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PSA Microgravity Challenge
Preliminary Designs


Bullyard State School
Mr. Brennan's 6/7th Grade
Joel

Expert Response


For the NASA competition ,the sixth graders at Bullyard State School drew a device that would be able to lift the PSA and make it do its special requirements.

There is two bits of string attached to the PSA. The string will go over the winches. The string will get tied around the attachments on the wooden post.

student drawing of design


Response from Expert Dan Andrews:

This is a very clear diagram - easy to understand.

What happens if I push the ball up and then let go? I think the ball will simply fall down.

What if I pushed it sideways? I think it would move until I removed my finger, and then it would swing back like a wrecking ball.

How would you create a way for the ball to keep moving after you push it?

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