The Centre of Gravity Hangs Directly Below the Point of Suspensión

Question 1

What can you think of the centre of gravity as?

Answer 1

An object as the point through which the weight of a body acts

Question 2

Why will a freely suspended object swing?

Answer 2

Until it’s centre of gravity is vertically below the point of suspension

Question 3

The objects weight acts at a distance from the pivot, which creates…

Answer 3

A moment about the pivot

Question 4

1) How can you find the centre of gravity of any flat shape?

Answer 4

Suspend the shape and a plumb line from the same point, and wait until they stop moving

Question 5

2) How can you find the centre of gravity of any flat shape?

Answer 5

Draw a line along the plumb lin

Question 6

3) How can you find the centre of gravity of any flat shape?

Answer 6

Do the same thing again, but suspend the shape from a different pivot point

Question 7

4) How can you find the centre of gravity of any flat shape?

Answer 7

The centre of gravity is where your two lines across

Question 8

Why don’t you need to do all that for simple shapes?

Answer 8

You can quickly guess where the centre of gravity is by looking for lines of symmetry