Question

Friction reduces the efficiency of the machine

• A. True
• B. False

Answer 1

The correct option is A True

1. Friction causes losses and lowers efficiency because it produces heat, which is an energy that cannot be transformed into motion.
2. It is a waste of energy in the form of heat.
3. Friction also causes a machine's wear and tear to grow, lowering its efficiency.

Hence, the given statement is true.