Question Text
Question 2 :
Why is iteasier to pull a lawn roller than to push it?
Question 3 :
The surface of the head of a matchstick and sides of a match box are deliberately made rough to
Question 4 :
Frictional force in a ceiling fan is reduced by using ....................... <br>
Question 5 :
Fill in the blank. Water offers _______ fluid friction as compared to honey. 
Question 7 :
The force which prevents us from slipping while walking on the road is:
Question 8 :
The taxi driver has to be more careful when driving car in winter because of morning dew. That means the friction on road during winter is _______ friction during summer. Fill in the blank.<br/>
Question 10 :
Limiting friction is .................. of the area of contact.fill in the blank<br/>
Question 15 :
When a coin and a feather are dropped simultaneously from the same height, the coin strikes the ground first. This is because of:
Question 16 :
_______ helps in writing with a pen or pencil on a paper.
Question 18 :
Friction between two surfaces can be _______ by polishing the surfaces.fill in the blank.<br/>
Question 19 :
When two bodies are made extra smooth the force of friction ..............