Summary
Bill teeters, spins, and tips things over to show how balanced and unbalanced forces decide whether something stays put or falls.
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Teaching resources
Discussion questions
Discussion
Bill teeters, spins, and tips things over to show how balanced and unbalanced forces decide whether something stays put or falls..
- What keeps a balanced object from tipping over?
- What happens when the forces on something become unbalanced?
- Why is it easier to balance with your arms out?
Quick work-a-long
Vocabulary: balance, force, center of gravity.
Try it: Balance a ruler on one finger, then move it - explain when it tips and why.