Monday, May 2, 2016

Year 9 -Physics-2-5-16

Hydraulics

Question 1
Fill in the blanks
Liquids can ____________ and are virtually ____________.  These properties mean that a

____________ exerted at one point on the liquid will be ____________ to other points on the

liquid.  ____________ can also be transmitted through a liquid – it is transmitted

____________ in all directions

transmitted    force   equally    incompressible     pressure      flow

Question 2

   a)      What is the pressure exerted by a man who weighs 600N and whose feet cover an area of 3.5m2?
   b)     Instead of standing up he now lies on his back.  What affect does this have on the pressure?  Why?

Question 3
   a)      What is the pressure exerted by an elephant who weighs 2500N and whose feet cover an area of 7.5m2?

Question 4
   a)      What is the pressure exerted by the master piston?
   b)     What is the pressure on the liquid and the slave piston?
   c)      What force is produced by the slave piston?


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