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3 cards from this section. Quick, good the night before a test.
What is relative density?
Think about how it's compared to water.
If an object has a relative density of 0.5, will it float or sink?
Remember that anything less than 1 floats.
What is the relative density of a substance that has a density of 2 g/cm³ when compared to water?
Remember the formula for relative density.
True or False: Relative density has units.
Consider what it means to be a ratio.
A substance has a density of 0.85 g/cm³ and is placed in water (1 g/cm³). What will happen to it, and how would you express this using relative density?
Use the formula: Relative Density = 0.85 g/cm³ / 1 g/cm³.
Explain why materials with a density of 8 g/cm³ would pose problems for construction materials used in boats.
Refer back to the principle of buoyancy and sinking.
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