Differences between revisions 3 and 4

Work and Energy

PIRA classification 1M

1M10. Work

PIRA #	Demonstration Name	Abstract
1M10.10	shelf and block Lift a block up and set it on a shelf.
1M10.15	block on table
1M10.16	carry a block	Just carry a block around.
1M10.20	pile driver	Drive a nail into a block of wood with a model pile driver.
1M10.20	pile driver	A model pile driver pounds a nail into wood.
1M10.20	pile driver	A 10 lb block guided by side rails falls onto a nail in wood.
1M10.20	pile driver	Drive a nail into a block of wood with a model pile driver.
1M10.20	pile driver	Drop a weight onto a nail in wood.
1M10.25	pile driver with soda cans	Smash pop cans with a pile driver.
1M10.99	work to remove tape	Pull off a piece of tape stuck to the lecture bench.

1M20. Simple Machines

1M20.11 [:BlockNTackle: Block and Tackle Pulley Systems and Pulley Advantage]

1M30. Non-Conservative Forces

PIRA #	Demonstration Name	Abstract
1M20.01	simple machines	A collection of simple machines is shown.
1M20.10	pulleys	An assortment of large pulleys can be rigged several ways.
1M20.10	pulleys	Demonstrate what you have.
1M20.11	pulley advantage	Place a mass on a string over a pulley and hold a spring scale at the other side. Repeat with a mass hanging from a single pulley in a loop of string.
1M20.11	pulley advantage	Hang a 10 newton weight on a string passing over a pulley and measure the force with a spring scale, then hang the weight from a free running pulley.
1M20.13	pulleys	Pedagogy. Good diagram.
1M20.15	pulley and scales	Same as encyclopedia disc 04-05.
1M20.15	pulley and scales	This is a counter intuitive demonstration. A frame containing a spring scale and pulley hangs from another spring scale. Look it up.
1M20.20	bosun's chair	Use a single pulley to help the instructor go up.
1M20.20	bosun's chair	Using a block and tackle, the lecturer ascends. Full of pedagogical hints on how to do this effectively.
1M20.20	bosun's chair	The instructor "lifts himself up by the bootstraps".
1M20.25	monkey and bananas	A wind up device and equal mass are placed at either ends of a string placed over a pulley.
1M20.25	monkey and bananas	A yo-yo and counterweight are suspended over a pulley. The counterweight and yo-yo rise and fall together.
1M20.25	monkey and the coconut	A steel yo-yo and steel counterweight suspended over two low friction bearings.
1M20.25	climbing monkey	A yo-yo and a counterweight are on opposite sides on a pulley. As the yo-yo goes up and down, so does the counterweight.
1M20.25	climbing monkey	A steel yo-yo on one side of a pulley and a counterweight on the other. As the yo-yo goes up and down, so does the counterweight.
1M20.26	climbing monkey	Two equal masses are hung over a pulley, one of which is equipped with a cord winding mechanism.
1M20.27	windlass	A model windlass is described.
1M20.28	climbing pirate	String is wrapped around two different sized pulleys on a common axis.
1M20.29	fool's tackle	A diagram of the "fools tackle" is shown.
1M20.30	incline plane
1M20.30	screw and wedge	A long triangular piece of sailcloth is wound around a mailing tube to show the relationship between a screw and a wedge. Diagram.
1M20.35	big screw as incline plane
1M20.35	big screw	A large wood screw and nut (6"-1) show the relationship between a screw and incline.
1M20.40	levers
1M20.40	levers	Show the three classes of levers with a mass, bar, pivot, and spring scale.
1M20.40	levers	The three classes of simple levers.
1M20.40	levers	A torque bar, spring scale, and pivot are used to illustrate the three classes of levers.
1M20.45	body levers	Construction and use of a device representing body levers.
1M20.60	wheel and axle	The PIC-Kit used for demonstrating simple machines.
1M20.99	black box	Hide a mechanism in a box and try to deduce what is inside.

1M40. Conservation of Energy

PIRA #

Demonstration Name

Abstract

1M50. Mechanical Power

PIRA #

Demonstration Name

Abstract

[:Demonstrations:Demonstrations]

[:Instructional:Home]

-  ⇤ ← Revision 3 as of 2010-10-29 18:52:40 → 
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+   ← Revision 4 as of 2010-10-29 19:02:27 → ⇥
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+||1M10.10||	shelf and block	Lift a block up and set it on a shelf.||
||1M10.15||	block on table||	||
||1M10.16||	carry a block||	Just carry a block around.||
||1M10.20||	pile driver||	Drive a nail into a block of wood with a model pile driver.||
||1M10.20||	pile driver||	A model pile driver pounds a nail into wood.||
||1M10.20||	pile driver||	A 10 lb block guided by side rails falls onto a nail in wood.||
||1M10.20||	pile driver||	Drive a nail into a block of wood with a model pile driver.||
||1M10.20||	pile driver||	Drop a weight onto a nail in wood.||
||1M10.25||	pile driver with soda cans||	Smash pop cans with a pile driver.||
||1M10.99||	work to remove tape||	Pull off a piece of tape stuck to the lecture bench.||
-Line 18:
+Line 29:
+||1M20.01||	simple machines||	A collection of simple machines is shown.||
||1M20.10||	pulleys||	An assortment of large pulleys can be rigged several ways.||
||1M20.10||	pulleys||	Demonstrate what you have.||
||1M20.11||	pulley advantage||	Place a mass on a string over a pulley and hold a spring scale at the other side. Repeat with a mass hanging from a single pulley in a loop of string.||
||1M20.11||	pulley advantage||	Hang a 10 newton weight on a string passing over a pulley and measure the force with a spring scale, then hang the weight from a free running pulley.||
||1M20.13||	pulleys||	Pedagogy. Good diagram.||
||1M20.15||	pulley and scales||	Same as encyclopedia disc 04-05.||
||1M20.15||	pulley and scales||	This is a counter intuitive demonstration. A frame containing a spring scale and pulley hangs from another spring scale. Look it up.||
||1M20.20||	bosun's chair||	Use a single pulley to help the instructor go up.||
||1M20.20||	bosun's chair||	Using a block and tackle, the lecturer ascends. Full of pedagogical hints on how to do this effectively.||
||1M20.20||	bosun's chair||	The instructor "lifts himself up by the bootstraps".||
||1M20.25||	monkey and bananas||	A wind up device and equal mass are placed at either ends of a string placed over a pulley.||
||1M20.25||	monkey and bananas||	A yo-yo and counterweight are suspended over a pulley. The counterweight and yo-yo rise and fall together.||
||1M20.25||	monkey and the coconut||	A steel yo-yo and steel counterweight suspended over two low friction bearings.||
||1M20.25||	climbing monkey||	A yo-yo and a counterweight are on opposite sides on a pulley. As the yo-yo goes up and down, so does the counterweight.||
||1M20.25||	climbing monkey||	A steel yo-yo on one side of a pulley and a counterweight on the other. As the yo-yo goes up and down, so does the counterweight.||
||1M20.26||	climbing monkey||	Two equal masses are hung over a pulley, one of which is equipped with a cord winding mechanism.||
||1M20.27||	windlass||	A model windlass is described.||
||1M20.28||	climbing pirate||	String is wrapped around two different sized pulleys on a common axis.||
||1M20.29||	fool's tackle||	A diagram of the "fools tackle" is shown.||
||1M20.30||	incline plane||	||
||1M20.30||	screw and wedge||	A long triangular piece of sailcloth is wound around a mailing tube to show the relationship between a screw and a wedge. Diagram.||
||1M20.35||	big screw as incline plane||	||
||1M20.35||	big screw||	A large wood screw and nut (6"-1) show the relationship between a screw and incline.||
||1M20.40||	levers||	||
||1M20.40||	levers||	Show the three classes of levers with a mass, bar, pivot, and spring scale.||
||1M20.40||	levers||	The three classes of simple levers.||
||1M20.40||	levers||	A torque bar, spring scale, and pivot are used to illustrate the three classes of levers.||
||1M20.45||	body levers||	Construction and use of a device representing body levers.||
||1M20.60||	wheel and axle||	The PIC-Kit used for demonstrating simple machines.||
||1M20.99||	black box||	Hide a mechanism in a box and try to deduce what is inside.||

fw: Diff for "WorkEnergy"

Work and Energy

1M10. Work

1M20. Simple Machines

1M30. Non-Conservative Forces

1M40. Conservation of Energy

1M50. Mechanical Power