Chapter 8: Fluid Mechanics

Buoyant Force

Watch a demonstration of the suspended egg experiment  — an exploration of buoyancy and density — and then perform it yourself.

https://www.youtube.com/watch?v=XhBKq8pPDcY

(Objective: Determine the magnitude of the buoyant force exerted on a floating object or a submerged object.)

Follow these simple steps to create your own ketchup packet Cartesian diver. Experiment with different brands and condiments to see which ones perform better.

http://littleshop.physics.colostate.edu/Try%20At%20Home/Cart.html

http://littleshop.physics.colostate.edu/Try%20At%20Home/Cart.html

(Objective: Explain why some objects float and some objects sink.)

Using common household items, design and build a miniature submarine that will float, sink, and hover just like the real thing.

http://www.msichicago.org/online-science/activities/activity-detail/activities/design-a-submarine/

http://www.msichicago.org/online-science/activities/activity-detail/activities/design-a-submarine/

(Objective: Explain why some objects float and some objects sink.)

Fluid Pressure

Two scientists experiment with water balloons on NASA’s low gravity aircraft.

http://www.space.com/16370-pop-a-water-ballon-in-space-what-happens-video.html

(Objective: Calculate how pressure varies with depth in a fluid.)

 

Bernoulli’s Principle

This page provides a variety of demonstrations of the Bernoulli principle in action.

http://www.physics.umn.edu/outreach/pforce/circus/Bernoulli.html

http://www.physics.umn.edu/outreach/pforce/circus/Bernoulli.html

(Objective: Recognize the effects of Bernoulli’s principle on fluid motion.)

How does Bernoulli’s principle apply on the International Space Station? Watch this video and find out!

http://archive.org/details/LaunchpadBernoullisPrincipleOn-boardTheInternationalSpaceStation

(Objective: Recognize the effects of Bernoulli’s principle on fluid motion.)