Jamal’s teacher has asked the class to use this picture to explain how potential energy transforms to kinetic energy when an object begins to move.

D

Explanation:

I’ve had this question before. Since it’s stairs, the potential energy would decrease due to height decrease and it will be transformed to kinetic energy

elements

explanation:

yes the other ones are right just show me a pic of ur face cuz u look hot

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.