electromagnet needs to hold at least 50 metal scraps, AKA, washers and place them into the “dump truck”.

5. Prior Knowledge You met with a team of engineers and discussed variable changes for electromagnets. Use any and all ideas to create an electromagnet that will meet the challenge.

6. Team Preparation Choose team roles: –Leader: Make sure each team member contributes ideas; Communicates with the foreman –Materials Manager: Gets supplies; don’t be afraid to ask for help –Recorder: Keep track of plan and data; prepare to share with teammates; –Reporter: Shares findings with classmates

7. Follow this Design Process Identify Problem Brainstorm Design Build Redesign Test and Evaluate Share Solution

8. Time Management You have 3 days to accomplish this task A Wisdom Walk will be held during the last 15 minutes of class on Thursday for each team to share their design.

9. What I Learned From Others: TeamMaterials used Period 4Observations# W 17 batteries, 150cm red wire, 22 wraps, 4 c bolts A few/a lot fell off. Dumped washers 39w 26 batteries, 80cm black wire, 26 wrapsRubbed with magnet, many fell in lift 17w 34 batteries, 3 nails, 50 wraps, 5 feet black wire. many fell off during lift. 31 w 45 batteries, 2 c bolts, 150cm black wire, 27 wraps. A lot fell off the bolts. Few washers 8 w 54 c bolts, 150cm red wire, 8 batteries 5 new energizer, 30 wraps. Few fell off during lift not many 84w 65 batteries, longer bolt, 134cm red wire, 48 wraps A lot fell off.35w

10. What I Learned From Others: TeamMaterials used Period 5Observations# W 18 batteries long bolt 145 cm black wire 50 wraps Couple fell off34 26 batteries 200cm white wire 60 wraps 2 bolts Problem with lift off 35 36 batteries white wire 200cm 53 wraps thick bolt smooth63 4100cm red E wire 60 wraps long bolt 9 batteries Some fell off good teamwork 15 54 batteries 150cm red wire long bolt 34 wraps Tried many times 1 63 batteries 300cm of white wires 81 wraps 1 bolt 54

11. What I Learned From Others: TeamMaterials used Period 3Observations# W 110 batteries, 55 wraps, 80cm black w.Few dropped64 24 batteries, red wire 1yd 18”, 35 wrapsBunch fell off35 310 batteries, 2 red E 80cm wires, 1 bolt had 55w, one had 30w Disconnected in lift 2 450 wraps, 2 batteries, thin red E wire 80cm Half fell in lift10 510 batteries,2 bolts,140 cm. black w.2 dropped30 610 batteries, 1yd black wire, 25 wraps, 2 control bolts Most fell off in lift 3

12. What I Learned From Others: TeamMaterials used Period 8Observations# W 17 batteries 26 wraps 150cm. Control wire 21w 24 batteries fat bolt 5 coil wire 32 wraps Control wire 35w 33 batteries 2 bolts control wire 30 wraps35w 45 batteries, 80 cm. black wire, 19 wraps, 2 long bolts 1w 52 batteries 1 thick bolt 29 wraps control wire 35w 65 batteries 2 control bolts 30 wraps 46” white wire 26w

13. Your Each team member will be responsible to summarize their team’s project following criteria sheet Report due on Monday, November 17 th