Centre of Gravity of Regular Objects

Q. Where does the center of gravity of the atmosphere of the earth approximately lie?

1. At the centre of the Earth
2. At a height equal to one-third the radius of Earth above the Earth's surface
3. At a height equal to the radius of the Earth above the earth's surface
4. At height equal to half the radius of the Earth above the Earth's surface

Q.

The centre of gravity of an object always lies within the body of the object.

1. True

2. False

Q.

The point at which the whole weight of the body appears to be concentrated is called

1. centroid

2. centre of gravity

3. central point

4. inertial point

Q.

The center of gravity of a uniform wire is at the middle of its length and when the same wire is bent into the form of a circle, the center of gravity still remains at the same point.

1. True

2. False

Q.

The centre of gravity of a uniform ball is

1. at its geometric centre

2. at its bottom

3. at its topmost point

4. at any point on its surface

Q.

The position of centre of gravity of a body remains unchanged even when the body is deformed.

1. False

2. True

Q.

Which of the following is/are true about the centre of gravity?

1. It is the point at which the mass of a body is assumed to be concentrated.

2. A body can have multiple centres of gravity.

3. The centre of gravity of an object need not always coincide with its geometric centre.

4. A body can be balanced at its geometrical centre if it coincides with the centre of gravity

Q.

A body is more stable if its centre of gravity is closer to the base than when it is further away.

1. True

2. False

Q.

Which of the following is/are true about the centre of gravity?

1. It is the point through which the weight of the body can be assumed to act.

2. A body can have multiple centres of gravity.

3. The centre of gravity of an object need not always coincide with its geometric centre.

4. A body can be balanced at a single point if it coincides with the centre of gravity.

Q.

The center of gravity of a regular object is always at its geometric center.

1. True

2. False