Friction - Physics 101 / AP Physics 1 Review with Dianna Cowern

I don't believe that friction occurs as a result of adhesive forces... They seem too weak... Microscopic bumps require work to be exerted to be moved over each other because acceleration must occur in the vertical direction relative to the surface. Work generates heat. If adhesive forces were responsible for friction, wouldn't ice blocks resist sliding over each other because of hydrogen bonds? Hydrogen bonds are way stronger than induced dipole forces between two wooden surfaces, yet ice on ice has a lower coefficient of friction than wood on wood. I'm just in highschool tho😂