Bouyancy Flashcards

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1
Q

What is Surface tension? (2)

A

A property of the surface of a liquid that allows it to resist an external force; it appears to have thin elastic skin.

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2
Q

What is surface tension created by?

A

Force between water molecules

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3
Q

How is surface tension created (long answer, 3 marks or smthng)

A

Each water molecule is pulled equally in all directions by neighbouring molecules which results in a net force or zero. The molecules at the surface don’t have water molecules on all sides so they stick stronger to those next to them which creates a “skin” that behaves like an elastic membrane.

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