Question

6. Which of the following is FALSE about the efficiency of machines?

a. Machines can be more efficient by reducing friction.
b. Adding oil helps machines slide across each other more easily.
c. Adding more opposing forces helps to reduce friction.
d. Adding grease helps machines slide across each other more easily.

Answer 1

a

Step-by-step explanation:

because machines require friction in order to work. it wouldnt be efficient by reducing friction