Advertisements
Advertisements
Question
Fill in the blank.
Bicycles use ...................... to reduce friction between the pedals and the crank
Solution
Bicycles use ball bearings to reduce friction between the pedals and the crank.
APPEARS IN
RELATED QUESTIONS
Friction opposes the ______ between the surfaces in contact with each other.
When a glass rod is rubbed with a piece of silk cloth the rod ______.
Select the correct alternative.
Friction is reduced by
Fill in the blank.
.................... is the SI unit of force.
State if the following statement is true or false. Correct the statement if it is false.
Like charges always attract each other.
Answer the following in short.
Define force. Write its SI unit.
Fill in the blank.
Weight remaining the same, friction is independent of ............. of surface in contact.
Tick the most appropriate answer.
Force of friction comes into play when a/an
Tick the most appropriate answer.
Friction produces
Fill in the blank.
Rolling friction is ........... than sliding friction.
