Understanding Density, Pressure, and Fluid Systems
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Know what the relationship is between density and temperature
Substances have different densities depending on their temperature.
For example, a lake on a hot summer day. The surface temperature is warmer than the water beneath. The warm water floats on the cold because it has a lower density.
Know why your ears pop when you are landing at an airport
Your ears pop from pressure change. The change of pressure outside causes your middle ear to have to readjust, resulting in a popping sound
Know the term buoyancy and why objects sink or float in a substance
Buoyancy is the ability of an object in a fluid to rise or sink due to density differences with its surroundings.
Know the densities of some common substances
Sea water | 1.03g/mL |
distill | 1g/mL |
Know
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