1A10.20 Mass A calibrated mass.

1A10.30 Length A calibrated meter.

1A10.33 History of the Standard Meter An interesting historical article from the AJP.

1A10.35 Painted Meter Stick Meter stick with visible marks for cm units.

1A10.40 Time Metronome.

1A10.48 Orrery Show sidereal time.

1A10.51 Pan Balance The familiar laboratory balance.

1A10.55 Density Aluminum and wood cubes to discuss mass and volume.

1A20.11 Binomial Distribution Hex stat  Ball bearings are scattered to form a binomial distribution.

1A20.20 Coin Flip  Tally up a series of coin tosses

1A40.11 Vectors Blackboard vector.

1A40.30 Vector Addition and Subtraction Three blackboard vectors.

1C10.10 Truck on a Tablecloth A toy truck rolls across a moving tablecloth.

1C10.20 Nearly Constant Velocity Dynamic Cart A cart travels across a long track.

1C10.25 Constant Velocity Air Track Glider Frictionless glider on an air track.

1C20.10 Penny and Feather An evacuated tube contains a coin and feather.

1C20.20 Strings of Beads Beads are spaced equal times or in equal spaces.

1C20.30 Inclined Air track Photocell graphs velocity versus time.

1C20.44 Galileo's Incline A metronome ticks as a balls rolls.

1C30.55 Catch a Stick Drop and catch a meter stick to find your reaction time.

1C30.56 Picket Fence Graph the velocity during freefall acceleration

1D10.10 Rotation objects  Irregular objects serve as rotation props to show the radian, tangent and angle vectors.

1D10.20 Inversor A device transforms circular motion into two linear motion.

1D10.40 Bike Wheel Bike wheel used as a prop.

1D10.50 Ball on a Turntable Project the shadows of circular and linear motion.

1D15.20 Cycloid Generator A mechanical device traces the path of a cycloid.

1D15.15 Kick Ball Kick a ball.

1D15.50 Cycloid Track Two balls released at different heights meet equally along a cycloid track.

1D15.55 High Road Low Road Two balls race along different paths.

1D15.45 Three Rails Three balls race different paths.

1D40.10 Walk the Boat A person walks forward in a lightweight boat that slides backward.

1D40.14 Throw Toy An irregular shaped rubber toy is tossed in the air.

1D40.35 Center of Mass of the Earth/Moon Masses with 60:1 ratio hang off balanced stick.

1D40.50 Double Pendulum Glider A pendulum swings a glider.

1D50.20 Cork on a String Cork on a string swings in a circle.

1D50.40 Pail of Water Swing a bucket of water overhead.

1D50.56 Rotation Apparatus Computerized turntable with slider.

1D50.70 Rolling Chain A bike chain becomes rigid when spinning.

1D52.10 Flattening the Earth Spin a flexible globe.

1D52.17 Water Vortex A water vortex forms when a jug is spun.

1D52.20 Water Lens Spin a pan of water to form a parabolic lens.

1D52.32 Bubble in Water Spin a flat disk of water with an air bubble on the overhead.

1D52.37 Centrifuge A hand crank spins test tubes with mixture.

1D55.10 Cork on a String A mass on a string is whirled in a circle overhead.

1D55.11 Broken Ring A ball rolls around a loop with a gap.

1D55.12 Mass on a Spring A mass on a spring is whirled in a circle overhead.

1D55.30 Merry-Go-Round Spin a platter and accelerate a puck.

1D60.05 Simple Ball Simply toss a tennis ball.

1D60.10 Howitzer Ball is fired from a moving howitzer.

1D60.20 Simultaneous Fall One ball drops and another is launched with both vertical and horizontal motion.

1D60.30 Monkey and Dart Hit a fleeing monkey.

1D60.40 Water Parabola Shadow project a squirting water nozzle.

1D60.72 Vertical Billiards The Cue ball triggers the shot into freefall.

1E10.10 Truck and Tablecloth Pull a tablecloth from under a moving truck.

1E10.11 Parallel Tracks Two tracks translate as independent coordinate systems.

1F20.10 Inertia Ball Break string supports of a heavy ball.

1F20.30 Pull a Table Cloth Yank a tablecloth out from under a dinner setting.

1F20.50 Shift the track under the Dynamic Cart Shift a track under a stationary cart.

1F30.10 Persistence of Motion Give a push to a dynamic cart

1F30.21 Water Hammer Pound a glass tube with degassed water.

1F30.50 Track on a Track A cart continues to move after the track is stopped.

1G10.10 Air Track Give a push to an air track glider.

1G10.11 Graph Acceleration Graph acceleration.

1G10.13 Dynamic Cart and Incline Use a cart on an incline with a mass and pulley.

1G10.25 Acceleration Block Block is pulled by a mass on string over a pulley.

1G10.30 Mass and Spring Scale  A spring scale reacts to the force of a hand.

1G10.40 Atwood's Machine Blackboard pulley and masses.

1G10.53 Dynamic Track Push a frictionless mass-cart with a force.

1G20.41 Freefall Spring Scale An extended spring scale contracts in freefall.

1G20.45 Dropped Slinky An extended slinky contracts in freefall but the end remains fixed.

1H10.02 Burning String A balance reacts to a mass on a spring .
1H10.10 Push Me Pull You Human momentum carts are used to push and pull.

1H10.13 Firecracker Sandwich A firecracker explodes between two gliders.

1H10.20 Newton's Sailboat A fan cart blower can't propel its own sail.

1H11.02 Burning String A balance reacts to a mass on a spring .

1J10.10 Center of  Mass A flat shape is hung by two different points.

1J10.30 Meter Stick on Fingers Fingers slide together under a meter stick.

1J11.15 Tipping Block on Incline Raise the end of a board to slide a block.

1J11.20 Leaning Tower of Lire Blocks are stacked and overhang an edge.

1J11.50 Double Cone Raise a double cone along inclined spindles.

1J20.22 Balance Bird A bird with leaded wingtips balances on its beak.
1J20.23 Curious George Curious George rides his bicycle on a tight rope.

1J20.60 Wine Butler A slanted board balances upright.

1J30.20 Tension in a String A spring scale is pulled by two masses but the scale reads only one mass.

1J30.30 Break the String Push lightly onto a hinge and break a thick string.
1J30.40 Block on an Incline Plane A block on an incline is balanced by masses and pulleys.
1J30.50 Normal Force  A pan balance placed on an incline reads the normal force.

1J40.10 Torque Bar Slide a mass along a rod and increase the torque.

1J40.20 Torque Beam Hang different masses from lever arms.

1J40.40 Loaded Beam Hang weights at various points along a beam .

1J40.60 Slipping Ladder March a mass up the rungs of a ladder.

1K10.10 Sliding Block Pull at various angles on a block with a spring scale.

1K10.20 Slipping Ladder Place a weight onto different ladder rungs.

1K10.30 Walk the Spool A spool will wind, unwind or slide when pulled at different angles.

1K10.50 Feeble Disc A disc with lead placed off center rolls uphill.

1K20.10 Friction Blocks Various surfaces are used to slide down an incline.

1K20.30 Static vs. Sliding Friction Pull a cinder block with a spring scale.

1L20.10 Gravitational Well A lead ball distorts a rubber diaphragm.

1L20.17 Orbits in a Funnel Swirl a ball inside a large funnel.

1L20.40 Conic Sections A cone is sliced by a plane to produce an ellipse, a hyperbola and a parabola.

1L20.50 Ellipse Drawer A loop of string surrounds two pegs.

1M20.10 Pulleys Use a simple pulleys to construct a block and tackle..

1M20.40 Lever

1M40.10 Nose Basher A bowling ball pendulum threatens the nose.

1M40.15 Galileo Pendulum A stopped pendulum.
1M40.35 Three Rails Three balls race different paths.

1M40.20 Loop the Loop A ball drops from a height and traverses a vertical loop.
1M40.50 Glider and Spring A compressible and extensible spring pushes and pulls a glider.

1N20.10 Air track Glider A glider moves with constant momentum.

1N20.11 Dynamic Cart A cart moves with nearly constant momentum.

1N20.13 Firecracker Sandwich A firecracker explodes between two gliders.

1N22.10 Red Ball Express A rocket car gets its thrust from a CO2 fire extinguisher..

1N22.20 Water Rocket A bike pump fires a water bottle rocket.

1N30.10 Newton's Cradle A cradle holds six collision balls.

1N30.30 Air Track Collisions Show elastic collisions.

1N30.60 Basketball and Tennis Ball A tennis ball and a basketball collide together.
1N30.65 Dynamic Cart Collisions Show both elastic and inelastic collisions with varying unequal masses.

1Q10.20 Torsion Pendulum The moment of inertia is related to the period of oscillation.

1Q10.41 Whirlygig Adjust the angular momentum of a long bar.

1Q10.66 Bike Wheel and String Turn a wheel slow or fast and break by pulling a string.

1Q10.40 Racing Ball, Hoop and Disk A ball, hoop and disk race down an incline.

1Q20.10 Adjustable Rotational Energy A falling mass spins a weighted bar.

1Q20.30 Spool on an Incline A spool rolls slowly down an incline but quickly across the lecture bench.

1Q20.50 Hinged Stick/Falling Chimney A ball drops into a cup when a stick falls.

1Q20.52 Two Disks Drop two disks. One falls.  The other rotates and falls.

1Q40.10 Ice Skater Hold weights and fold arms while on a spinning stool.

1Q40.25 Whirligig Spin a cork overhead and raise a weight.
1Q40.26 Hoberman Sphere Pull a string to change the volume of a rotating sphere.

1Q40.30 Rotating Stool and Bicycle Wheel Invert and revert a spinning wheel while sitting on a stool.

1Q40.46 Bowling Frictional transfer from sliding to rolling.

1Q40.56 Acrobatic Astronauts Video of weightless astronauts toying with the angular momentum of their body form.

1Q40.63 Flywheel on a Stick An unbalanced flywheel wobbles when it rotates.

1Q40.70 Funnel Roll a marble down a funnel.

1Q40.80 Hero's Engine Steam from tangential nozzles acts like a lawn sprinkler.

1Q50.00 Toy Gyro gyro will show precession and  nutation about a pivot.

1Q50.10 Gyro With Counterweights balanced gyro will precession and nutation about a pivot.

1Q50.23 Precession A spinning bike wheel hangs from a wire.

1Q50.30 Mitac Gyro Add weights to a large motorized demo gyro.

1Q50.45 Air Bearing Gyro A spinning ball precession about an air bearing.

1Q60.15 Humming Top A toy top that is pumped up.

1Q60.16 Celt An S shaped object has unique rotational behavior.

1Q60.30 Tippe Top A top that flips over.

1Q60.40 Tossing Block Toss a block into the air to tumble about the three principle axis.