Grindstone
The motor works in spinning the grindstone, giving it rotational kinetic energy. That energy is then converted to heat, light, sound, and vibration. (Credit: U.S. Navy photo by Mass Communication Specialist Seaman Zachary David Bell. )
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"OpenStax College, Rotational Kinetic Energy: Work and Energy Revisited. February 9, 2013."
http://cnx.org/content/m42180/latest/Figure_11_04_01a.jpg
OpenStax CNX
CC BY 3.0.
