Advertisements
Advertisements
Question
Friction opposes the ______ between the surfaces in contact with each other.
Advertisements
Solution
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
RELATED QUESTIONS
Sometimes, a crackling sound is heard while taking off a sweater during winters. Explain.
Write true or false.
Liquids offer more friction than the gases.
Name the two kinds of forces in nature.
Give an example to illustrate the existence of the force of friction.
Arrange the following in descending order:
- static friction
- sliding friction and
- rolling friction?
A body needs a force F1 just to start moving on a surface, a force F2 to continue its motion and a force F3 to roll on the surface. What is
- the static friction
- sliding friction and
- rolling friction? State whether F2 is equal, less than or greater than (1) F1 and (2) F3.
State if the following statement is true or false. Correct the statement if it is false.
Like charges always attract each other.
Tick the most appropriate answer.
Friction produces
Fill in the blank.
Rolling friction is ........... than sliding friction.
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.
When you push something heavy, the resistance you feel decreases as soon as the object starts moving. Explain the reason.
Answer the following in short.
How can sliding friction be changed into rolling friction easily?
Answer the following in short.
List the various states of matter that offer frictional force?
Answer the following in detail.
Define friction and explain how it is useful to us.
Rolling friction is slightly greater than sliding friction.
Whenever the surfaces in contact tend to move or move with respect to each other, the force of friction comes into play
Assertion: Friction always opposes the motion.
Reason: Whenever one surface moves or tries to move over another surface, the force of friction starts acting on the surfaces.
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.
