moments in balance Flashcards
1
Q
When a seesaw is balanced, what do the moments of either side look like?
A
- counter clockwise moment due to W1, about the pivot = W1d1
* clockwise moment use to W2, about the pivot = W2d2
2
Q
What is a seesaw an example of?
A
The principles of moments
3
Q
How do the moments of the counter clockwise and clockwise mean that it is balanced?
A
W1d1 = W2d2
4
Q
What is the principle of moments?
A
For an object that is not turning, the sum of all the clockwise moments about any point is equal to the sum of all the counter clockwise moments about that point
5
Q
How can moments help with carrying a heavy load?
A
The load lifted can be moved using a much smaller effort
6
Q
How is the ruler of a seesaw balanced horizontally?
A
By adjusting the position of the two weights
