Advertisements
Advertisements
Question
Fill in the blank.
We use ball bearings to .................. the friction.
Advertisements
Solution
We use ball bearings to reduce the friction.
APPEARS IN
RELATED QUESTIONS
Friction depends on the ______ of surfaces.
Sometimes, a crackling sound is heard while taking off a sweater during winters. Explain.
Name the two kinds of forces in nature.
Answer the following.
What do you understand by a force?
Fill in the blank.
Rolling friction is ........... than sliding friction.
State if the following statement is true or false. Correct the statement if it is false.
Friction helps us to grip the objects in our hand.
Answer the following in detail.
Write the characteristics of the force of friction?
Rolling friction is slightly greater than sliding friction.
We have two identical metal sheets. One of them is rubbed with sand paper and the other with ordinary paper. The one rubbed with sand paper shines more than the other. Give reason.
Assertion: We can live very happily if friction is not present in nature.
Reason: The airplane shape is streamlined to reduce the effort of frictional force.
