Fluid flow in a pipe obeys the equation of continuity. If
at one place along the pipe the cross-sectional area is A and
the fluid velocity is v, while at another location the
cross-sectional area is A and the fluid velocity is v, then
it follows that Av = Av. This equation guarantees that fluid
will not be accumulated in or depleted from any region.
Bernoullis equation is really the principle of
conservation of energy applied to fluid motion. It states that
if some fluid is flowing through a pipe, then the quantity
given by P + (density)gh + (1/2)(density)(velocity squared) has
the same value at any location in the pipe. Here P is the
pressure and h is the height of the pipe at the location of
To solve problems involving fluids in motion, it is usually
the case that both the equation of continuity and Bernoullis
equation are used.
Fluids in Motion
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.
The book offers a complete review of your AP course, strategies to give you the edge on test day, and plenty of practice with AP-style test questions. It includes full length practice exams modeled on the real test and all the terms and concepts you need to know.
This book includes a review of all the topics tested including vectors, kinematics, fluid mechanics, optics and nuclear physics. Additionally, the book includes two full length tests made complete with descriptive solutions, and quick study tables for Physics B formulas and equations.