Shape of the Day
- Attendance
- Yellowjackets Season 3 will be filming on Tuesday, May 28
- Will be some disruptions with traversing the main floor and 2nd floor hallways
- Project – Build an Electromagnet – can re-submit for one week after getting it back
- Electroplating
- Previous student electroplating projects have not worked very well, probably due to inadequate cleaning before electroplating
- Read the ASTM Standard Guide for Cleaning Metals Prior to Electroplating by Friday
- Will be plating nickel onto copper
- Deadfall Trap Project
- There are now smaller masses for testing
- 4 x 25 g
- 4 x 50 g
- 4 x 75 g
- How many groups have successfully triggered with 5g?
- Can use the 5g trigger mass attached via a string and pulley to the crossbar
- Should be finished building a first prototype (and have a picture for the FBD’s)
- Should be experimenting with other prototypes
- Can re-use/modify sticks from previous prototypes to save time
- Draw the free body diagrams of the 3 sticks and the rock (4 FBD’s total)
- Include angles and lengths
- Write out equations
- Try to relate the equations back to what you observed worked well/poorly during construction of your first prototype
- Have unique names for each force, across all 4 FBDs
- End up with 12 equations and 12 unknowns
- Last work day: Thursday, May 23
- Due date: Friday, May 24
- There are now smaller masses for testing
- Wrap-up
- Read the ASTM Standard Guide for Cleaning Metals Prior to Electroplating by Friday