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\nWhat happens when a NERF dart breaks the SPEED OF SOUND?\n

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\n\nPublisher:\n\nThe Backyard Scientist\n\n\n
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\nA few more thoughts on the Nerf Cannon.Yes, I know if I used a longer barrel I could get higher speeds, but I did not want to deal with a 20ft long gun. I think a 6ft barrel was enough to show what a supersonic nerf dart can do. I always...\nA few more thoughts on the Nerf Cannon.
Yes, I know if I used a longer barrel I could get higher speeds, but I did not want to deal with a 20ft long gun. I think a 6ft barrel was enough to show what a supersonic nerf dart can do.

I always thought the speed of sound was the limiting factor, because the flow 'chokes' at mach 1. Its a big controversy among air-gunners.

It turns out flow does choke at mach 1, but its only the mass flow that chokes. The gas can still expand supersonically.\n
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Resource Details

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Curator Rating
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Educator Rating
Not yet Rated
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Media Length
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9:18
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Grade
K - 5th
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Subjects
Science
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Media Type
Instructional Videos
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Source:
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\nTheBackyardScientist\n\n
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Date
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2020
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Language
English
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Audiences
For Teacher Use
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Usage Permissions
Fine Print: Educational Use
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Concepts

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traveling, sound, pressure, speed
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Additional Tags

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dart, bb gun, special pump, nerve, dark, camera, chemical, nerve dark, supersonic, burst discs, fast, gun faster, pressure chamber, nerf gun, nerve dart, nerve start, science experiments, reactions, pretty amazing, faster, scientist, make, experiments, blue confetti, ear plug, pump, vacuum, video, amazing camera, hard, nerfed art, chemistry, backyard scientist
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