Question

15
write the methods
to reduce friction:
Ang four​

Answer 1

Explanation:

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• Make the surfaces smoother. Rough surfaces produce more friction and smooth surfaces reduce friction.
• Make the surfaces smoother. Rough surfaces produce more friction and smooth surfaces reduce friction.Lubrication is another way to make a surface smoother.
• Make the surfaces smoother. Rough surfaces produce more friction and smooth surfaces reduce friction.Lubrication is another way to make a surface smoother. Make the object more streamlined.
• Make the surfaces smoother. Rough surfaces produce more friction and smooth surfaces reduce friction.Lubrication is another way to make a surface smoother. Make the object more streamlined.Reduce the forces acting on the surfaces.
• Make the surfaces smoother. Rough surfaces produce more friction and smooth surfaces reduce friction.Lubrication is another way to make a surface smoother. Make the object more streamlined.Reduce the forces acting on the surfaces. Reduce the contact between the surfaces.

Answer 2

Answer:

Methods for Reducing Friction

☆ Moving parts of machines are covered with oil or grease, which make the effect of friction less.

☆ The surfaces are highly polished, to eliminate the irregularities thus making the surface smooth and reducing friction to a great extent.

☆ Fluid friction is reduced by using streamlined shapes in airplanes or ships.

☆ Use of wheels between surfaces moving over each other reduces friction as rolling friction is less than the sliding friction.

☆ Ball bearings are used in machines to reduce friction. These are tiny steel balls often placed between moving parts of machines which reduces friction and saves a lot of energy.