# 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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• #### K6-01 SERIES AND PARALLEL LIGHTS - TWO BULBS

Demonstrates the effect of series and parallel connections of two identical light bulbs Read More
• #### K6-02: SERIES AND PARALLEL LIGHTS - FIVE BULBS

Demonstrate combinations of series and parallel light bulbs Read More
• #### K6-03 SERIES AND PARALLEL LIGHTS - BATTERY AND CLIP-ON WIRES

Shows voltages and currents in series & parallel circuits Read More

• #### K6-21: HEATING IN CURRENT-CARRYING WIRE

Show the conversion of electrical energy into heat Read More
• #### K6-22: ENERGY CONVERSION - IMMERSION HEATER

Demonstrate quantitatively the conversion of electrical energy into heat Read More
• #### K6-32: POTENTIOMETER

Find an unknown EMF using a voltage divider Read More
• #### K6-33: WHEATSTONE BRIDGE

Demonstrate operation of a Wheatstone bridge Read More
• #### K6-35: VOLTAGE DIVIDER

Show how a voltage divider can be used to produce any voltage up to the maximum of the source Read More
• #### K6-36: VISIBLE AMMETER

See some of the important parts inside an ammeter Read More
• #### K6-41: DIODE RECTIFIERS AND FILTERS

Demonstrate rectification of 60 Hz AC by a diode and by a bridge rectifier Read More
• #### K6-42: SINE WAVE AND RECTIFIED SINE WAVE

Show the AC output from a generator and how it is converted to full-wave rectified AC using a split ring commutator Read More
• #### K6-51: KIRCHHOFF'S LAWS

Apply Kirchhoff's laws to a simple two-loop problem Read More
• #### K6-52: IMPEDANCE MATCHING - BATTERY AND JOULEMETER

Demonstrate that the power transmission is maximized when the source impedance and the load impedance are equal Read More
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