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ch 13 quiz

QuestionAnswer
A hydraulic press multiplies a force by 100, which is done at the expense of the distance through which the force acts.
When holes are drilled through the wall of a water tower, water will spurt out with the greatest speed from the hole closest to the bottom of the tower.
A mountain that floats on the mantle indicates that the density of the mantle is greater than that of the mountain
The mass of a cubic meter of water is 1000kg
When an object is partly or wholly immersed in a liquid, it is buoyed up by a force equal to the weight of liquid displaced
A dam is thicker at the bottom than at the top mainly because water pressure increases with depth
The pressure in a liquid depends on liquid depth and density
When an ice cube in a glass of water melts, the water level remains the same
The pascal is a pressure unit equal to 1 newton per square meter
A scale from which a rock is suspended reads 5 N when the rock is out of water and 3 N when the rock is submerged. The density of rock is 2.5 times the density of water.
Compared to the density of water, the density of a fish is the same.
To multiply an applied force while using a simple hydraulic lift, your force should be applied to the small -diameter piston
A scale from which a rock is suspended reads 5 N when the rock is out of water and 3 N when the rock is submerged. Buoyant force on the rock is 2 N
Buoyant force is greater on a submerged 1-cubic centimeter block lead and aluminum - the same.
Created by: edw13
 

 



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