P1.5.3 Centre of gravity

0.0(0)
Studied by 0 people
call kaiCall Kai
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
GameKnowt Play
Card Sorting

1/3

encourage image

There's no tags or description

Looks like no tags are added yet.

Last updated 3:07 AM on 5/14/26
Name
Mastery
Learn
Test
Matching
Spaced
Call with Kai

No analytics yet

Send a link to your students to track their progress

4 Terms

1
New cards

What is centre of gravity?

  • The point at which the mass of the object can be considered to be concentrated

2
New cards

How does location of center of mass determine its stability?

  • If the line vertically down from the COM (centre of mass) is directed outside of the base, it will topple

  • If the line vertically down from the COM is directed to the base, the object is stable

<ul><li><p>If the line <span>vertically down from the COM (centre of mass) is directed outside of the base, it will topple</span></p></li><li><p><span>If the line vertically down from the COM is directed to the base, the object is stable</span></p></li></ul><p></p>
3
New cards

How to find COM of regularly shaped objects?

  • Located at a point along the line of symmetry (must have more than 1 line of symmetry)

<ul><li><p>Located at a point along the line of symmetry (must have more than 1 line of symmetry)</p></li></ul><p></p>
4
New cards

Describe an experiment to determine the position of the centre of gravity of an irregularly shaped plane lamina

  1. A small hole is made at the top of the plane lamina.

  2. The plane lamina is hung from this hole to allow it to pivot.

  3. The plumb line is also hung from here and will fall vertically downwards.

  4. A dotted line is draw along the plumb line to the mass.

  5. The second hole can be made anywhere close to the edge of the shape and does not specifically need to be at the bottom.

  6. The above steps are repeated.

  7. The centre of gravity is where the lines cross.

<ol><li><p>A small hole is made at the top of the plane lamina.</p></li><li><p>The plane lamina is hung from this hole to allow it to <span style="font-family: inherit; line-height: inherit; font-size: inherit;"><span>pivot</span></span>.</p></li><li><p>The plumb line is also hung from here and will fall vertically downwards.</p></li><li><p>A dotted line is draw along the plumb line to the mass.</p></li><li><p>The second hole can be made anywhere close to the edge of the shape and does not specifically need to be at the bottom.</p></li><li><p>The above steps are repeated.</p></li><li><p>The centre of gravity is where the lines cross.</p></li></ol><p></p>