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2 cards from this section. Quick, good the night before a test.
What is surface tension?
Think about the extra energy at the surface of a liquid.
What effect does surface tension have on liquid droplets?
Consider why a balloon stays round.
What causes surface tension in liquids?
Think about how a water droplet holds its shape.
True or False: Surface tension is only significant in non-living systems.
Consider examples from both living and non-living systems.
If a drop of water has a radius of 2 mm, calculate the excess pressure inside the droplet.
Use the formula provided for pressure differences.
Consider a capillary tube with a radius of 1 mm in which water rises to a height of 10 cm. Calculate the surface tension of the water.
Consider the variables involved in the system to find surface tension.
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