Advertisements
Advertisements
Question
Fill in the blank.
Friction is a type of .................
Advertisements
Solution
Friction is a type of contact force.
APPEARS IN
RELATED QUESTIONS
A charged glass rod attracts a charged plastic straw.
The eraser gets smaller and smaller as you use it more and more. Explain the reason.
State if the following statement is true or false. Correct the statement if it is false.
If two forces acting in opposite directions on a body arc of equal magnitude, then the body will not move.
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 a word or two or in a sentence.
Which type of force acts on a string pulled from both ends?
Fill in the blank.
Sliding friction and rolling friction are types of .................. friction.
Fill in the blank
Rolling friction is ............. than sliding friction.
Answer the following in detail.
Define friction and explain how it is useful to us.
Match the following.
| Column I | Column II | |
| a) | Static friction | Viscosity |
| b) | Kinetic friction | Least friction |
| c) | Rolling friction | Objects are in motion |
| d) | Friction between the liquid layers | Objects are sliding |
| e) | Sliding friction | Objects are at rest |
Assertion: There is a danger of a vehicle skidding on a wet road.
Reason: The tires of the vehicle lose their grip on the road due to an increase in friction due to the presence of water on the road.
