1F20 Inertia of Rest

Inertia balls-Video

demonstration image
Catalog: 
1F20.10B
Location: 
3_1
Video Encyclopedia: A mass is suspended between two cords. Pull slowly or jerk on the lower cord.

Tablecloth pull-Video

demonstration image
Catalog: 
1F20.30B
Location: 
3_1
Video Encyclopedia: Pull a low friction tablecloth from under a place setting.

Eggs and pizza pan-Video

demonstration image
Catalog: 
1F20.35
Location: 
3_1
Video Encyclopedia: Place a pizza pan on three beakers, place cardboard tubes on the pan directly above the beakers, and eggs on the tubes. Knock out the pizza pan.

Shifted air track inertia-Video

demonstration image
Catalog: 
1F20.50
Location: 
3_1
Video Encyclopedia: Move the air track under an air track glider

Pen in a Bottle

The pen should fall in the bottle.
Catalog: 
1F20.36
Location: 
Ab3
Demonstrates inertia of rest using a pen carefully balanced on a hoop, that is balanced on a Coca-Cola bottle.

Smash Your Hand

Catalog: 
1F20.20
Location: 
Ab3 (lead brick is in Af6)

Place a lead brick on your hand and hit it with a hammer and you will not feel the blow of the hammer. Repeat the demo substituting a wooden block, but do not hit the block with as much force as before and you will feel the hammer's blow.