Listen to the beat of gravity. By taking two strings with weights tied to them at different, yet uniform intervals, you can hear the uniformity (and rhythm) of gravity's accelerating pull.
Quick Guide
Preparation Time:
5 to 10 minutes
Learning Time:
Under 5 minutes
Estimated Materials Cost:
1 cent - $1 per student
Age Range:
Ages 6 - 14
Resource Type:
Activity
Language:
English
Materials List
(per student)
Two pieces of heavy string or cord, each about 9 feet (3 meters) long; we’ve found that parachute cord, 1/8 to 1/4 inch (3 to 6 millimeters) in diameter, works well
Ten weights to clip onto the strings—binder clips or 1/2-ounce (15-gram) fishing weights work well
Meter stick or measuring tape with metric units (to measure in centimeters)
Marker (any color) to mark the strings
Cookie sheet or other similar-sized piece of metal or wood