Compiled November 5, 1999
Chapter 1: Preludes |
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M-a1a | Meter Standard | A replica of the platinum-iridium bar in Paris that was the international standard for length before 1960. Video Camera needed for auditorium use. | |
M-a6a | Powers of Ten | "Powers of Ten" is a 9 minute film spanning scales from the edge of the universe to the sub-atomic. | |
Chapter 2: A Mathematical Toolbox |
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M-c1a | Tank on moving sheet | A battery powered tank runs at constant speed on a moving paper to show how velocities add and subtract. | |
Chapter 3: Rectilinear Motion |
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M-c1b | Linear Air Track: Position vs. Time | A glider glides down the 5 m air track while evenly spaced photogates record the elapsed time. | |
M-c4a | Motion Detector and Student | A student walks back and forth in front of an ultrasonic motion detector, and a real-time graph of the displacement (and/or veloctiy and/or acceleration) versus time is projected on the screen. | |
M-c3a | Timed Free Fall | A metal ball is dropped from first 1m, then from 4m into a catch bucket. A precise digital timer records the amount of time needed to fall those respective distances. | |
M-c2a | Dime and Feather Tube | A penny and a feather fall freely inside a glass cylinder that can be evacuated. | |
Chapter 4: Kinematics II: Motion in Two and Three Dimensions |
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M-d6e | Shoot the Monkey | An air-gun shoots at a monkey, released when the air-gun is fired; the bullet hits the monkey in mid-air. Have auditorium and classroom versions. | |
M-d6d | Balls Shot and Dropped | A ball is dropped and simultaneously another is projected horizontally; they hit the floor at the same time. Very visible | |
M-d6c | Jumping Block -- Wheeled Cart | A ball projected vertically upward from a moving air track glider falls back into the muzzle. (UNDER REPAIR) | |
M-d6g | Range of a Gun | Shoot at 45, then calculate 30 or 60 and place the target. | |
M-c1a | Tank on moving sheet | A battery powered tank runs at constant speed on a moving paper to show how velocities add and subtract. | |
M-d5a | Orbit Ball | This consists of a large and a small ball attached to opposite ends of a string which passes through a metal handle. The light ball is twirled and the centripetal force is provided by the weight of the heavy ball. | |
M-d1f | Balls on Rotating Disk | A disc with two balls mounted at different radii rotates at varying speeds. A third ball may be placed in the center if disk is horizontally mounted. Both orbital and spin rotations may be seen. | |
Chapter 5: Newton's Laws of Motion |
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M-f2a | Inertia Masses | A 100 g mass is suspended from a 1 kg mass which is suspended from a crossbar. A sharp downward pull breaks the lower thread; a slow pull the upper thread. | |
M-f2b | Hammered Blocks | The bottommost of a stack of blocks, when struck sharply, will slide to the side while the upper blocks remain in place. | |
M-f3a | Glider on Level Air Track | A glider on a level air track persists in gliding. | |
M-g1d | Fan Propelled Cart | Measure the final speed of a fan-propelled (constant acceleration) cart whose mass can be varied. | |
M-h1c | 3rd Law with Scales | Pull on two coupled spring scales with springs of equal or unequal strength. | |
M-j3a | Suspended Block | A 1 kg mass rests on a 3-4-5 incline (e.g. incline angle = arctan(3/4)). Forces parallel and perpendicular to the incline will support the mass in mid-air when the incline is removed. | |
M-m2a | Simple Pulley | Show a simple pulley in equilibrium | |
M-j3c | Rope and Three Students | Two large strong students pull on the ends of a rope and a small student pushes down in the middle. | |
M-g1c | Atwood's Machine | Two equal masses are hung from a pulley. A small amount of mass is transferred from one side to the other. | |
M-k2a | Friction Cars | The forces required to move teflon-coated, rubber-coated, and wooden surfaced carts are displayed on a spring scale. | |
M-k2b | Static vs. Sliding Friction | Use a spring scale and block on the inclined plane to show that static friction is greater than sliding friction. | |
M-k2c | Friction Block on Inclined Plane | The Plane Surface is raised to an inclination of 10 to 1 by the lab stands. Weights are then selected to place the car (with varying loads) in equilibrium. | |
F-c3c | Coffee Filter Drop | One coffee filter dropped from one meter and four coffee filters dropped from 2 meters hit the ground at the same time, demonstrating that the drag force is proportional to the square of the velocity | |
Chapter 6: The Gravitational Force and the Gravitational Field |
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M-L2a | Gravitational Well | A large fiberglass vortex-shaped cone is used to show circular and elliptical orbits and conservation of angular momentum. | |
M-xxx | Cavendish Balance Videodisk | The Cavendish Balance is on videodisk. | |
Chapter 7: Hooke's Force Law and Simple Harmonic Motion |
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W-a2c | Air track glider and Spring | Two identical air track carts are attached to (opposite) ends of an air track by means of two different springs. A mass may be added to either cart, and the dependence of the oscillation frequency on mass and on spring constant may be explored. | |
W-a2a | Spring and Weight | A mass hangs on the end of a spring. Using two springs of different k and a variety of masses, show the effect of varying k and m. | |
W-a1a | Simple Pendulum | A bob on a string hanging from a stand exhibits simple harmonic motion for small angles. | |
W-a1b | 4-to-1 Pendula | One pendulum four times longer than a second oscillates with twice the period of the second. | |
W-a1c | Different mass Pendula | Three pendula of different masses but the same length all oscillate with the same period. | |
W-a6c | Damped Driven Hanging Mass | A mass, supported by a spring whose support is driven, vibrates against a solid screen; the drive amplitude, frequency and the screen angle (damping) can be varied. | |
W-a6a | Tacoma Narrows Film | A 4.40 minute video of the collapse of the Tacoma Narrows Bridge. Very impressive and memorable. | |
Chapter 8: Work, Energy, and the CWE Theorem |
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M-m2c | Spring Launched Cart on Level Track | A spring (of measurable spring constant) launches a cart (with measurable final veloctiy) on a level air track. Mass of cart can be varied. | |
M-m4a | Bowling Ball Pendulum | A bowling ball pendulum is pulled back until it touches the lecturer's nose and let go. The lecturer does not move. | |
M-m4b | Galileo's Pendulum and Nail | Intercept the swing of a pendulum by a post at the bottom of the swing; the ball rises to the same height independent of the length of the pendulum. | |
M-m4f | Spring-Launched Rolling Cart | Predict the height to which a spring-compressed glider with rise on an inclined air track given the mass, spring constant, and amount of spring compression. Do the experiment. | |
W-a2b | Spring and Air Cart | An air track glider is attached to a horizontal spring and displaced from equilibrium. | |
M-m3a | Decelerated Pendulum Rider | A pendulum hits a level board, transferring a mass rider that slides to a stop. | |
Chapter 9: Impulse, Momentum, and Collisions |
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M-n1b | Egg in Sheet | Throw an egg into a sheet held by two people. | |
M-n2a | Fire extinguisher wagon | Mount a fire extinguisher on a cart and take a ride. [Up to one week's notice required for extinguisher.] | |
M-n2b | Water Rocket | A toy rocket is launched twice, once when pumped up with air and once when pumped up with water. | |
M-n3c | Elastic Collisions on Air Track | Elastic collisions between air track gliders of equal and/or unequal mass. | |
M-n3d | Inelastic Collisions on Air Track | Inelastic collisions between air track gliders of equal and/or unequal mass. | |
M-n3a | Newton's Cradle | Five adjacent metal balls on a bifilar suspension illustrate momentum conservation properties. | |
M-r4a | Happy and Unhappy Balls | Two black rubber balls of about 1.5 cm diameter are dropped from a height simultaneously. One ball bounces high while the other barely rebounds. Great to pass around. | |
M-r4b | Atomic Trampoline | Compare a steel ball bouncing on an amorphous metal to one bouncing on stainless steel. | |
M-h1b | Tennis Ball Cannon | A cannon mounted on the air track shoots a tennis ball out horizontally. | |
M-j1a | Determining Center of Mass | Suspend a 2-dimensional shape from holes drilled near the edges, and use a plumb bob to find the center of gravity. | |
M-d4b | Motion of an Extended Object | A slab of foam has its center of mass marked with a black dot; this dot follows a parabolic path when the slab is thrown. | |
M-d4e | Air Track Inchworm | Two air track gliders coupled by a spring will oscillate about the center of mass that is marked by a flag. | |
M-j1c | Center of Gravity Blocks | Stack blocks stairstep fashion at the edge of the table until the topmost block sticks out beyond the table edge. | |
Chapter 10: Spin and Orbital Motion |
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M-xxx | Round Platform with balls that rotate | A round platform with two wooden balls attached (a third can be placed in the middle) is mounted to a variable speed motor. Illustrates both spin and rotational motion. NEW | |
M-j4e | Torque Bar | A long thin rid mounted perpendicular to a bar handle holds a 2 kg mass on a sliding collar. | |
M-q2a | Whirlybird | Two equal masses with adjustable positions are mounted on a radial bar fixed to a horizontal axis with a pulley. A weight on a string rotates the assembly. | |
M-xxx | Wrench, Nut, and Bolt | Use a wrench, nut, and bolt to illustrate torque. NEW | |
M-d5a | Orbit Ball | This consists of a large and a small ball attached to opposite ends of a string which passes through a metal handle. The light ball is twirled and the centripetal force is provided by the weight of the heavy ball. | |
M-q1a | Inertia Wands | Students twirl equal mass wands, one with the mass concentrated in the middle, the other with the mass concentrated at the ends. | |
M-xxx | Toy Top | A toy top, if we have one. | |
M-q5d | MITAC Gyroscope | This motorized gyroscope, used in the teaching labs, is good for showing a gyroscope's directional constancy; can also show precession due to applied torques. | |
M-q1b | Ring versus Disk Race | The Matched Disk and Ring are identical in diameter and mass. When rolled down the inclined plane, the disk wins the race due to its lower moment of inertia. | |
M-q1c | Racing Disks | Two disks of identical mass, one weighted in the center and the othe weighted at the rum, are rolled down an incline. | |
M-q1d | Racing cylinders | The Set of 3 Cylinders appear to be identical and they have the same mass, but internally, the mass is distributed differently and they accelerate at different rates down an incline. | |
M-m4c | Loop the Loop | A rolling ball must be released from a height equal to 2.7 times the radius of the loop. | |
M-q6a | Good, Bad, and Giant YoYos | Comparison betwen well and poorly designed yoyos. | |
M-q4a | Rotating Platform and Weights | Spin on a rotating platform with a dumbbell in each hand. | |
M-q4b | Swinging Bat on Rotating Platform | Stand on a rotating platform initially at rest, and swing a bat or a mallet. | |
M-q4c | Bike wheel on rotating platform | Invert a spinning bicycle wheel while standing on a rotating platform. | |
M-q5c | Bicycle Wheel Gyro | The bike wheel is hung from its axle by a wire attached to the ceiling; when spun the bike wheel illustrates gyroscope motion nicely. [Ceiling hooks are in Auditorium and Rm. 278] | |
M-j4c | Equilibrium of Forces I | A horizontal beam with a sliding 1 kg mass is hung between two spring scales. | |
M-j4b | Equal Arm Balance | Combinations of weights and distances on either side of the fulcrum of the equal arm balance may be selected to produce equilibrium. An oblique arm is used to show that the effective length of the lever arm is set by the component of the force. | |
M-j2b | Tight Rope Walker | The Tight Rope Walker consists of a pulley with four heavy lead weights on long semi-stiff wires symmetrically mounted around it. When placed on the "rope" (Cord), the weights hang down well under the rope, leaving the center of the Walker's mass below the rope and thus making it easy for the Walker to keep its balance. | |
Chapter 11: Solids and Fluids |
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M-r2b | Young's Modulus | Suspend a wire from the ceiling; using a ruler next to a mark on the wire, hang weights and measure the change in position. Knowing the length, cross sectional area, and the change and length, Young's modulus can be calculated. | |
M-r2a | Breaking Wire | Suspend a wire from the ceiling and add masses until the wire breaks. | |
M-r3a | Deformation of Solids | The large book can be pushed perpendicular to the spine to show shear. | |
F-b2a | Pascal's Vases | Tubes of different geometries rise vertically out of a common reservoir of colored water. | |
F-b3a | Crush the Can | A vacuum pump evacuates a 1 gallon can; atmospheric pressure crushs the can. | |
F-b3b | Magdeburg Disks | Evacuate Magdeburg hemispheres and try to separate them. | |
F-b2f | Hydraulic Press | Break a piece of wood in a hydraulic press. | |
F-b4a | Weigh Submerged Block | A 2 kg Al cylinder, suspended from the 20 N spring scale, is lowered into water and the new weight is observed. Can also lower into oil for comparison. | |
F-a1a | Floating Metals | Float a razor blade, a paperclip, and a needle on the surface of water. | |
F-c2a | Bernoulli Tubes | Air flows through a restricted glass tube to the atmosphere; the pressure at different points of the tube is shown by manometers. | |
F-c2b | Floating Ping Pong Ball | A ping pong ball floats in an upward stream of air. | |
F-c2c | Funnel and Ball | A ping-pong ball is supported by air streaming out of an upside down funnel. | |
F-c2d | Windbag | Blow up an 8-foot long bag with one breath. | |
F-c2e | Ping Pong Ball and Racket | Use a ping pong racket to hit a curve ball using a 2-3" diameter styrofoam ball or a ping pong ball. | |
Chapter 12: Waves |
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W-b1a | Pulse on 1.9m spring | Give the 1.9 m spring a quick pulse. The length and/or tension in the spring can be varied. Better than rope! | |
W-b2a | Hanging Slinky | A long slinky is supported on a bifilar suspension, and the ends are taped to the lab stands, for showing longitutinal wave properties with minimal friction. [Under development.] | |
W-d2a | Guitar | Hanging weights on the end of a "guitar" can be varied to "tune" the guitar to a desired pitch. | |
W-b1b | Pulse Propagation (Inertia) | Excite each of the three torsional transverse wave machines by hand to show how the wave speed varies as the inertia of the medium (the rod length) varies. | |
W-b1c | Shive's Reflection at a barrier | Send pulses down a Shive wave model machine with the other end free, then fixed. | |
W-b2k | Joined spring and cord | The 1.9 m spring is attached to a rubber cord; pulses started at one end will produce both transmitted and reflected pulses. | |
W-b3a | Bell in a Vacuum | An alarm buzzer is suspended inside an evaculated bell jar, turned on, and the bell jar is evaculated. When air is let back into the jar, the sound returns. | |
W-b4a | Doppler Buzzer | Swing a small battery powered buzzer on the end of a string in a circle over your head. | |
O-c1a | Single Slit Diffraction Pattern | Shine a laser beam through single slits of various widths. | |
W-d2a | Guitar | Hanging weights on the end of a "guitar" can be varied to "tune" the guitar to a desired pitch. | |
W-d3a | Resonant Tube | A long tube is rolled in from of a speaker driven by a sine wave generator to show resonance. A microphone probe shows pressure variations on the o-scope. | |
W-d4a | Beats | Two tuning forks of identical frequency are mounted on resonant enclosures; when a small piece of wax is attached to one, beats can be heard. | |
W-c5a | Pasco Fourier Synthesizer | Construct, hear, and see waveforms built from the 440 Hz fundamental and up to eight harmonics. | |
Chapter 13: Temperature, Heat Transfer, and the First Law of Thermodynamics |
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H-e3a | Constant Volume bulb | The constant volume bulb is filled with helium at room temperature and pressure, then sealed. It is then immersed in boiling water, ice water, and liquid nitrogen (or in a alcohol/acetone bath). | |
H-a3a | Bimetallic Strip | Strips of dissimilar metals bonded together bend when heated. Makes a nice thermometer. | |
H-a3b | Ball and Ring | The Ball will pass through the hole in the brass plate (termed the ring) when both are at room temperature. When the ball is heated with the torch it expands and will not pass through the ring. | |
H-b1a | Equipartition Theorem | The heat capacity of a 1 kg steel mass is measured by calorimetry. | |
H-b1b | Metals Sinking into Wax | Hot copper, lead, and aluminum cylinders at a common temperature are placed on a wax block. | |
H-b2a | Convection Tube | One side of a glass tube loop is heated while a drop of ink is inserted in the other side. | |
H-b3a | Melting Wax on Rods | Three metal rods (Cu, Al, Steel), with wax mounted on the ends of each, radiate horizontally from a central heated disk. This is a race to see which melts first. | |
H-b4b | Light the Match | A match at the focus of one parabolic mirror is lit by a heating element at the focus of another parabolic mirror. [Delicate Demo] | |
Chapter 14: Kinetic Theory |
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H-d1a | Brownian Motion | The Brownian movement of smoke particles in air is projected onto a screen or wall for all to see. | |
H-d2a | Crookes' radiometer | Light shining on the "radiometer" makes the vanes spin, but in a direction opposite to that expected for light absorption and reflection. | |
H-b7a | Fire Syringe | A small (2mm x 2mm) piece of tissue is put at the bottom of the "fire torch," a clear glass cylinder that is closed at one end. When a plunger is inserted into the open end and rapidly pressed inwards, the tissue bursts into flames. | |
H-b7b | Temperature Increase Generated by Pressure | A thermocouple embedded in a cylinder-and-piston assembly causes a galvanometer deflection when the cylinder is pressurized. | |
Chapter 15: The Second Law of Thermodynamics |
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H-f3a | Stirling Engine | An excellent, simple, working model of the Stirling engine. |