EASY
8th CBSE
IMPORTANT
Earn 100

Friction causes wastage of energy.

53.85% studentsanswered this correctly

Important Questions on Friction

EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 12 - Friction>EXERCISES>Q B
A machine with moving parts will become less hot while running if it is well lubricated.
EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 12 - Friction>EXERCISES>Q B
Friction due to fluids is called _____.
EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 12 - Friction>EXERCISES>Q B
To reduce fluid friction, the object should have a _____ shape.
EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 12 - Friction>EXERCISES>Q C
What is friction?
EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 12 - Friction>EXERCISES>Q C
An object is moving from north to south. What is the direction of the force of friction on the object?
EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 12 - Friction>EXERCISES>Q C
On what principle do ball bearings work?
EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 12 - Friction>EXERCISES>Q C
How does lubrication reduce friction?
EASY
8th CBSE
IMPORTANT
Living Science 8>Chapter 12 - Friction>EXERCISES>Q C
Give an example to show the effect of heat generated in a machine due to excessive friction.