| DCS # | DEMONSTRATION | REFERENCE | ABSTRACT |
|---|
| 1J40.00 | Static Torque | | |
| 1J40.10 | grip bar | PIRA 200 | A thin rod mounted perpendicular to a broom handle holds a 1 Kg mass on a sliding collar. |
| 1J40.10 | grip bar | 1J40.10 | Use wrist strength to lift a 1 kg mass at the end of a rod attached to a broom handle. |
| 1J40.10 | grip bar | Mo-5 | Use wrist strength to try to lift 1 kg at the end of a rod attached perpendicularly to a handle. |
| 1J40.10 | grip bar | 14-3.1 | A thin rod mounted perpendicular to a broom handle holds a 1 Kg mass on a sliding collar. |
| 1J40.10 | torque bar | Disc 04-10 | Use wrist strength to lift a weight suspended at various distances from the handle. |
| 1J40.15 | torque wrench | PIRA 1000 | |
| 1J40.15 | torque wrench | TPT 15(2),115 | Modify a Sears torque wrench so weights can be hung at different distances. |
| 1J40.15 | torque wrench | Disc 04-12 | A torque wrench is used to break aluminum and steel bolts. |
| 1J40.16 | different length wrenches | PIRA 1000 | |
| 1J40.16 | different length wrenches | 1J40.16 | |
| 1J40.20 | meter stick balance | PIRA 200 | Hang weights from a beam that pivots in the center on a knife edge. |
| 1J40.20 | torque beam | 1J40.20 | Hang weights from a beam that pivots in the center on a knife edge. |
| 1J40.20 | torque beam | Mo-1 | Weights are hung from a horizontal bar pivoted on a knife edge. |
| 1J40.20 | torque beam | M-27 | Weights are hung from a meter stick suspended on a knife edge. |
| 1J40.20 | torque beam | M-18a.1 | Weights on a meter stick supported at the center. |
| 1J40.20 | balancing meter stick | Disc 04-14 | Use a meter stick, suspended at the center, as a torque balance. |
| 1J40.21 | hinge board | PIRA 1000 | |
| 1J40.21 | hinge board | Disc 04-11 | Use a spring scale to lift a hinged board from various points along the board. |
| 1J40.23 | torque beam | TPT 11(7),427 | Put a quarter (5 g) on the end of a meter stick and extend it over the edge of the lecture bench until it is just about to tip over. |
| 1J40.24 | walking the plank | PIRA 1000 | |
| 1J40.24 | walking the plank | 1J40.24 | Place a 50 lb block on one end of a long 2x6 and hang the other end off the lecture bench. Walk out as far as you can. |
| 1J40.25 | torque wheel | PIRA 1000 | |
| 1J40.25 | torque disc | Mo-2 | Weights can be hung from many points on a vertical disc pivoted at the center. |
| 1J40.25 | torque disc | M-28 | Various weights are hung from a board that can rotate freely in the vertical plane. |
| 1J40.25 | torque wheel | Disc 04-13 | Use a wheel with coaxial pulleys of 5, 10, 15, and 20 cm to show static equilibrium of combinations of weights at various radii. |
| 1J40.26 | torque disc | 12-4.8 | An apparatus to show the proportionality between torsional deflection and applied torque. |
| 1J40.26 | torque disc | 14-3.5 | Twist a shaft by applying coplanar forces to a disc. |
| 1J40.27 | torque double wheel | PIRA 1000 | |
| 1J40.30 | opening a door | PIRA 1000 | |
| 1J40.30 | opening door | 1J40.30 | |
| 1J40.32 | opening a trapdoor | PIRA 1000 | |
| 1J40.32 | opening trapdoor | 1J40.32 | |
| 1J40.40 | loaded beam | PIRA 500 | |
| 1J40.40 | loaded beam | 1J40.40 | Move a weight along a 2X4 on two platform scales. |
| 1J40.40 | loaded beam | Mo-7 | Large masses can be placed on a board resting on two platform balances. |
| 1J40.40 | loaded beam | 14-3.6 | A model bridge is placed on two platform scales and a loaded toy truck driven across. |
| 1J40.40 | loaded beam | M-23 | A heavy truck is moved across a board supported on two platform scales. |
| 1J40.40 | bridge and truck | Disc 04-16 | A plank rests on two spring scales forming a bridge. Move a toy truck across. |
| 1J40.41 | loaded beam | M-26 | Support the loaded beam with spring scales instead of platform balances. |
| 1J40.45 | Galileo lever | PIRA 1000 | |
| 1J40.45 | Galileo lever | 1J40.45 | Same as Sutton device. |
| 1J40.45 | Galileo lever | M-22 | A simple device to demonstrate the law of moments. |
| 1J40.45 | Galileo lever | M-21 | A simple device to show the law of moments. |
| 1J40.50 | Roberval balance | PIRA 500 | |
| 1J40.50 | Roberval balance | 1J40.50 | Large Roberval balance. |
| 1J40.50 | Roberval balance | TPT 22(2),121 | A reminder and picture of the Roberval balance. Reaction to TPT 21, 494 (1983). |
| 1J40.50 | Roberval balance | Mo-6 | A large model of the Roberval or platform balance. |
| 1J40.50 | Roberval balance | Disc 04-17 | Neutral equilibrium is maintained at any position on the platform. |
| 1J40.51 | Roberval balance | 12-4.9 | A version of the Roberval balance where a rigid assembly has upper and lower arms on one side. |
| 1J40.55 | balances | M-42 | The equal-arm analytical balance and weigh bridge. |
| 1J40.56 | balances | M-41 | The steelyard. |
| 1J40.60 | suspended ladder | PIRA 1000 | |
| 1J40.60 | suspended ladder | 1J40.60 | |
| 1J40.60 | suspended ladder | 14-3.4 | Model of a ladder suspended from two pairs of cords inside an aluminum frame. |
| 1J40.65 | hanging gate | PIRA 1000 | |
| 1J40.65 | hanging gate | 1J40.65 | A gate initially hangs on hinges, then add cords and remove the hinges leaving the gate suspended in mid air. |
| 1J40.65 | hanging gate | TPT 12(8),503 | Construction and use of a model of the swinging gate. |
| 1J40.70 | crane boom | PIRA 1000 | |
| 1J40.70 | crane boom | 1J40.70 | |
| 1J40.75 | arm model | PIRA 1000 | |
| 1J40.75 | arm model | 1J40.75 | Place a spring scale on a skeleton in the place of the biceps muscle and hang a weight from the hand. |
| 1J40.75 | arm model | Disc 04-09 | Use an arm model simulating both biceps and triceps muscles to throw a ball. |