Question

question 10 of 25
if you do not have oil in your cars engine, the parts that rub together in the
engine get very hot. what does the oil do?
a. it decreases the force of friction.
b. it increases the force of friction.
c. it decreases the force of gravity.
d. it increases the force of gravity.

Explanation:

Step1: Recall the role of oil in engines

Oil lubricates engine parts.

Step2: Analyze the effect of lubrication on friction

Lubrication reduces friction between moving parts.

Answer:

A. It decreases the force of friction.