PIRA #

Demonstration Name

Abstract

1A10.10

Basic Unit Set

Show a clock with a second sweep, meter and yard sticks, and kilogram and pound mass.

1A10.20

Standard Masses

Show students a 1 lb mass and a 1 kg mass.

1A10.21

Standard Mass Set

Show a sets of calibrated weights.

1A10.30

Standard Meter

Put out a Standard Meter.

1A10.31

Precision Gauge Blocks, Hoke

Show a sets of calibrated Hoke measuring blocks that are precision gauged for measuring thickness.

1A10.36

1 "nsec"

Cut a length of meter stick to equal the distance light travels in one nsec. (0.29 m)

1A10.40

Clocks

Set out a timer with a one second sweep, an hour glass, a metronome, etc.

1A10.45a

WWV Signal, Phone

Put out a phone and call WWV  to listen to the signal.

1A10.45b

WWV Signal, Web

Punch-up http://www.boulder.nist.gov/timefreq/stations/wwv.html

1A10.48

Orrery

Get the Orrery from Astronomy to show sidereal time.

1A10.49

Sidereal Time

Two clocks on permanent display show Greenwich and Sidereal time.

1A10.50

One Liter Cube

Put out a one liter wood cube that has cm square rules on one face.

1A10.55

Mass, Volume, and Density

Compare wood and aluminum cubes, each with 10 cm sides, (equal volume). Compare a 10 cm aluminum cube with a 10 cm sq x 4 cm lead block (equal mass). Compare a is cm aluminum cube with a 10 cm sq x 4 cm aluminum block (equal density).

1A10.60a

Avogadro's Number Box

A cube with sides of 28.2 cm has a volume of 22.4 l at STP.

1A10.60b

Avogadro's Number Box

A 22.4 liter box to represent the volume of one mole at STP.

1A10.65

Mole Samples

Show mole samples of carbon, iron, copper, zinc, etc.

1A10.70

Density Samples

One kg samples of lead, aluminum, water, wood each have 5 cm square bases. A one meter frame shows the size of approximately 1 kg of air.