# PHYS141

## C4-22: HORIZONTAL ATWOOD MACHINE

Purpose: Demonstrate the Horizontal Atwood Machine quantitatively.

## C2-09: FREE FALL WITH STROBE

Purpose: Show the position of a dropped ball at a series of equal time intervals

## C1-21: AIR TABLE - TOPPLING STICK

Purpose: Illustrate how a rigid rod topples on a frictionless surface.

## C1-04: CENTER OF MASS - BEAR ON TIGHT ROPE

Purpose: Show stability in system where the center of mass is outside of the object.

## C1-01: CENTER OF MASS MOTION - BARBELL

Purpose: Demonstrate motion of the center of mass of an asymmetric object.

## B2-42: ARM MODEL

Purpose: Model the forces occurring in the arm

## B2-31: EQUILIBRIUM OF TORQUES - WHEELS AND AXLES

Purpose: Demonstrate equilibrium of torques

## B2-23: TORQUE CONDITION FOR EQUILIBRIUM

Purpose: Demonstrate that equilibrium of forces is an insufficient condition for static equilibrium

## B2-22: TORQUE - PHYSICAL DEFINITION

Purpose: Introduce the concept of torque

## B1-14: CENTER OF MASS - BOTTLE

Purpose: Illustrate the center of mass in a surprising way

## C4-34: GALILEO'S EXPERIMENT - MASSES IN FREE FALL

Purpose: Show that the acceleration of bodies in free fall is independent of mass

## C2-25: FUNNEL CART

Purpose: Demonstrate the independence of horizontal and vertical components of motion

## D1-52: FAIRGROUND ROTOR

Purpose: Illustrate the application of rotational forces

## I5-15: ADIABATIC EXPANSION OF CARBON DIOXIDE

Purpose: Illustrate adiabatic cooling by producing dry ice

## C2-21 PROJECTILES DROPPED AND SHOT

Purpose: Demonstrate the independence of horizontal and vertical components of motion

## I5-22 FIRE SYRINGE

Purpose: Demonstrates heating air by compression

## I5-01 MECHANICAL EQUIVALENT OF HEAT - SHOT BAG

Purpose: Demonstrates that heat can be produced from mechanical work

## I4-31 ICE BOMB

Purpose: Demonstrates forces created by freezing water

## I4-15 CONDENSATION OF STEAM - GALLON CAN COLLAPSE

Purpose: Illustrates forces produced by the pressure drop when steam condenses into water

## H1-02 SPEAKER AND CANDLE

Category: H1 Nature of Sound
Purpose: Demontrates longitudinal behavior of sound waves
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• #### F1-01 FLUID PRESSURE VS. DEPTH

Demonstrates that fluid pressure increases linearly with depth and is isotropic. Read More
• #### F1-02: FLUID PRESSURE VS DEPTH - ANEROID GAUGE

Show water pressure versus depth with an aneroid gauge. Read More
• #### F1-03: PASCAL'S VASES

Show water pressure versus depth with an aneroid gauge. Read More
• #### F1-04: EQUILIBRIUM TUBES

Demonstrate that pressure is transmitted equally throughout a fluid. Read More
• #### F1-05: DOES WATER SEEK ITS OWN LEVEL?

A trick to challenge the students. Read More
• #### F1-06 WATER SEEKS ITS OWN LEVEL

Demonstrate that pressure is dependent only on depth, and not on the shape of the container. Read More
• #### F1-11: HYDRAULIC PRESS

Demonstrate dramatically Pascal's Law and the large forces attainable using hydraulic systems. Read More
• #### F1-12: PASCAL'S LAW - COILED TUBE PARADOX

Illustrate Pascal's law in a dramatic way. Read More
• #### F1-13: CONSTANT WATER PRESSURE

Demonstrate a mechanism which produces a constant water pressure. Read More
• #### F1-14: PISTON DIAMETER VS TRAVEL - WORKING MODEL

Show that with an incompressible fluid the bigger piston moves more slowly than the smaller piston. Read More
• #### F1-15: PRESSURE GLOBE

Demonstrate principles of air pressure. Read More
• #### F1-21: LIPLESS STRAW

Demonstrate the role of atmospheric pressure in the operation of a drinking straw. Read More
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