Force Exe-1B MCQs Concise Class 10 ICSE Selina Solutions. Answer of Multiple choice Questions of Class 10 Physics of latest publications. Visit official website CISCE for detail information about ICSE Board Class-10.
Force Exe-1B MCQs Concise Class 10 ICSE Selina Solution
| Board | ICSE |
| Class | 10 |
| Subject | Physics |
| Book Name | Concise |
| Publications | Selina Publishers |
| Exe-1B | Centre of Gravity |
| Topics | Solution of MCQs |
| Session | 2025-26 |
Force Exe-1B MCQs
Concise Class 10 ICSE Selina Solution
Que-1: With respect to center of gravity, which of the following statements are correct?
1.The position of center of gravity depends on its shape.
2.It is not necessary that the center of gravity of a body should always be within the material of the body.
3.A body of weight W can be considered as a point particle of weight W at its center of gravity.
4. All of the above
Ans. All of the above
the center position of gravity depends on its shape i.e., on the distribution of mass.
that will be not necessary that the center of gravity of a body should always be within the material of the body.
Que-2:The center of gravity of a body is the point about which the algebraic sum of moments of weights of all the particles constituting the body is:
1.1
2.> 1
3.< 1
4.0
Ans. 0
when center of body of gravity is the point about the algebraic sum of moments of weights of total presence particles constituting the body is zero.
Que-3: The center of gravity of a uniform ball is
1.at its geometrical center
2.at its bottom
3.at its topmost point
4.at any point on its surface
Ans. at its geometrical center
Hence, its a uniform ball (a sphere with uniform density), because center of gravity is coincide with geometrical center. This is because the mass of the ball is eventually distributed throughout the volume, leading from the symmetrical distribution of mass around its center.
Que-4: The center of gravity of a hollow cone of height h is at distance x from its vertex where the value of x is:
1.h/3
2.h/4
3.2h/3
4.3h/4
Ans. 2h/3
the gravity center of a hollow cone is at a height h/3 from the base:, from the vertex the height is:
h-h/3=3h-h/3=2h/3.
Que-5: Where should the center of gravity of a body be located for stable equilibrium?
1.above the base
2.near the geometric center
3.can be anywhere
4. both (1) and (2)
Ans. both (1) and (2)
the center of gravity of a body should be located above the base of the body. Additionally, For stable equilibrium, it should be as close as possible to the shape of geometric center.
Que-6: Two objects have the same mass but different shapes. Which object would have a higher center of gravity?
1.the one with a larger base
2.the one with a smaller base
3.both would have the same center of gravity
4.it depends on the material of the objects
Ans. the one with a smaller base
The distribution of mass is spread out over a larger area, lower the center of gravity spread out over a larger area, whereas that with a smaller base will have a higher center of gravity because the mass is concentrated over a smaller area.
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