# PHYS141

## F2-03: CARTESIAN DIVER - EXPLICIT VERSION

Category: F2 Buoyancy
Purpose: Demonstrate explicitly how a cartesian diver works by showing how the water enters the diver when the pressure in the cylinder is increased.

## F1-11: HYDRAULIC PRESS

Purpose: Demonstrate dramatically Pascal's Law and the large forces attainable using hydraulic systems.

## F1-03: PASCAL'S VASES

Purpose: Demonstrate that pressure is dependent only on depth, and not on the shape of the container.

## D2-51: BICYCLE WHEEL PENDULUM

Purpose: Demonstrate the Parallel Axis Theorem.

## D2-11: HINGED STICK AND FALLING BALL

Purpose: Application of the rotational analog of Newton's second law.

## D1-83: SPOOL

Purpose: Illustrate a counterintuitive problem in rotational dynamics.

## D1-55: ROTATING ELASTIC RINGS

Purpose: Demonstrate "centrifugal reaction" and to indicate why the earth is oblate.

## D1-40: CENTRIPETAL FORCE ON ROTATING RUBBER BAND

Purpose: Demonstrate centripetal force and centrifugal reaction.

## D1-39: PENNY AND COAT HANGER

Purpose: Demonstrate centripetal force and centrifugal reaction in a dramatic way.

## D1-30: TRAJECTORY FROM CIRCULAR ORBIT - OVERHEAD PROJECTOR

Purpose: Show that the instantaneous velocity of an object executing uniform circular motion is tangent to the circle.

## C7-25: SUPERBALL, VACUUM MUD AND WOOD BLOCK COLLISIONS

Category: C7 Collisions
Purpose: Show that a larger impulse is imparted by an elastic collision.

## C7-12: COLLISION OF BALLS - ONE LIGHTER MASS

Category: C7 Collisions
Purpose: Show what happens when one mass in a collision ball set is different from the others.

## C7-04: AIR TRACK - COLLISION VELOCITY MULTIPLIER

Category: C7 Collisions
Purpose: Illustrate velocity multiplication with a three-to-one mass ratio collision.

## C8-34: POWER - INSTRUCTOR DRAGGING CONCRETE BLOCK

Purpose: Demonstrate power

## C8-33: POWER - USING GRAVITY

Purpose: Demonstrate mechanical power.

## C8-03: GALILEO'S PENDULUM

Purpose: Demonstrate conservation of energy in a simple system.

## C6-11: SLIDING FRICTION - LECTURE TABLE AND FELT

Category: C6 Friction
Purpose: Show the effect on frictional force of velocity, normal force, and contact area.

## G4-22: CHLADNI FIGURES - OSCILLATOR DRIVEN

Purpose: Show two-dimensional standing waves in a metal plate

## C5-31: AIR TRACK - SAILING UPWIND

Purpose: Show how force components can be used to sail against the wind.

## C5-12: BALLISTIC CANNON CARTS

Purpose: Demonstrate Newton's third law of motion
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• #### C8-03: GALILEO'S PENDULUM

Demonstrate conservation of energy in a simple system. Read More
• #### C8-04 HILL TRACK

Demonstrates conservation of energy Read More
• #### C8-05: CONSERVATION OF ENERGY IN VERTICAL PROJECTILE

Show the relation between initial velocity and height of a vertical projectile. Read More
• #### C8-06 PILE DRIVER

Illustrates gravitational potential energy converting into kinetic energy converting into work Read More
• #### C8-11 INTERNAL VS. EXTERNAL ENERGY - SPRING-COUPLED SUPERBALLS

Shows that when energy disappears from the center of mass motion it may be converted into internal energy Read More
• #### C8-12: JUMPING MASSES WITH INTERNAL SPRINGS

Demonstrate conversion of internal energy of a spring into kinetic energy and then gravitational potential energy. Read More
• #### C8-13: BUNGEE JUMPER MODEL

Determine the minimum value of the spring constant of a bungee rope to ensure a safe jump. Read More
• #### C8-14 JUMPING CLAMP

Demonstrates mechanical potential energy transforming into kinetic energy Read More
• #### C8-21: ROCK AND WASTE BASKET

Demonstrate conservation of energy in a humorous way. Read More
• #### C8-22: ENERGY CONVERSION - SUPERBALL AND SOUNDING BOARD

Show transformation of energy from one form to another. Read More
• #### C8-23: WORK DONE BY PUSHING ON WALL

Illustrates that the wall and the floor do no work. Read More