Is it magic?!? No! It's inertia!
Author: Ms. Davis Labels:: InertiaAh yes, the good ol' pull-the-tablecloth-off-the-table-without-sending-dishes-flying routine. The oldest trick in the book? Possibly, but BMW has taken it upon themselves to update the classic demonstration in a major way. (http://www.autoblog.com/).
Take a look at the video and respond to the question below.
You have learned that inertia is the tendency of an object to resist a change in its current state of motion. As you ride in a car, everything in it and on it is also moving. If the car makes an abrupt stop, the objects in and on the car will continue to move. You know this because your body is thrusted forward once the driver slams on brakes. This demonstrates inertia.
Objects at rest also demonstrate inertia, and the tablecloth trick shown in the video is an excellent example.
How does the tablecloth trick demonstrate inertia?
All correct responses will be featured on the blog. Also, students that respond correctly by Friday, September 24, 2010 will receive a treat. Try it!
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The trick works by the dishes having a greater mass which makes it have a great inertia.If the dishes have a greater mass they will stay at rest while the tablecloth is moving.