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science- chap. 11
chapter 11- air pressure, etc
Question | Answer |
---|---|
pressure | force/ area |
pascal | unit of pressure equal to one newton per square meter |
fluid | substance that can easily flow |
Pascal's principle | rule that when force is applied to a confined fluid, the increase in pressure is transmitted equally to all parts of the fluid |
buoyant force | upward force exertedby a fluid on a submerged object |
Archimedes' principle | states that buoyant force on an object is equal to the weight of the fluid is placed by the object |
how does a boat float? | surface area of the bottom of the boat causes it to float |