# PHYS121

## I6-52: ENTROPY - FOUR BALLS IN GAS DIFFUSION MODEL

Purpose: Demonstrate that an ordered state is statistically possible.

## I6-33: MOLECULAR MOTION DEMO - GAS PRESSURE

Purpose: Model gas pressure.

## I4-19: CONDENSATION OF STEAM - SODA CAN COLLAPSE

Purpose: Surprising demonstration using condensation of steam.

## I3-52: CONSTANT VOLUME GAS THERMOMETER - ABSOLUTE ZERO

Category: I3 Gases
Purpose: Determine the value of absolute zero.

## I3-19: LIFTING USING ATMOSPHERIC PRESSURE

Category: I3 Gases
Purpose: Dramatically demonstrate an effect of air pressure.

## I3-12: WATER BAROMETER - CAN CRUSHER

Category: I3 Gases
Purpose: Illustrate a result of atmospheric pressure.

## I2-27: THERMAL EQUILIBRIUM BETWEEN ALUMINUM AND COPPER

Purpose: Show process of thermal equilibrium happening between touching aluminum and copper cylinders.

## I1-01: THERMOMETERS

Purpose: Show several types of thermometers.

## F4-11: LAMINAR AND TURBULENT FLOW OF AIR

Category: F4 Fluid in Motion
Purpose: Demonstrate laminar and turbulent flow.

## F4-01: VISCOSITY OF LIQUIDS

Category: F4 Fluid in Motion
Purpose: Compare the viscosities of water and mineral oil.

## F2-13: BOUYANCY - EXPANDING BALLOON CONUNDRUM

Category: F2 Buoyancy
Purpose: Conundrum involving weight of an expanding balloon.

## F2-07: BUOYANCY - PEPSI AND DIET PEPSI

Category: F2 Buoyancy
Purpose: Show the difference in density between soft drinks with and without sugar.

## F2-04: BUOYANCY - SPHERE AND WATER

Category: F2 Buoyancy
Purpose: Challenge the students' thinking about the buoyant force by considering the question: "Will a round object, without a flat top and bottom surface, experience a buoyant force, as does a cylinder?"

## F1-11: HYDRAULIC PRESS

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

## F1-05: DOES WATER SEEK ITS OWN LEVEL?

Purpose: A trick to challenge the students.

## F1-04: EQUILIBRIUM TUBES

Purpose: Demonstrate that pressure is transmitted equally throughout a fluid.

## F1-02: FLUID PRESSURE VS DEPTH - ANEROID GAUGE

Purpose: Show water pressure versus depth with an aneroid gauge.

## D2-05: DUMBBELL - VARIABLE MOMENT OF INERTIA

Purpose: Demonstrate the effect of moment of inertia.

## B4-14: ELASTIC LIMIT OF WIRE

Category: B4 Elasticity
Purpose: Demonstrate the variation in tensile strength with wire diameter.
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• #### F5-01: TOY CAR AND BALL - COANDA EFFECT

Demonstrate levitation of a ball in a cute way. Read More
• #### F5-02: BALL ABOVE MOVING CART - COANDA EFFECT

Demonstrate levitation of a ball by an air stream. Read More
• #### F5-03: THIN METAL SHEETS - COANDA EFFECT

Demonstrate a fluid-flow model of the vocal folds. Read More
• #### F5-04: LARGE BALL AND FUNNEL - COANDA EFFECT

Illustrate the Coanda effect in a dramatic way. Read More
• #### F5-05: SMALL BALL AND FUNNEL - COANDA EFFECT

Illustrate the Coanda effect in a dramatic way. Read More
• #### F5-06 BEACH BALL - COANDA EFFECT

Illustrates the Coanda effect Read More
• #### F5-07: SPOOL AND CARDBOARD

Illustrate properties of fluid flow in a counterintuitive way. Read More
• #### F5-08: MARBLE IN WATER JET

Demonstrate levitation by a water stream. Read More
• #### F5-09 HAIRDRYER AND PING PONG BALL - COANDA EFFECT

Demonstrate levitation by an air stream. Read More
• #### F5-10: CHIMNEY DRAW WITH WATER

Illustrate the concept of chimney draw. Read More
• #### F5-11: AIRPLANE WING

Illustrate the pressure difference across an airplane wing. Read More
• #### F5-21 VENTURI TUBE WITH MANOMETERS

Illustrates the venturi effect Read More
• #### F5-22 VENTURI TUBE WITH PING PONG BALLS

Illustrates the venturi effect Read More
• #### F5-24: VENTURI TUBE WITH WATER - MANOMETERS

Illustrate the Venturi effect in water. Read More
• #### F5-31: MAGNUS EFFECT - FLETTNER'S SHIP

Demonstrate the Magnus effect. Read More
• #### F5-32: CURVE BALL

Demonstrate a curve ball as an example of the Magnus effect Read More