BIG BLACK METAL DOORSTOP AS A HANDSHIELD

Demo Number	358
Location	Shelf 57
Description	One side of the doorstop is lowered onto your fingers (gently!) and then you hit the hammer on top of the doorstop. An excellent demonstration of inertia, and a sure way to get students’ attention.
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Tips	Be careful: the doorstop is very heavy and would easily damage fingers if dropped on them. You may want to practice once before class, so you know your tolerance, and how hard you want to hit (you can still feel the hammer blows slightly) The drama can be heightened by not explaining the physics first You will need a hammer. You can find one on the pegboard by the red toolbox.

Colorado State University