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SCIENCE
Chapter11 - Section 3 - Pascal's Principle
| Question | Answer |
|---|---|
| what is Pascal's principle | when force is applied to a confined fluid, the change in pressure is transmitted equally to all parts of the fluid |
| how does Pascal's principle explain what you observe when you squeeze one side of a closed soda bottle that is full of water | If you squeeze one side of a full, closed soda bottle, the pressure is transmitted to all parts of the soda bottle, as stated by Pascal's principle |
| how does a hydraulic system apply Pascal's principle | a hydraulic system is a device that uses pistons with different surface areas to multiply an input force that is transmitted through a fluid |
| what is a hydraulic system | is one that uses confined fluid to transmit pressure and multiply force |
| how does hydraulic system work | a hydraulic system multiplies force by applying the force to a small surface area. the increase in pressure is then transmitted to another part of the confined fluid, which pushes on a larger surface area |
| what are some uses of hydraulic systems | hydraulic brakes and lift system |
| why is a leak in a hydraulic system a problem | in order for pressure to be transmitted in a fluid, the fluid must be confined. If the hydraulic system is leaking, the fluid is not confined. |
| according to Pascal's principle, how is pressure transmitted in a fluid | the pressure is transmitted equally throughout all parts of the fluid |
| if you know the weight of an object that floats, you also know the --------- | buoyant force |
| whether an object will float or sink in a fluid depends on its --------- | density |
| a submerged object is easier to lift due to --------- | buoyant force |
| a ship is able to float on the surface of the ocean because of -----------which states that ----------- | Archimedes' principle - the buoyant force acting on a submerged object is equal to the weight of the volume of fluid displaced by the object |
| Create a flow chart that shows how a hydraulic device multiplies force. | Force applied to small piston, then a) pressure in a confined fluid is increased b) the pressure is transmitted equally throughout the fluid c) the confined fluid presses on a piston with a surface area d) the original force is multiplied |
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