# First Law of Thermo

## I2-29: Thermal Conductivity - Metal Bars and Liquid Crystals

Purpose: To show the different rates of heat conduction in several metals

## I3-35: SOLAR BAG

Category: I3 Gases
Purpose: To demonstrate how the density of a gas changes with temperature.

## I2-28: WATER BALLOON AND CANDLE

Purpose: To demonstrate the transfer of heat by water

## I5-51: SPECIFIC HEAT - ALUMINUM AND COPPER

Purpose: Illustrate calorimitry and to determine experimentally the specific heats of aluminum and of copper.

## I5-21: HEATING AIR BY COMPRESSION

Purpose: Demonstrate heating air by compression.

## I5-03: MECHANICAL EQUIVALENT OF HEAT - JOULE'S METHOD

Purpose: Determine the mechanical equivalent of heat.

## I5-02: TRANSFORMATION OF MECHANICAL ENERGY INTO HEAT

Purpose: Demonstrate transformation of mechanical energy into heat.

## I4-35: LOWERING THE FREEZING POINT OF WATER USING SALT

Purpose: Demonstrate that the freezing point of water can be reduced by putting ice in a salt water bath.

## I4-03: LATENT HEAT - ICE TO WATER TO STEAM

Purpose: Show latent heat as ice is transformed to water and then to steam.

## K6-22: ENERGY CONVERSION - IMMERSION HEATER

Purpose: Demonstrate quantitatively the conversion of electrical energy into heat.

## I3-32: ISOBARIC EXPANSION OF AIR

Category: I3 Gases
Purpose: Demonstrate expansion of air without change in pressure.

## I2-45: CONVECTION - HIGH/LOW CANDLES IN CYLINDER

Purpose: Brainteaser regarding convection.

## I2-44: CONVECTION - CANDLE IN CYLINDER

Purpose: Demonstrate the mechanism of convection.

## I2-43: CONVECTION - HOT PLATE

Purpose: See convection currents.

## I2-42: FALLING CANDLE

Purpose: Demonstrate how a flame burns in the absence of normal convection.

## I2-41: CONVECTION - POWDER IN WATER

Purpose: Illustrate convection.

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

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

## I2-26: LEIDENFROST PHENOMENON

Purpose: Demonstrate the Leidenfrost effect.

## I2-24: THERMAL CONDUCTIVITY IN WATER

Purpose: Demonstrate that water is a poor conductor of heat.

## I2-11: THERMOS BOTTLE

Purpose: Show the parts of a standard thermos bottle.
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• #### I5-01 MECHANICAL EQUIVALENT OF HEAT - SHOT BAG

Demonstrates that heat can be produced from mechanical work Read More
• #### I5-02: TRANSFORMATION OF MECHANICAL ENERGY INTO HEAT

Demonstrate transformation of mechanical energy into heat. Read More
• #### I5-03: MECHANICAL EQUIVALENT OF HEAT - JOULE'S METHOD

Determine the mechanical equivalent of heat. Read More

• #### I5-21: HEATING AIR BY COMPRESSION

Demonstrate heating air by compression. Read More
• #### I5-22 FIRE SYRINGE

Demonstrates heating air by compression Read More
• #### I5-31 STEAM ENGINE - STATIONARY

Working model of a steam engine Read More
• #### I5-32: STIRLING ENGINE

Demonstrates a Stirling engine Read More
• #### I5-33 STEAM ROLLER

Toy steam roller with real steam engine Read More
• #### I5-41: ENDOTHERMIC REACTION - ENTROPY

Aid a discussion of entropy. Read More
• #### I5-51: SPECIFIC HEAT - ALUMINUM AND COPPER

Illustrate calorimitry and to determine experimentally the specific heats of aluminum and of copper. Read More
• #### I5-52: ELECTRIC CALORIMETER

Determine the equivalence between electrical energy and heat energy (the electrical equivalent of heat). Read More
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