Class 8 Exam > Class 8 Questions > Force of frictiona)is a contact forceb)acts i...
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Force of friction
- a)is a contact force
- b)acts in the direction same or opposite to direction of motion
- c)is small if surface are smooth
- d)has all the above mentioned features
Correct answer is option 'D'. Can you explain this answer?
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Force of frictiona)is a contact forceb)acts in the direction same or o...
Force of Friction:
Force of friction is a force that opposes the motion of an object when it is in contact with a surface. It is a contact force, which means it only occurs when two objects are in contact. The force of friction acts in the direction opposite to the direction of motion, and it is dependent on the roughness of the surface.
Direction of Force of Friction:
The force of friction acts in the direction opposite to the direction of motion. For example, if a box is pushed to the right, the force of friction acts to the left. If the box is pulled to the left, the force of friction acts to the right. The force of friction is always in the opposite direction to the motion of the object.
Contact Force:
The force of friction is a contact force, which means it only occurs when two objects are in contact. When two surfaces are in contact, the force of friction is produced due to the irregularities on the surface. The rougher the surface, the greater the force of friction.
Smooth Surface:
If the surface is smooth, the force of friction is small. For example, if you try to push a book on a smooth table, the force of friction is small, and the book slides easily. On the other hand, if you try to push a book on a rough surface, the force of friction is greater, and the book is harder to move.
Conclusion:
In summary, the force of friction is a contact force that acts in the direction opposite to the direction of motion. It is dependent on the roughness of the surface and is small when the surface is smooth. Therefore, the correct answer is option 'D' which includes all the above-mentioned features of the force of friction.
Force of friction is a force that opposes the motion of an object when it is in contact with a surface. It is a contact force, which means it only occurs when two objects are in contact. The force of friction acts in the direction opposite to the direction of motion, and it is dependent on the roughness of the surface.
Direction of Force of Friction:
The force of friction acts in the direction opposite to the direction of motion. For example, if a box is pushed to the right, the force of friction acts to the left. If the box is pulled to the left, the force of friction acts to the right. The force of friction is always in the opposite direction to the motion of the object.
Contact Force:
The force of friction is a contact force, which means it only occurs when two objects are in contact. When two surfaces are in contact, the force of friction is produced due to the irregularities on the surface. The rougher the surface, the greater the force of friction.
Smooth Surface:
If the surface is smooth, the force of friction is small. For example, if you try to push a book on a smooth table, the force of friction is small, and the book slides easily. On the other hand, if you try to push a book on a rough surface, the force of friction is greater, and the book is harder to move.
Conclusion:
In summary, the force of friction is a contact force that acts in the direction opposite to the direction of motion. It is dependent on the roughness of the surface and is small when the surface is smooth. Therefore, the correct answer is option 'D' which includes all the above-mentioned features of the force of friction.
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Force of frictiona)is a contact forceb)acts in the direction same or o...
D is incorrect because friction always acts opposite to the relative motion
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Force of frictiona)is a contact forceb)acts in the direction same or opposite to direction of motionc)is small if surface are smoothd)has all the above mentioned featuresCorrect answer is option 'D'. Can you explain this answer?
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Force of frictiona)is a contact forceb)acts in the direction same or opposite to direction of motionc)is small if surface are smoothd)has all the above mentioned featuresCorrect answer is option 'D'. Can you explain this answer? for Class 8 2024 is part of Class 8 preparation. The Question and answers have been prepared according to the Class 8 exam syllabus. Information about Force of frictiona)is a contact forceb)acts in the direction same or opposite to direction of motionc)is small if surface are smoothd)has all the above mentioned featuresCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 8 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Force of frictiona)is a contact forceb)acts in the direction same or opposite to direction of motionc)is small if surface are smoothd)has all the above mentioned featuresCorrect answer is option 'D'. Can you explain this answer?.
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