1. What are we studying today?
3 words: 1:
2: OFF - F 3:

2. Objectives Be able to find the centre of mass of an object.
15 April 2019
Centre of mass
Objectives
Be able to find the centre of mass of an object.

3. Outcomes
All MUST be able to describe what the centre of mass of a body is.
MOST Should be able to apply their knowledge to find the COM for symmetrical objects..
SOME could explain how to find the centre of mass of a thin sheet of a material
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4. Definition:
The centre of mass is that point at which the mass of the body may be thought to be concentrated.
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5. Centre of mass P3 1.2 What is the centre of mass?
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6. Click to find the centre of mass.
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8. Click to find the centre of mass.
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10. Click to find the centre of mass.
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12. Click to find the centre of mass.
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14. Click to find the centre of mass.
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16. Finding the centre of mass
It is easy for symmetrical objects – Draw these shapes and show how to find the Centre of Mass for them :
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17. Non symmetrical objects
Practical
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18. Centre of mass lies somewhere along this line
Step 1
Suspend the object:
Centre of mass lies somewhere along this line
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19. Centre of mass lies where the lines cross
Step 2
Suspend the object from a different point:
Centre of mass lies where the lines cross
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20. Stick in your object that you have found the centre of mass for and explain how you did it.
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21. What can you do?
I most definitely can describe what the centre of mass of a body is.
I should be able to apply their knowledge to find the COM for symmetrical objects.
I may be able to explain how to find the centre of mass of a thin sheet of a material.
Tell me what you thought was easy about this lesson and what was difficult. Anything that would help you in the future?
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