Primary resources
This link takes you to the work-energy section of the openstax college physics textbook.
Kinetic Energy
This link introduces the concept of kinetic energy.
This video is a quirky introduction to the concept of kinetic energy.
Work
This link provides an introduction to the concept of work.
Secondary Resources
Kinetic Energy
Another video discussing kinetic energy.
Other Resources
Kinetic Energy
Hyperphysics on kinetic energy
https://hyperphysics.phy-astr.gsu.edu/hbase/ke.html
Eastern Illinois introduces energy as the ability to do work
https://www.ux1.eiu.edu/~cfadd/1150/06WrkEng/KE.html
The physics classroom breaks down kinetic energy
https://www.physicsclassroom.com/class/energy/Lesson-1/Kinetic-Energy
Here is a great PDF discussing kinetic energy and work
https://www.physics.ohio-state.edu/~gan/teaching/spring99/C7.pdf
Kinetic energy and the work energy theorem
https://theory.uwinnipeg.ca/physics/work/node3.html#SECTION00520000000000...
Kinetic energy described through work
https://teacher.pas.rochester.edu/phy121/lecturenotes/chapter07/chapter7....
Work-energy principle
https://hyperphysics.phy-astr.gsu.edu/hbase/work.html
Here are some additional videos that introduce kinetic energy and work with some worked examples
https://www.youtube.com/watch?v=5ximFGwcosc
https://www.youtube.com/watch?v=iYEWIuQBVyg
https://www.youtube.com/watch?v=S_zoQrA1HXw
https://www.youtube.com/watch?v=zQ_9Atyekh8&list=PLE5FAF872F37546C8&index=1
https://www.youtube.com/watch?v=-0aizPk3a8Y&list=PLE5FAF872F37546C8&index=2
https://www.youtube.com/watch?v=y18j7Ke-6tk&list=PLE5FAF872F37546C8&index=3
https://www.youtube.com/watch?v=gpIGt6ANfFU&index=2&list=PLSzDiTp_K4OfKf...
https://www.youtube.com/watch?v=0Oeywu5IR6s
https://www.youtube.com/watch?v=e8ZwNtn4uLc&feature=youtu.be
https://www.youtube.com/watch?v=X6xPKm28y5E&feature=youtu.be
https://www.youtube.com/watch?v=d4a3BnOkFcs&feature=youtu.be