| DCS # | DEMONSTRATION | REFERENCE | ABSTRACT |
|---|
| 1J11.00 | Exceeding Center of Gravity | | |
| 1J11.10 | leaning tower of Pisa | PIRA 500 | |
| 1J11.10 | leaning tower of Pisa | 1J11.10 | Add a top to a slanted cylinder and it falls down. Also hang a plumb bob from the center of mass in each case. |
| 1J11.10 | leaning tower of Pisa | Mp-9 | A model of the tower constructed in sections. Adding the top will cause it to tip over. |
| 1J11.10 | leaning tower of Pisa | M-34 | Add on to the leaning tower and it falls down. |
| 1J11.10 | leaning tower of Pisa | M-18b.1 | The leaning tower of Pisa. |
| 1J11.11 | toppling cylinders | PIRA 1000 | |
| 1J11.11 | falling cylinders | AJP 34(9),822 | A tube, weighted at the bottom, falls when a cap is added. An upright cylinder, containing two balls, falls when a weighted cap is removed. |
| 1J11.11 | toppling cylinders | Disc 03-26 | The standard leaning tower and an upright cylinder that topples when the cap is removed. It has two balls in the tube. |
| 1J11.12 | irregular object center of mass | PIRA 1000 | |
| 1J11.15 | tipping block on incline | PIRA 1000 | |
| 1J11.15 | tipping block on incline | 1J11.15 | Raise an incline plane until a block tips over. |
| 1J11.15 | tipping block on incline | TPT 16(7),506 | A very clever modification of the leaning tower of Pisa demonstration. |
| 1J11.15 | tipping block on incline | Mp-14 | A block is placed on an incline and the incline is raised until the block tips. |
| 1J11.20 | leaning tower of Lire | PIRA 200 | Stack blocks stairstep fashion until the top block sticks out beyond any part of the bottom block. |
| 1J11.20 | leaning tower of Lire | 1J11.20 | Use 6"x6"x2' wood blocks and have a student sit under the stack as it is built. |
| 1J11.20 | leaning tower of lire | AJP 23(4),240 | A note discussing the derivation of the harmonic series describing the leaning tower of Lire. |
| 1J11.20 | leaning tower of Lire | TPT 18(9),672 | Use the center of mass of a composite object to support a block beyond the edge of the lecture bench. This article emphasizes a lab approach. Ref. AJP 23,240 (1955). |
| 1J11.20 | leaning tower of Lire | Mp-11 | Stack blocks until the top block sticks out beyond any part of the bottom block. |
| 1J11.21 | cantilevered books | AJP 41(5),715 | The number of books necessary to overhang 2,3,4, etc lengths. |
| 1J11.30 | instability in flotation | M-287 | A device to raise the center of mass in a boat until the boat flips. Diagram. |
| 1J11.40 | male and female center of gravity | PIRA 1000 | |
| 1J11.40 | people tasks, etc. | TPT 21(1),42 | Pictures of three center of mass objects and several person based center of mass tasks e.g., stand on your toes facing the wall, etc. |
| 1J11.40 | male & female center of gravity | 14-3.7 | Stand with right shoulder and foot against the wall and raise your left foot. Stand with your heels against the floor and try to touch your toes. |
| 1J11.50 | double cone | PIRA 1000 | |
| 1J11.50 | double cone | 1J11.50 | As a double cone moves up an set of inclined rails, its center of gravity lowers. |
| 1J11.50 | rolling uphill | TPT 16(1),46 | A simple version of a ball rolling up a "v". |
| 1J11.50 | double cone | Mr-1 | A double cone rolls up an inclined "v" track. |
| 1J11.50 | double cone | M-37 | Double cone and rails. |
| 1J11.50 | double cone | M-18a.3 | A double cone rolls up an inclined "v" track. |
| 1J11.50 | double cone on incline | Disc 03-24 | The double cone appears to roll uphill. |