Newton's First Law

PIRA classification 1F

28 Demonstrations listed of which 12 are grayed out.

Grayed out demonstrations are not available or within our archive and are under consideration to be added.

1F10. Measuring Inertia

PIRA #	Demonstration Name	Abstract
1F10.10	Inertia Balance	Place masses on a platform supported by horizontal leaf springs.
1F10.12	Inertia Oscillation	A puck between two springs rolling on Dy-lite beads is timed with several different masses.
1F10.13	Inertia Balance w/Strobe	Use a stroboscope to measure the period of an inertia balance.
1F10.20	Inertia Bongs	Two large cylinders or blocks are suspended, one wood (3Kg) and one iron or steel (50Kg). Students compare displacements when struck by a hammer or just push the things around.
1F10.25	Unknown Bricks	A lead brick and a wooden block of the same size and dimensions are both rapped in aluminum foil to looks the same, are then hit with a hammer. Then toss the wooden block to a student.
1F10.30	Judging Inertial Mass	A blindfolded volunteer compares a mass on a string with a mass on a roller cart.

Anchor(InertiaofRest)

1F20. Inertia of Rest

PIRA #	Demonstration Name	Abstract
1F20.10	Inertia Balls	A heavy ball is suspended by a string with identical strings tied from the bottom. Give a quick jerk to one and pull the other slowly.
1F20.13	Inertia Stick	A long stick is supported from rings of filter paper at each end. Break the filter paper with a pull or the stick with a jerk.
1F20.15	Inertia Block	A 50 lb or larger mass is mounted on rollers. A thread will pull it but a cotton cord rope can be broken with a quick jerk.
1F20.20	Smash Your Hand	Place a lead block on your hand and hit it with a hammer.
1F20.22	Hit the Nail on the Head	Drive a nail into a large block of wood placed on a student's head.
1F20.25	Bed of Nails	See 1K30.10, A bed of nails is placed on the chest before smashing the block with a sledge.
1F20.26	Vibrograph	An optical lever arrangement for magnifying small displacements of a large mass when the table is hit with a hammer.
1F20.30	Tablecloth Pull	Pull the tablecloth out from under a place setting or a beaker of water
1F20.33	Inertia Cylinder	Stand a 3/4" x 6" aluminum cylinder on a sheet of paper. Jerk the paper out from under the cylinder.
1F20.34	Card snap	Snap a card out from under a tall object, e.g., a shipping tag from under a balanced claw hammer.
1F20.35	Eggs and Pizza Pan	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.
1F20.40	Stick on Wine Glasses	Stick needles in the ends of a 3/4" sq x 4' clear pine bar. Place the needles on wine glasses full of water and break the stick with an iron bar.
1F20.50	Shifted Air Track Inertia	Support an air track on wheels. Move the air track under an air glider.
1F20.61	Inertia Cart	A cart has a pivoting arm with different masses but the same volume at the ends. The greater mass lags behind as the cart is accelerated.
1F20.62	String of Weights	A string of weights connected by springs shows uneven deformation when jerked.

Anchor(InertiaofMotion)

1F30. Inertia of Motion

PIRA #	Demonstration Name	Abstract
1F30.10	Persistence of Motion (air track)	A single cart on the air track.
1F30.11	Air Table Puck	Air table with a puck.
1F30.13	CO2 Block	A large piece of dry ice on a flat formica top wetted with alcohol.
1F30.21	Water Hammer	A tube is evacuated except for some water. When the tube is stopped suddenly, the water strikes the end of the tube with a click.
1F30.30	Cart on Cart on Cart	A small cart on a skateboard on a large rolling cart comes to a sudden stop.
1F30.30	Cart on a Cart	A small cart is placed on a larger one. When the larger cart is stopped, the smaller one continues.
1F30.50	Pencil and Plywood	Place a pencil in a brass tube hooked to a fire extinguisher. Fire the pencil into a 1/2" plywood board.

[:Demonstrations:Demonstrations]

[:Instructional:Home]

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+||<:25%>[:PiraScheme#Mechanics: Table of Mechanics]||<:25%>[:RelativeMotion: Mechanics (1E): Relative Motion]||<:25%>[:Newtons2NDLaw: Mechanics (1G): Newton's Second Law]||<:25%>[:Demonstrations:Lecture Demonstrations]||
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-'''1F10. Measuring Inertia '''
+Demonstrations listed of which 12 are grayed out.

||<#dddddd> Grayed out demonstrations are '''not''' available or within our archive and are under consideration to be added.||

= 1F10. Measuring Inertia =
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-||1F10.10||	inertia balance||	A torsion pendulum has cups that can be loaded with various masses.||
||1F10.10||	inertia balance||	A light torsion pendulum can be loaded with various masses.||
||1F10.10||	inertia balance||	Torsion pendulum as an inertia balance.||
||1F10.11||	inertia balance||	A horizontal leaf spring as an inertial balance.||
||1F10.11||	inertia balance||	Place masses on a platform supported by horizontal leaf springs.||
||1F10.12||	inertia oscillation||	A puck between two springs rolling on Dy-lite beads is timed with several different masses.||
||1F10.13||	inertial equal arm balance||	Publication of an unfinished demonstration, but up front about it. Shows circuit diagram for a indicator for a horizontal Roberval type balance on an acceleration cart.||
||1F10.13||	inertia balance||	Measure the period of a commercially available (?) inertia balance by using a stroboscope.||
||1F10.20||	inertia bongs||	Hit hanging 2"x4"x10" blocks of wood and steel with a hammer.||
||1F10.20||	inertia bongs||	Two large cylinders are suspended, one wood (3Kg) and one iron (50Kg). Students compare displacements when struck by a hammer or just push the things around.||
||1F10.25||	foam rocks||	Hit a real rock (granite) then a foam rock (looks like granite) with a hammer. Throw a form rock at some students.||
||1F10.25||	foam rock||	Hit a real rock and then a foam rock with a heavy mallet.||
||1F10.30||	judging inertial mass||	A blindfolded volunteer compares a mass on a string with a mass on a roller cart.||
+||1F10.10||Inertia Balance||Place masses on a platform supported by horizontal leaf springs.||
||<#dddddd>1F10.12||<#dddddd>Inertia Oscillation||<#dddddd>A puck between two springs rolling on Dy-lite beads is timed with several different masses.||
||1F10.13||Inertia Balance w/Strobe||Use a stroboscope to measure the period of an inertia balance.||
||<#dddddd>1F10.20||<#dddddd>Inertia Bongs||<#dddddd>Two large cylinders or blocks are suspended, one wood (3Kg) and one iron or steel (50Kg). Students compare displacements when struck by a hammer or just push the things around.||
||1F10.25||Unknown Bricks||A lead brick and a wooden block of the same size and dimensions are both rapped in aluminum foil to looks the same, are then hit with a hammer. Then toss the wooden block to a student.||
||1F10.30||Judging Inertial Mass||A blindfolded volunteer compares a mass on a string with a mass on a roller cart.||

[[Anchor(InertiaofRest)]]
= 1F20. Inertia of Rest =

||<:10%>'''PIRA #'''||<:>'''Demonstration Name'''||<:60%>'''Abstract'''||
||1F20.10||Inertia Balls||A heavy ball is suspended by a string with identical strings tied from the bottom. Give a quick jerk to one and pull the other slowly.||
||<#dddddd>1F20.13||<#dddddd>Inertia Stick||<#dddddd>A long stick is supported from rings of filter paper at each end. Break the filter paper with a pull or the stick with a jerk.||
||<#dddddd>1F20.15||<#dddddd>Inertia Block||<#dddddd>A 50 lb  or larger mass is mounted on rollers. A thread will pull it but a cotton cord rope can be broken with a quick jerk.||
||1F20.20||Smash Your Hand||Place a lead block on your hand and hit it with a hammer.||
||1F20.22||Hit the Nail on the Head||Drive a nail into a large block of wood placed on a student's head.||
||1F20.25||Bed of Nails||See 1K30.10, A bed of nails is placed on the chest before smashing the block with a sledge.||
||1F20.26||Vibrograph||An optical lever arrangement for magnifying small displacements of a large mass when the table is hit with a hammer.||
||1F20.30||Tablecloth Pull||Pull the tablecloth out from under a place setting or a beaker of water||
||1F20.33||Inertia Cylinder||Stand a 3/4" x 6" aluminum cylinder on a sheet of paper. Jerk the paper out from under the cylinder.||
||1F20.34||Card snap||Snap a card out from under a tall object, e.g., a shipping tag from under a balanced claw hammer.||
||<#dddddd>1F20.35||<#dddddd>Eggs and Pizza Pan||<#dddddd>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.||
||<#dddddd>1F20.40||<#dddddd>Stick on Wine Glasses||<#dddddd>Stick needles in the ends of a 3/4" sq x 4' clear pine bar. Place the needles on wine glasses full of water and break the stick with an iron bar.||
||<#dddddd>1F20.50||<#dddddd>Shifted Air Track Inertia||<#dddddd>Support an air track on wheels. Move the air track under an air glider.||
||<#dddddd>1F20.61||<#dddddd>Inertia Cart||<#dddddd>A cart has a pivoting arm with different masses but the same volume at the ends. The greater mass lags behind as the cart is accelerated.||
||<#dddddd>1F20.62||<#dddddd>String of Weights||<#dddddd>A string of weights connected by springs shows uneven deformation when jerked.||

[[Anchor(InertiaofMotion)]]
= 1F30. Inertia of Motion =

||<:10%>'''PIRA #'''||<:>'''Demonstration Name'''||<:60%>'''Abstract'''||
||1F30.10||Persistence of Motion (air track)||A single cart on the air track.||
||1F30.11||Air Table Puck||Air table with a puck.||
||<#dddddd>1F30.13||<#dddddd>CO2 Block||<#dddddd>A large piece of dry ice on a flat formica top wetted with alcohol.||
||<#dddddd>1F30.21||<#dddddd>Water Hammer||<#dddddd>A tube is evacuated except for some water. When the tube is stopped suddenly, the water strikes the end of the tube with a click.||
||1F30.30||Cart on Cart on Cart||A small cart on a skateboard on a large rolling cart comes to a sudden stop.||
||1F30.30||Cart on a Cart||A small cart is placed on a larger one. When the larger cart is stopped, the smaller one continues.||
||<#dddddd>1F30.50||<#dddddd>Pencil and Plywood||<#dddddd>Place a pencil in a brass tube hooked to a fire extinguisher. Fire the pencil into a 1/2" plywood board.||
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-'''1F20. Inertia of Rest '''
||<:10%>'''PIRA #'''||<:>'''Demonstration Name'''||<:60%>'''Abstract'''||
1F20.10	inertia balls	Break the string on the top or bottom of a suspended mass.
1F20.10	inertia balls	Two heavy iron balls are hung separately between lengths of string. Pull on one and jerk on the other.
1F20.10	inertia balls	Two steel balls are suspended by strings with identical strings tied from their bottoms. Give a quick jerk to one and pull the other slowly.
1F20.10	inertial balls	Break the string on the top or bottom of a suspended mass.
1F20.10	inertia ball	A mass is suspended between two cords. Pull slowly or jerk on the lower cord.
1F20.11	bowling ball inertia balls	Replace the standard 6 cm balls with bowling balls for increased visibility.
1F20.12	inertia balls	One mass is hung from a string and another mass hung below it. Jerk the lower mass to break one of the strings.
1F20.13	inertia stick	A long stick is supported from rings of filter paper at each end. Break the filter paper with a pull or the stick with a jerk.
1F20.15	inertia block	A 50 lb mass is mounted on rollers. A thread will pull it but a rope can be broken with a jerk.
1F20.16	inertia block	Tie a loop of 7/16" braided cotton cord through a hole in a 2"x4"x10" steel block. Pull and jerk with a hammer.
1F20.16	inertia block	A length of rope is tied to a 10 lb. block. A pull with a hammer will move the block but a jerk will break the rope.
1F20.16	inertia block	A rope is attached between a heavy iron ball and a hammer head. A fast swing of the hammer takes up the slack and breaks the rope without moving the ball.
1F20.18	inertia balls - analysis	For the more advanced reader. The system may be treated as a forced harmonic oscillator and the classical results of the demonstration are verified analytically. Surprises emerge.
1F20.20	smash your hand	Place a lead block on your hand and hit it with a hammer.
1F20.20	smash your hand	Hit a 10 lb. brick with a hammer while it rests on your hand.
1F20.21	smash your hand, etc.	Hit a 10 lb block on the hand or a 50 lb brick on the stomach with a hammer. Pound nails into a 50-75 lb wood block placed on a student's head.
1F20.22	hit the nail on the head	Place a physics book, then a 6"x6" block of wood on a student's head and drive a nail into the block.
1F20.22	hit the nail on the "head"	Drive a nail into a large block of wood placed on a student's head.
1F20.25	smash the block	An analysis of smashing a block on a volunteer sandwiched between two nail beds. Safety issues are discussed.
1F20.25	smash the block	A bed of nails is placed on the chest before smashing the block with a sledge.
1F20.26	vibrograph	An optical lever arrangement for magnifying small displacements of a large mass when the table is hit with a hammer.
1F20.30	the tablecloth pull	Pictures and a few hints.
1F20.30	tablecloth pull	Pull the tablecloth out from under a place setting.
1F20.30	tablecloth pull	Pull a low friction tablecloth from under a place setting.
1F20.33	inertia cylinder	Stand a 3/4" x 6" aluminum cylinder on a sheet of paper. Jerk the paper out from under the cylinder.
1F20.33	inertia cylinder	Jerk a sheet of paper out from under a thin steel cylinder.
1F20.34	card/coin snap	Snap a card out from under a tall object, e.g., a shipping tag from under a balanced claw hammer.
1F20.34	card/coin snap	Several inertia tricks.
1F20.34	card/coin snap	Snap a piece of cardboard from under a steel ball.
1F20.35	eggs and pizza pan	Set a pizza pan on three 2l beakers full of water, stand paper cylinders with eggs at the tops above the beakers, knock out the pizza pan.
1F20.35	blocks and broomstick	Egg on a spool, on a pie tin, on a beaker of water. Flex broom and knock out pie tin.
1F20.35	eggs and pizza pan	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.
1F20.40	stick on wine glasses	Stick needles in the ends of a 3/4" sq x 4' clear pine bar. Place the needles on wine glasses full of water and break the stick with an iron bar.
1F20.50	shifted air track inertia	Support an air track on wheels. Move the air track under an air glider.
1F20.50	shifted air track inertia	Move the air track under an air track glider.
1F20.60	loose hammer head	A hammer handle may be tightened by pounding on the far end of the handle.
1F20.61	inertia cart	A cart has a pivoting arm with different masses but the same volume at the ends. The greater mass lags behind as the cart is accelerated.
1F20.62	string of weights	A string of weights connected by springs shows uneven deformation when jerked.
1F20.64	inertia of liquids	There are two horizontal glass tubes, one with a cork cylinder and the other with a lead cylinder. Strike the stopper at one end of the glass tubes with a hammer and watch the direction of the cylinders.


'''1F30. Inertia of Motion '''
||<:10%>'''PIRA #'''||<:>'''Demonstration Name'''||<:60%>'''Abstract'''||

fw: Diff for "Newtons1STLaw"

Newton's First Law

1F10. Measuring Inertia

1F20. Inertia of Rest

1F30. Inertia of Motion