Conservation of Energy (Grade 12 NSC Matric Physical Sciences): Quizzes

Work depends only on start and end points

Gravity

$W_{\text{conservative}} = -\Delta E_p$

Only the height change $h$

Work depends on the path taken

Converts to thermal energy

Yes, total energy is always conserved

$W_{\text{non-conservative}} = \Delta E_k + \Delta E_p$

Mechanical energy decreases

2.60 m