PHEP CHP 2 Review Flashcards
Potential energy is most associated with: push, pull, force, or friction?
Force
Force acting through a distance is called __________?
Work
Energy available for future us is called?
Potential
What is power?
The rate at which work is done.
Falling water contains what kind of energy?
Kinetic
Acceleration due to the force of gravity = _________
32 ft/sec^2
A foot pound is a unit of _________
Work
If an object falls for 5 seconds, how many feet will it fall?
D = .5at^2
(.5)(32)(5)^2 = 400
What is the theoretical velocity of a freely falling body?
Square root of 2gh
If the velocity of a stream of water is doubled, the weight of the material it can carry is increased by how much?
16
The transfer of kinetic energy contained in falling water to mechanical energy at the blade of hydraulic turbine involves how many laws of motion?
All 3
Increasing the velocity of falling water will __________ the available kinetic energy
Increase
Disregarding all other losses, rate of flow of a liquid is the product of ________ x ___________
Area; velocity
If the diameter of a pipe is decreased uniformly at its termination and with no change in pressure head, exit velocity of a liquid is ___________.
Increased
With continuous steady flow, total head at any point in a stream is equal to:
Total head at any point downstream plus loss of head between the two points.
