Consider a bead starting at a rest point. It then slides along the frictionless wire to point K. KE refers to the kinetic energy of the bead; PE refers to the gravitational potential energy of the bead; Total Energy refers to the total mechanical energy of the bead. Let's denote the PE of the bead at point L as PE_L; the KE of the bead at point M as KE_M; the KE of the bead at point 6 as KE_6; and the total energy of the bead at point T as TE_T.