Demo Kit in a Box
| Index | Electrostatics Box | Electrodynamics Box | Mechanics Box | Sound/Waves Box | Optics Box |
| PIRA 200 = Mechanics PIRA Bibliography = Mechanics |
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Topic |
Concept |
Activity |
Links and Resources |
| Linear Kinematics : | Constant Velocity | Constant Velocity Car | meter stick, stop watch, rock socks, phone apps |
| Vector Addition | Construction: magnetic, flexible, solid, inexpensive, durable, folding ruler | ||
| CD Hover-craft Use : Idaho State |
PIRA Bibliography Construction: Video, Science Bob |
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| Constant Acceleration | Constant Acceleration Car | meter stick, stop watch, rock socks, phone apps | |
| Washers on a string (constant distance vs constant time) | dx=30, 60, 90, 120, 150, 180 dt=4.9, 19.6, 44.1, 78.4, 122.5, 176.4 |
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| Drop vs Fling (horizontal veloicty) with pennies on a card | |||
| Free fall: reduce acceleration using Inclined plane, D-channel etc. | PIRA 200 : PIRA Biblio-1 and Biblio-2 Use : Purdue, NCSU |
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| Accelerometer Use: Idea 1, Idea 2 |
1) water container, thread, cork 2) Helium balloon 3) Protractor, clear tube, glue, water |
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| Non-Newtonian | Silly-putty, cornstartch and water [2:1] | ||
| Inertia | Rocket balloons | ||
| Flick card with mass on top | Vary "change" on the card | ||
| Inertia Rods | meter sticks and clay | ||
| Friction | Air friction: Filter drop (flat + balled) | ||
| Fast vs slow "flick" of card with mass on top | |||
| Friction block: kinetic less than static friction | |||
| Inertia: table cloth pull | |||
| Interleave phonebook pages or cards | |||
| Chinese finger trap | |||
| Momentum : | Impulse | Q-tip and a straw: (marshmallow shooter) |
Purchase: Amazon |
| Impulse equals change in momentum | Happy/Unhappy balls: bounce, roll down incline to hit a block, swing to hit a block (etc.) Use : Univ of Iowa, Brown Univ |
PIRA 200 : PIRA Bibliography |
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| Egg Toss (sheet catch or plate catch) | |||
| Conservation | Ball drop (position lighter ball on heavier ball) | Astro-blaster | |
| Energy : | Conservation | Gravitational: Ball toss, Pendulum swing | |
| Elastic: Ball bounce, rubber bands, mass on spring etc. | |||
| Elastic: Dropper-popper Use: SERC, Educational Innovations |
PIRA Bibliography Purchase: Arbor Scientific, Educational Innovations Make from raquetball |
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| Energy conversion: rattle-back, swinging mass on spring (bonus: add torsional oscillation) | |||
| Momentum & Energy Conservation | Newton's Cradle | Video demo links | |
| Rotational Kinematics : | Motion | Rolling object: cycloid generator | |
| Drawing an ellipse | |||
| Center of Mass | Stack of blocks [dominos] | ||
| Balance nine nails on a nail | |||
| Real object toss: rotation about C.M. plus translation of C.M. | Make and use different object. Video Analysis |
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| Moment of Inertia | Inertia rods | meter sticks and clay Purchase: Arbor |
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| Rolling objects: solid ball, hollow ball, solid disk, ring etc. | |||
| Torque | Acceleration of rod: free-fall vs rotating about one end (place pennies at different locations) | ||
| Tippy-top | Purchase: Amazon | ||
| Centripital Acceleration | Turn table (lazy susan) with objects at different radii (static vs kinetic friction) | ||
| Swinging water bucket | |||
| Waiter's Tray Use : NCSU, SMU, Simon Fraser |
PIRA 200 : PIRA Bibliography Construction: Physics Central |
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| Whirlagig: use gravitation force to provide radial acceleration (Idea 2) | |||
| Penny on a coat hanger | |||
| Penny in a balloon | Velodome - bike in a sphere | ||
| Tangential Velocity | Mass on a string: cut string for clearer release | Video Analysis | |
| Broken ring with ball | |||
| Angular Momentum | Spinning disk (Frisbee) | ||
| Gyroscope | |||
| Bicycle wheel | |||
| Oscillations : | Waves(pulses) | Slinky: tangential and longitudinal pulses | |
| Simple Harmonic Oscillation (SHO) | Pendulum: adjust length Spring with mass: adjust mass |
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| Pressure : | Force and Area | Standing on eggs (or use 3oz cups) | |
| Bernoulli | Bernoulli challenge: remove ping pong ball from 3oz cup | ||
| Wind around and between paper strip(s) | |||
| Ping pong ball on straw | |||
| Scaling | Scaling cube | ||
| Vector vs scalors | |||
| Balls (tennis, raquet etc.) | Astro-Blaster | Impulse setup | Swinging Cup |
| Cat (C.M. toy) | Happy & Unhappy Balls | Hoop, Ball & Disk | |
| Rattle Back | Dropper Popper | Silly Putty - Non-Newtonian Fluid | Spring and Mass |
| Constant Velocity Car | Ping Pong Ball | Pennies & Index Cards | Mass on String |
| Straw Shooter | FreeFall setup | Extra mass - Clay | Top (Flip Top=Tippy Top) |
| Constant Accel Car | Coffee Filters | [meter stick, erasor] | Gyroscope |
Remember: Don't Steal the Joy of Discovery |