Centre of Gravity of Regular Bodies

Q.

In the case of a rectangular or a square lamina, what is the location of the center of gravity?

1. It is anywhere in the interior of lamina.

2. It is the point of intersection of their diagonals.

3. It is located anywhere outside area of the lamina.

4. It is located on any one of the edges of a lamina.

Q.

What do you mean by the center of gravity?

Q. The centre of gravity of a regular object is always at its geometric centre. State True or False.

1. False
2. True

Q.

What are the two main types of gravimeters?

Q. The centre of gravity of a regular object lie at its geometric centre.

1. never
2. sometimes
3. always

Q.

The centre of gravity of a uniform ring is situated at

1. The mid –point of radius of the ring

2. The geometric centre of the ring

3. The geometric circumference of the ring

4. The edge of the ring

Q.

Find the centre of gravity of a triangular disc:

1. (0, 11)

2. (1, 1)

3. (2, 1)

4. (1, 0)

Q.

W

here is the centre of gravity of the following objects situated?. Ring 2. Rhombus 3. Scalene triangle 4. Cylinder.

l

Q.

EXPLAIN HOW YOU WILL DETERMINE THE POSITION OF CENTRE OF GRAVITY EXPERIMETALY FOR A TRIANGULAR LAMINIA .

Q.

Locate centre of gravity in case of

1. Uniform solid sphere.
2. Uniform rod of length l.

Q.

Does density govern over objects even when there is no gravity? why?