Why are balloons harder to inflate when you start, and feel easier once they start expanding?

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I mean your average party balloon, when it’s completely deflated, it seems you have to put extra effort into getting it going. As soon as it starts inflating, you need less effort.

In: Physics

28 Answers

Anonymous 0 Comments

It’s a matter of surface area to volume ratio. When you start, adding a breath’s worth of air has to stretch the balloon a lot, but near the end, a single breath only stretches it a little.

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