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This Bend That Bar activity also includes:
Bend it, but don't break it. Groups investigate the strength of different materials. Using a procedure in the seventh segment of a 22-part series on aviation, pupils determine how far a rod will bend. They determine the strength-to-mass ratio of each material.
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CCSS:
Designed
NGSS:
Designed
Concepts
Additional Tags
Instructional Ideas
- Use in conjunction with the weight force lesson
- Have the class determine the density of each rod and find the strength versus density
Classroom Considerations
- Requires several rods of different materials
Pros
- Provides descriptions of possible extensions
- Includes things to be aware of when setting up the activity
Cons
- Confuses weight and mass in the table