Question

9. Honey is applying something to the ball
bearings of the wheels of her bicycle so the
friction will be minimized. Which of the
following material do you think she is
using?
a. Vinegar
b. Isopropyl alcohol
C. Kerosene
d. Lubricating oil​

Answer 1

Answer:

lubricating oil to minimize friction between the ball bearings. All other choices, vinegar, kerosene, and isopropyl alcohol, are not made with the purpose of minimizing friction.

Explanation:

hope it will help you dear

Answer 2

Honey is applying lubricating oil to the ball bearings of the wheels of her bicycle. (Option D)

• When two objects move across each other in opposite directions, it creates friction.
• Using lubricating oil can help in reducing it and in avoiding wear and corrosion of the objects.
• A good lubricant forms a layer between the two striking surfaces and smoothes down the areas to lessen the damage.
• It also reduces noise and provides longevity.