Friction causes _______ of energy.
Hence, Friction causes wastage of energy.
A man sharpens his knife. Which of these statements describes the properties of friction that are in use? A. Friction helps to induce magnetism B. Friction acts in the opposite direction of relative motion. C. Friction causes the surfaces in contact to wear away. D. Friction produces heat energy.
What causes potential energy in a molecule inside a liquid?
Friction causes ______________of moving parts of a machine.