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- 1. Multiple Choice
What pressure does a 4000N horse exert on the ground if each foot is 10cm2?40 N/cm2100 N/cm2400 N/cm210 N/cm2 - 2. Multiple ChoiceIf the horse reared up on 2 legs what effect would it have on the pressure?it will exert half the pressure it did beforeit will exert the same pressure it did beforeit will exert twice the pressure it did beforeit will exert four times the pressure it did before
- 3. Multiple ChoiceArmy tank tracks are useful for travelling through the mud because..they decrease the force the vehicle exerts on the groundthey increase the force the vehicle exerts on the groundthey decrease the pressure the vehicle exerts on the groundthey increase the pressure the vehicle exerts on the ground
- 4. Multiple ChoiceWhich of these animals would probably cause the greatest pressure on the ground?A fat cow with big feetA fat cow with small feetA calf with big feetA calf with small feet
- 5. Multiple ChoiceWhat happens?Neither piston movesPiston A goes up and B goes downPiston B goes up and A goes downBoth pistons go down
- 6. Multiple ChoiceHow can you get these pistons to balance?Put equal masses on both sidesPut heavier mass on the left pistonThey will never balance because one is fatter than the otherPut a heavier mass on the right piston
- 7. Multiple ChoiceWhy doesn't a plunger work on the moon?The vacuum in space applies too much pressure to the plungerThere is no air to suck up the waterThere is no air on the moon so you can't create a pressure differenceThe gravity is less than the pressure so it won't stick
- 8. Multiple ChoiceWhere would you find the largest pressure?At the bottom of the oceanAt the top of Mt EverestClose to ground on the Scotch ovalIn a rockpool on the Great Barrier Reef
- 9. Multiple ChoiceHow would you calculate the force to be used on a brake of area 0.5cm2 if the slave cylinder has a 4cm2 area and needs 800N to stop the car.4 x 800 x 0.5800/0.5 x 40.5 x 4 x 800800 x 0.5 /4
- 10. Multiple ChoiceWhat is the pressure in the hydraulic fluid?1210 N484 N/m28000 N3025 N/m2
- 11. Multiple ChoicePressure is equal to....Force/AreaVolume/TimeForce/DensityForce times gravity
- 12. Multiple ChoiceA force of 20 N acts over an area of 4m2. Calculate the pressure80 Pa5 Pa80 N5 N
- 13. Multiple ChoiceWhich of these animals would probably cause the greatest pressure on the ground?A fat cow with big feetA fat cow with small feetA calf with big feetA calf with small feet
- 14. Multiple ChoiceWhat is the force up on the mailbox?1210 N8000 N7744 N5655 N
- 15. Multiple ChoiceThe amount of force pushing on an area is the definition of....FluidViscosityBarometerPressure
- 16. Multiple ChoiceWhich of the following is NOT an example of unites for expressing pressure?N/m2kg/m2atmPa
- 17. Multiple ChoiceThe unit m3 is a unit of:VolumeMassDensityArea
- 18. Multiple ChoiceThe density of water is ____ g/cm3.1100010010
- 19. Multiple Choice
How would you calculate the force to be used on a brake of area 0.5cm2 if the slave cylinder has a 4cm2 area and needs 800N to stop the car.
4 x 800 x 0.5
800/(0.5 x 4)
0.5 x 4 x 800
(800 x 0.5) /4
- 20. Multiple ChoiceA fluid exerts 500 N of force over an area that measures .5 m2. What is the pressure exerted by the fluid?1,000 Pa2,000 Pa750 Pa250 Pa
- 21. Multiple ChoiceWhat system used in many applications like forklifts or jacks works on Pascal's principlehydraulicssprocketswidgetsbrakes
- 22. Multiple ChoiceCar brakes and car jacks are examples ofhydraulic systemsarchimedes' principleatmospheric pressurebuoyancy
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