# Needs New Photo

## G1-36: MASS ON SPRING WITH FORCE MEASUREMENT

Purpose: Display the time dependence of the force of a mass oscillating on a spring.

## G1-35: MASS ON SPRING - EFFICIENT MODEL

Purpose: Illustrate the motion of a mass on a spring.

## G1-34: AIR TRACK - SIMPLE HARMONIC MOTION

Purpose: Demonstrate simple harmonic motion of a mass held by two springs.

## G1-32: MASS ON SPRING - WITH STAND

Purpose: Illustrate SHM.

## G1-31: HOOKE'S LAW AND SHM

Purpose: Quantitatively demonstrate how the spring constant affects the period of a mass on a spring.

## G1-18: PENDULUM WITH FORCE SCALE

Purpose: Show the tension in the string exerted by a swinging pendulum.

## G1-17: PENDULUM WITH LARGE-ANGLE OSCILLATION - PORTABLE

Purpose: Illustrate large-angle pendular oscillations and the 360 degree pendulum.

## F4-63: MARIOTTE'S BOTTLE

Category: F4 Fluid in Motion
Purpose: Show the range of water jets from different heights along a water column.

## G1-16: PENDULUM WITH LARGE OSCILLATION

Purpose: Show the difference between pendula with small amplitude and large amplitude of oscillation, and to show rotational motion where the kinetic energy at the top is much less than the change of potential energy from the top to the bottom of the oscillation.

## G1-12: PENDULUM AND ROTATING BALL

Purpose: Demonstrate that simple harmonic motion is the projection of uniform circular motion.

## F4-61: HERO'S FOUNTAIN

Category: F4 Fluid in Motion
Purpose: Illustrate fluid dynamics in a perhaps surprising way.

## F4-52: FORCE PUMP - MODEL

Category: F4 Fluid in Motion
Purpose: Demonstrate the operation of a force pump.

## F4-42: SMOKE RINGS USING GARBAGE CAN

Category: F4 Fluid in Motion
Purpose: Create large smoke rings and illustrate the circular vortex.

## F4-41: DRUM AND CANDLE

Category: F4 Fluid in Motion
Purpose: Demonstrate the circular vortex.

## F4-23: WATER PENDULUM

Category: F4 Fluid in Motion
Purpose: Show the surface of a container of water in a swinging pendulum.

## F4-22: SPINNING WATER BUCKET

Category: F4 Fluid in Motion
Purpose: Illustrate the reaction force on spinning water and the shape of the water surface.

## F4-21: LIQUID IN SPINNING SPHERE

Category: F4 Fluid in Motion
Purpose: Show the behavior of a liquid when subjected to a centripetal force.

## F4-14: WIND TUNNEL

Category: F4 Fluid in Motion
Purpose: Show air flow around different objects.

## F4-05: PARACHUTE TOY

Category: F4 Fluid in Motion
Purpose: Demonstrate how a parachute quickly reaches its terminal velocity.

## F4-02: VISCOSITY OF AIR

Category: F4 Fluid in Motion
Purpose: Demonstrate that air is viscous.
Page 9 of 21

• #### G3-02: SHIVE WAVE MACHINE - SUPERPOSITION OF PULSES

Demonstrate constructive and destructive interference using pulses. Read More
• #### G3-03: SHIVE WAVE MACHINE - REFLECTION OF PULSES

Demonstrate reflection of pulses from fixed ends and free ends. Read More

• #### G3-05: SHIVE WAVE MACHINE - PARTIAL REFLECTIONS

Show that a wave will be partially reflected at a point where the impedance changes. Read More
• #### G3-06: SHIVE WAVE MACHINE - IMPEDANCE MATCHING

Show that no reflection occurs when the impedance of the load (absorber at right) matches the impedance of the wave machine. Read More
• #### G3-07: SHIVE WAVE MACHINE - TAPERED TRANSFORMER

Useful for obtaining a reasonably good impedance match between the two large segments of the Shive machine. Read More
• #### G3-08: SHIVE WAVE MACHINE - FABREY-PEROT INTERFEROMETER

Demonstrate the mechanical analog of the optical Fabrey-Perot interferometer. Read More
• #### G3-09: SHIVE WAVE MACHINE - FREQUENCY FILTERING

Demonstrate the mechanical analog of the optical Fabrey-Perot interferometer. Read More
• #### G3-10: SHIVE WAVE MACHINE - BRANCHING

Demonstrate branching and recombining with two wave machines in parallel. Read More
• #### G3-11: SHIVE WAVE MACHINE - RESONANCE ABSORPTION

Demonstrate resonance absorption of wave energy by a mass-on-spring system. Read More
• #### G3-20: WAVE APPARATUS

Demonstrate transverse and longitudinal wave motion. Read More

• #### G3-23: TRANSVERSE WAVES ON A LONG SPRING - FREE END

Show reflections at a free end. Read More

• #### G3-25: SLINKY ON LECTURE TABLE - IMPEDANCE MISMATCH

Show partial reflections and dependence of wave speed on density of the medium. Read More
• #### G3-26: AIR TRACK - LONGITUDINAL WAVES

Demonstrate longitudinal waves with a series of spring-coupled air track gliders. Read More
• #### G3-27: AIR TABLE - TRANSVERSE AND LONGITUDINAL WAVES

Demonstrate transverse and longitudinal waves using an air table. Read More

Shows longitudinal and transverse traveling waves & standing waves Read More
• #### G3-29: SUSPENDED SLINKY - PORTABLE

Show longitudinal and transverse traveling waves and standing waves. Read More
• #### G3-31: Spring and Horns

Show sound waves from a mechanical wave Read More
• #### G3-41: WAVE MODELS - PROJECTION

Demonstrate standing waves, travelling waves, and superposition of waves. Read More
• #### G3-42: TORSIONAL WAVES

Demonstrate wave phenomena such as traveling waves, standing waves, and reflection of waves Read More
• #### G3-43 WHIP

Illustrates transverse wave motion. Read More
• #### G3-45: RESONANCE OF WIRES

Show standing waves in heavy wires fixed at one end. Read More
• #### G3-46: STANDING WAVES IN A WIRE LOOP

Illustrate circular standing waves; to use as a model of stationary states in atoms corresponding to standing waves of electrons Read More
• #### G3-51 ROPE WAVE GENERATOR - FREQUENCY VS. WAVELENGTH

Show standing waves in heavy wires fixed at one end. Read More
• #### G3-52: ROPE WAVE GENERATOR - ROPE TENSION VS WAVELENGTH

Observe the change in wavelength of a vibrating rope as the tension is varied. Read More
• #### G3-53 STANDING WAVES IN A STRING

Demonstrates standing waves on a thin string Read More
• 1