Objective Type Answer on Force Class 6 Concise Physics ICSE Solutions Ch-3. In this article you would learn how to solve Objective Type Answer on Force . Visit official Website CISCE for detail information about ICSE Board Class-6.
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Objective Type Answer on Force Class 6 Concise Physics ICSE Solutions
| Board | ICSE |
| Publications | Selina Publication |
| Subject | Physics |
| Class | 6th |
| Chapter-3 | Force |
| Book Name | Concise |
| Topics | Solution of Objective Type Answer |
| Academic Session | 2025-2026 |
Objective Type Answer on Force
Que-1: A body falls downwards because of :
(i) electrical force
(ii) gravitational force
(iii) mechanical force
(iv) magnetic force.
Ans- gravitational force
Reason — It is the force of gravity on a body due to which earth continuously attracts the body towards itself therefore it tends to fall vertically downwards.
Ques-2: A force does not change :
(i) mass
(ii) length
(iii)shape
(iv) state of motion
Ans- mass
Reason — A force does not change the mass of the body on which it is applied.
Que-3: A force to be expressed correctly requires :
(i) only the magnitude
(ii) only the direction
(iii)both the magnitude and direction
(iv)none of the above.
Ans- both the magnitude and direction
Reason — A force is expressed by stating both its magnitude and direction.
Que-4: Friction :
(i) promotes motion
(ii)opposes motion
(iii)acts in the direction of motion
(iv)is always a nuisance.
Ans-opposes motion
Reason — Friction is the force that opposes the relative motion between the two surfaces in contact with each other.
Que-5: Friction is reduced by :
(i)making the surfaces wet
(ii)making the surfaces dry
(iii)making the surfaces rough
(iv)sprinkling sand on the surface.
Ans-making the surfaces wet
Reason — Friction is reduced by making the surfaces wet since when liquid is applied between the surfaces, it fills the fine pores or depressions in the surfaces and thus reduces friction.
Que-6: Friction :
(i)causes wear and tear
(ii)produces heat
(iii)stops a moving body
(iv)has all the above disadvantages
Ans- has all the above disadvantages
Reason — Disadvantages of friction are :
(a)Friction opposes the motion of a body, so it decreases the efficiency (i.e., more force is needed to move a body).
(b)Friction causes wear and tear in the moving parts.
(c)Friction produces heat.
Que-7: Friction is increased if :
(i)an oil is sprayed
(ii)the surfaces are made wet
(iii)the surfaces are made dry
(iv)the surfaces are polished
Ans-the surfaces are made dry
Reason — Friction can be increased by the following three ways :
(a)By making the surfaces rough
(b)By using dry surfaces
(c)By increasing the weight
Fill in the blanks :
Que-1: Force is applied as … …. …. or … …… … .
Ans- Force is applied as push or pull .
Que-2: On squeezing a gum tube, its … ….. … changes.
Ans- On squeezing a gum tube, its shape changes.
Que-3: On pulling a string, its .. …… … increases.
Ans- On pulling a string, its length increases.
Que-4: A moving football when kicked, its … …. …. changes.
Ans- A moving football when kicked, its direction of motion changes.
Que-5: On applying brakes on a moving car, its speed … …… .. .
Ans- On applying brakes on a moving car, its speed slows down .
Que-6: We use ball bearings to .. ….. …. the friction.
Ans- We use ball bearings to reduce the friction.
Que-7: Friction .. …… … motion.
Ans- Friction opposes motion.
Que-8: Lubricants are used to … …. …. friction.
Ans- Lubricants are used to reduce friction.
Que-9: Friction causes .. …… .. of moving parts of a machine.
Ans- Friction causes wear and tear of moving parts of a machine.
Write true or false for each statement :
Que-1: The frictional force acts in the direction of motion of body.
Ans- False because friction is the force that opposes the relative motion between the two surfaces in contact with each other.
Que-2: The unit of weight is kilogram.
Ans- False since weight, being a force, is expressed in gravitational unit kgf or gf whereas kg or g is the unit of mass.
Que-3: A force can change the direction of motion of a moving body.
Ans- True as if a force is applied on a moving body in a direction other than its direction of motion, the direction of motion of the body changes.
Que-4: A force increases the mass of the body when applied on it.
Ans- False because a force does not change the mass of the body on which it is applied.
Que-5: The force of friction is always disadvantageous.
Ans- False as friction is advantageous to us in almost all activities of our life, for example it helps us in walking or rotating a wheel etc.
Que-6: The sliding friction is more than the rolling friction.
Ans- True since static friction > sliding friction > rolling friction
Que-7: Liquids offer more friction than the gases.
Ans- True as gases offer less friction than liquids, while liquids offer less friction than solids.
Que-8: A wet oily road offers more friction than a dry rough road.
Ans- False because a dry rough road offers more friction than a wet oily road due to large numbers of pores or depressions in the dry road as compared to wet oily road.
Match the following columns :
| Column A | Column B | ||
|---|---|---|---|
| (a) | Non contact force | (i) | repel |
| (b) | Like poles | (ii) | kg |
| (c) | Contact force | (iii) | Gravitational force |
| (d) | Mass | (iv) | wear and tear |
| (e) | Weight | (v) | force of friction |
| (f) | Friction | (vi) | kgf |
Ans- (a)-(iii), (b)-(i), (c)-(v), (d)-(ii), (e)–(vi), (f)-(iv)
— : End of Objective Type Answer on Force Class 6 Concise Physics ICSE Solutions :–
Return to:- ICSE Class-6 Concise Selina Solutions
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