Chapter 8, Problem 17RQ

Does Pascal's principle provide a way to get more energy from a machine than is put into it? Defend your energy.

To determine

Whether the Pascal's principle provide more energy from a machine than is put into it.

Answer to Problem 17RQ

No, Pascal's principle does not provide more energy from machine than is put into it.

Explanation of Solution

Pascal's principle does not provide more energy, as it does not break the law of conservation of energy, as it obeys the law of conservation of energy. Pascal's principle provides more force as compared to the input force, and this can be seen in the case of hydraulic press, an application of this principle.

When a force is employed on one end of the hydraulic press, a greater amount of force is exerted by the fluid on the other end, depending upon the area. It does not disrupt the energy conservation, as a decrease in the distance at one end counter-balances with other parts movement.

Conclusion:

Therefore, Pascal's principle does not provide more energy from machine than is put into it.