# 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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• #### C2-01 AIR TRACK - CONSTANT VELOCITY AND UNIFORM ACCELERATION

Demonstrate constant velocity and uniform acceleration with minimal friction Read More
• #### C2-02: AIR TRACK - DIRECT MEASUREMENT OF ACCELERATION

Measure acceleration using two different procedures. Read More
• #### C2-03: AIR TRACK - UNIFORM ACCELERATION - INCLINED

Measure acceleration along an inclined air track. Read More
• #### C2-04: FREE FALL WITH PHOTOCELL GATES

Measure acceleration due to gravity Read More
• #### C2-06 BALL DROP ON ROPE - EQUAL AND UNEQUAL INTERVALS

Illustrate the geometrical effect of free fall Read More
• #### C2-09: FREE FALL WITH STROBE

Show the position of a dropped ball at a series of equal time intervals Read More
• #### C2-10: CONSTANT VELOCITY - GALILEO'S EXPERIMENT

Show constant velocity and uniform acceleration using a rolling body. Read More

• #### C2-21 PROJECTILES DROPPED AND SHOT

Demonstrate the independence of horizontal and vertical components of motion Read More
• #### C2-22 MONKEY AND HUNTER

Demonstrate the independence of horizontal and vertical components of motion Read More
• #### C2-23: TRAJECTORY OF A BALL - MODEL

Illustrate the position of a projectile at equal time intervals Read More
• #### C2-24: WATER DROP PARABOLA

Demonstrate the parabolic path of a projectile. Read More
• #### C2-25: FUNNEL CART

Demonstrate the independence of horizontal and vertical components of motion Read More
• #### C2-26 FUNNEL CART WITH MASS OVER PULLEY

Demonstrate the independence of horizontal and vertical components of motion Read More
• #### C2-27 FUNNEL CART ON INCLINE

Demonstrate the independence of horizontal and vertical components of motion Read More
• #### C2-28: TRAJECTORY OF BALL DROPPED BY WALKER

Demonstrate the independence of horizontal and vertical components of motion Read More