Friction Reduction | MCQs

Explanation

• Swimmers make their bodies streamlined to reduce friction underwater.
• It allowing them to move more efficiently and quickly through the water.

Explanation

• Grease is a lubricant that can be used to reduce friction between moving parts of machines.
• It helps to reduce wear and tear, prevent overheating, and allow parts to move smoothly.

Explanation

• Increasing the weight is not a way to reduce friction.

Ways to reduce friction:

• Smoothing and polishing surfaces
• Reducing contact area
• Using oil and lubricants
• Using ball bearings and rollers