ConstructionChallenge

Electromagnets That Get the Job Done

Look at an electromagnet at work

http://www.youtube.com/watch?v=6yhNOXQkMpY

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”.

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.

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

Follow this Design ProcessIdentify Problem

Brainstorm

Design

Build

Redesign Test and Evaluate

Share Solution

Time Management

• You have 3 days to accomplish this task• A Wisdom Walk will be held during the

last 15 minutes of class on Friday for each team to share their design.

What I Learned From Others:Team Materials used Observations # W1 2 b 2 bolts wrap with 80cm coil Very weak

attraction15 g

2 2 b 1 big bolt with 300 cm wire switch Only wrapped 42 wraps, more could have helped

7g

3 1 medium bolt wrapped around a chair leg with 300 cm of wire switch

Not working

4 2 b 2 bolts wrapped in 80 cm wrapped in middle of bolt

Great job! the washers looked like the letter u

85g

5 4 b used Mr. Danny’s desk handle and a switch

again washers like a letter u

48g

6 2 b 1 bolt wrapped with 1,213 cm wire Too much wire 19g

What I Learned From Others:Team Materials used Observations # W1 4b, 4bh, 1 300cmw 3 80cmw, 2 bolts 65g

2 4b, 4bh, 1s, 1sbolt, 30wraps, 80cmw, 2bolts

Circuit kept coming apart

3 4b, 4bh, 2 bolts, 380cmw Washers went into a U shape

40g

4 4b, 4bh, 2bolts, 80cmw No switch 20g

5 4b, 4bh, 2 big bolts, 300cmw, switch Wire is disconnecting

155g

6 2 rusty bolts, 4b, 4bh, 300cmw 43g

What I Learned From Others:Team Materials used Observations # W1 300 cm w wrapped on 2 bolts, 2b Not all of wire

wrapped on bolts

14 g

2 300 cm w around desk handle, 4b Washers held on side

40 g

3 300 cm w wrapped on 2 bolts, 2b, wire wrapped near center of bolts

Stronger when on for more time

33 g

4 80 cm w wrapped with no overlaps, 2b Even wrapping 33 g

5 80 cm w, 2 bolts, 2b 1 cm spacing between wraps

13 g

6 300 cm w wrapped on 2 bolts, switch, 2b

Overlapped wrapping

66 g

What I Learned From Others:Team Materials used Observations # W

1Lauren

2 batteries, 429cm wire, large bolt3 batteries, 300cm wire

No switchSemi-Circle 104g

2 Fyton, (how much wire?)cm Insulator 0g

3 4 batteries, bolt, 300cm wire Bolt wrapped on bottom

50g

4 4 batteries, 300cm wire, stapler, 36 wraps 2g

5Brando

Small screw, 80cm bare wire, Syrup, Water,

Batteries flippedLess washers in liquid

0g

6 3 batteries, thermometer, Mainly tested heat

Your

• Each team member will be responsible to summarize their team’s project following criteria sheet

• Report due on Tuesday, December 10th

Printable Page

• Your Text Here

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Backdrops:- These are full sized backdrops, just scale them up!- Can be Copy-Pasted out of Templates for use anywhere!

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