Advertisements
Advertisements
प्रश्न
Friction opposes the ______ between the surfaces in contact with each other.
Advertisements
उत्तर
Friction opposes the motion between the surfaces in contact with each other.
Explanation:
This means that when two objects move or try to move past each other, friction resists their movement, acting in the opposite direction to slow them down or prevent motion altogether.
APPEARS IN
संबंधित प्रश्न
Write true or false.
The sliding friction is more than the rolling friction.
The eraser gets smaller and smaller as you use it more and more. Explain the reason.
List three ways of reducing friction.
Arrange the following in descending order:
- static friction
- sliding friction and
- rolling friction?
Fill in the blank.
.................... is the SI unit of force.
Answer the following in short.
What do you understand by normal force?
Fill in the blank.
Sliding friction and rolling friction are types of .................. friction.
Tick the most appropriate answer.
Force of friction comes into play when a/an
Tick the most appropriate answer.
Friction for an object can be reduced by
Fill in the blank
Rolling friction is ............. than sliding friction.
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 is offered by all the three states of matter.
Answer the following in a word or two or in a sentence.
Name the force responsible for opposing the motion between two bodies in contact.
Answer the following in short.
Define rolling friction and give an example where rolling. friction comes into play.
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 |
Why is a ball bearing used in a cycle hub?
Is there any possibility of making a special device to measure the magnitude of friction directly?
Complete the analogy.
Knot in a thread : ______ friction :: Ball bearing : ______ friction.
