Bibliography

Pictures and gifs:
https://www.pinterest.com/pin/332703491193085555/ 
https://sites.google.com/site/thescienceipadlab/kinetic-and-potential-energy
http://www.bsharp.org/physics/swings
http://www.physicsinsights.org/up_in_a_swing.html
https://www.teachengineering.org/lessons/view/cub_pend_lesson01

Information:
https://www.chem.wisc.edu/deptfiles/genchem/netorial/modules/thermodynamics/energy/energy2.htm
http://www.physicsinsights.org/up_in_a_swing.html
https://indianapublicmedia.org/amomentofscience/swinging-physics/
https://www.teachengineering.org/lessons/view/cub_pend_lesson01
http://www.softschools.com/formulas/physics/angular_momentum_formula/86/
Baby Professor. Potential Energy vs. Kinetic Energy - Physics Made Simple. Baby Professor, May 15, 2017. Print