MECHANICS - NEWTON'S SECOND LAW - ACCELERATED REFERENCE FRAMES NC State University Faculty Access

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Float Accelerometer
# 1G20.76


Description: A fishing bobber suspended under water by a string moves in the direction of an acceleration is experiences.

Instructions: The accelerometer will be left in it's box when placed in the classroom. Carefully remove it from the box, invert it, and start accelerating!

Ask your students for theri best guess as to how it works!

Hazards: Be VERY CAREFUL when working with this demo!

It weighs nearly 15 lbs. and would cause major injury if dropped on a foot or student.

Parts: float accelerometer (in it's box)

Purchased/Built: built

Quant. in Demo Room: 1

Demo References
Meiners 8-3.9 An iron ball is suspended from the top and a cork ball from the bottom of a clear box filled with water mounted on wheels.
The Video Encyclopedia of Physics Demonstrations Disc 13-16 Two jars of water, one has a light ball suspended from the bottom, the other has a heavy ball suspended from the top.
Meiners 8-3.2 Two flasks full of water, one has a cork ball, the other has a heavier than water ball.
The Physics Teacher TPT 2(4),176 A float in a glass of water on an accelerating cart. Also, moving in uniform circular motion.

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