Photoelectric Effect Demonstration - Penn Physics

This series of demonstrations, made in collaboration with the University of Pennsylvania's Physics & Astronomy department, was designed for use in the classroom as well as review materials. There are silent and narrated options for each demonstration.
For more information on Penn Physics, please visit: www.physics.up....

[@janwieczorek4403]

Wow....Rarely do you see a video so clearly explain a topic at the middle school/high school level that you have to make 0 edits or adjustments. Thank you for the thoughtful contribution to physics education.

[@Mi.Ra2811]

An amazing demonstration of this classic experiment. Wish everyone had such profs at Uni

[@7yep4336dfgvvh]

This guy here kicks some serious butt. Video well put together, mistical-sounding intro, professor looks the physics lab genius part

[@johnturner4559]

Awesome video again Mark, tell Toney I said hi

[@revanthnrajan2705]

Wonderful explanation! Thank you very much for this!

[@AK-jdi]

Excellent!! Thankyou so much

[@carolnglinjoo4059]

Thank you..

[@shivanihr5879]

Sir, can you please explain where are those knocked off electrons going? Electrons can't be free..so where do they go or land after been knocked off the metal.

[@7yep4336dfgvvh]

They go to electron heaven