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Design challenge: a crash-safety device — Homework
Use this week's stopping-time ideas to explain each safety design.
- 1.Why do moving boxes ship fragile items surrounded by packing peanuts instead of touching the box walls?
- 2.Why are car airbags designed to inflate and then deflate as a body presses into them, rather than staying rigid?
- 3.A dropped phone is more likely to crack on tile than on thick carpet from the same height. Explain why.
- 4.A padded design and an unpadded design both stop the same 2 kg object from the same speed. Which involves a smaller peak force?
- 5.Describe your own design for protecting a raw egg dropped from shoulder height, naming the cushioning material.
🌲 Homeschool of the FutureEighth Grade · Science · week 8 homework