Embedded Files
Principle:
Waves are disturbances of energy that travel in a medium. Three types of waves are known: transverse, longitudinal, and standing. Transverse waves travel perpendicular to the direction of energy, as seen in the movements of a slinky up and down (or doing "the wave"), while longitudinal waves travel parallel to the direction of energy (in nature, these are found in earthquakes and tsunamis). Lastly, standing waves are waves that do not appear to be moving through a medium (hence the STANDING) because of the interference phenomenon of two waves passing through the same medium in a perfectly timely manner. These produce nodes, which are the points of no displacement (like no-des!), while anti-nodes are where maximum displacement occurs (like anti no-des!).
Materials:
1 Slinky
1 3D Standing Wave Machine
1 Transverse Wave Demonstrator
Procedures (in order of appearance):
Transverse Wave Demonstrator:
1. Raise or lower one end of the demonstrator, allow energy to move across and back to each end of the demonstrator.
2. If desired, time wave movements to imitate constructive or destructive waves.
Slinky:
Extend slinky out to a reasonable distance.
Quickly raise and lower the slinky to produce wavelike movement (or side to side)
Transverse Wave Light Demonstrator:
1. Turn on the machine.
2. Adjust motor speed, flash speed, pattern select, and pulse control to create a variety of different patterns of reflecting light.
Safety Notices:
There are no safety precautions needed.
Page updated
Google Sites
Report abuse