# Measurement & Units

## K8-33: NANOSECOND CABLES

Purpose: Cables which delay a signal by a fixed time interval.

## I3-01: BAROMETER - ANEROID TYPE

Category: I3 Gases
Purpose: Indicate air pressure.

## I1-01: THERMOMETERS

Purpose: Show several types of thermometers.

## H1-31: SOUND LEVEL METER

Category: H1 Nature of Sound
Purpose: Demonstrate use of a sound level meter.

## H1-11: MICROPHONE AND OSCILLOSCOPE

Category: H1 Nature of Sound
Purpose: Show the wave shape of various sounds.

## G1-55: INERTIA BALANCE

Purpose: Illustrate the measurement of inertial mass using SHM.

## G2-06: FRAHM'S FREQUENCY METER

Purpose: Check the 60 Hz line voltage frequency.

## F2-41: DENSITY - SLOPE OF MASS VS VOLUME GRAPH

Category: F2 Buoyancy
Purpose: Determine the density of water.

## F2-11: HYDROMETER

Category: F2 Buoyancy
Purpose: Measure the density of a liquid.

## B4-21: DEFLECTION OF BEAM - OPTICAL LEVER

Category: B4 Elasticity
Purpose: Demonstrate the small deflection of an aluminum beam due to weighting between supports.

## E2-02: MEASUREMENT OF RADIUS OF EARTH

Category: E2 Astronomy
Purpose: Demonstrate how the radius of the earth can be measured using trigonometry.

## P4-51: MILLIKAN OIL DROP MODEL

Purpose: Demonstrate geometry for the Millikan oil drop experiment.

## B2-41: ROBERVAL BALANCE

Purpose: Demonstrate a paradox in equilibrium of forces and torques

## A2-32: HEIGHT MEASUREMENT BY TRIGONOMETRY

Category: A2 Mathematics
Purpose: Determine the height of a student using trigonometry

## A1-32: VOLUMES - SPHERICAL VS CYLINDRICAL

Purpose: Illustrate a volume perception paradox

## A1-22: HOURGLASS

Purpose: Show an hourglass

## A1-12: METRIC TAPE

Purpose: Make measurements in the metric system

## A1-02: MASSES - CHROME PLATED

Purpose: Show a collection of calibrated masses

## K8-04: SPEED OF LIGHT

Purpose: Measure the speed of light
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• #### P4-04: COSMIC RAYS

Demonstrate the existence of cosmic rays. Read More
• #### P4-05: PHOTOMULTIPLIER TUBE - LARGE

Show them what a large photomultiplier tube looks like. Read More
• #### P4-06 RADIOACTIVE CONSUMER PRODUCTS

Show some consumer products and naturally occurring materials that are weakly radioactive Read More
• #### P4-07: SHRINK TUBE - IRRADIATED POLYMER

Demonstrate properties of shrink tube. Read More
• #### P4-08: IONIZATION SMOKE ALARM

Demonstrate how a smoke alarm works. Read More
• #### P4-11 RADIOACTIVE DECAY - DICE

Illustrates the radioactive decay of a sample of nuclei. Shows how a half-life is determined Read More
• #### P4-21: NUCLIDES CHART

Use chart of the nuclides in small class groups. Read More
• #### P4-31: CLOUD CHAMBER - INDIVIDUAL VIEWING

Observe alpha and beta particle paths with a cloud chamber. Read More
• #### P4-33: BUBBLE CHAMBER TRACKS - THREE DIMENSIONAL VIEWMASTER

Allow individual viewing of bubble chamber tracks in three dimensions. Read More
• #### P4-41: RUTHERFORD SCATTERING MODEL

Show difference in scattering from the Thompson and Rutherford models of the nucleus. Read More
• #### P4-51: MILLIKAN OIL DROP MODEL

Demonstrate geometry for the Millikan oil drop experiment. Read More
• #### P4-61: CHAIN REACTION MODEL

Demonstrate a molecular chain reaction, either controlled or uncontrolled. Read More
• #### P4-62: CHAIN REACTION - MOUSE TRAP VIDEO

Model of uncontrolled nuclear chain reaction. Read More
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