8.4 Centre Of Mass

Question 1

What is the centre of mass

Answer 1

Object is at a point that mass can be thought of as being concentrated

Question 2

Centre of mass found in?(regular object)

Answer 2

Draw the line of symmetery and where they meets are the centre of mass

Question 3

How to find centre of mass?(irregular shapes)

Answer 3

Hang card on thread, centre of mass is always in line to the thread.(1)Use a pen and draw a line along the plumb line(1).Repeat the last step from different point (1).Centre line is where the lines crosses(1).

Question 4

Stability?

Answer 4

Flat and lower, more stable. Tall and thin , unstable