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3 cards from this section. Quick, good the night before a test.
What is surface tension?
Think about how rainwater beads on a smooth surface.
Define capillarity.
Consider how water rises in a straw.
What is surface tension?
Consider how water beads up instead of spreading out.
True or False: Surface tension decreases with increasing temperature.
Think about how heat affects the behavior of water.
A water droplet of radius 1 cm is split into 100 smaller droplets. Calculate the work done if the surface tension is 0.072 N/m.
Consider the initial and final surface areas of the droplets.
How would the height of liquid in a capillary tube change if the diameter of the tube is reduced by half?
Think about the relationship between radius and capillary rise.
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