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Questions and Answers
What is the principle of moment?
What is the principle of moment?
- The total clockwise moment is always greater than the total counter clockwise moment.
- The total counter clockwise moment is equal to the total clockwise moment when the body is in equilibrium. (correct)
- The total clockwise moment is always equal to the weight of the body.
- The total counter clockwise moment is always greater than the weight of the body.
What is the condition for a system to be in equilibrium according to the principle of moment?
What is the condition for a system to be in equilibrium according to the principle of moment?
- The weight of the body is equal to the total counter clockwise moment.
- The weight of the body is equal to the total clockwise moment.
- The total clockwise moment is greater than the total counter clockwise moment.
- The total counter clockwise moment is equal to the total clockwise moment. (correct)
What is the formula for the principle of moment in a simple case?
What is the formula for the principle of moment in a simple case?
- F1 x d1 - F2 x d2 = 0
- F1 x d1 + F2 x d2 = 1
- F1 x d1 = F2 x d2 (correct)
- F1 x d1 + F2 x d2 = 0
A seesaw in a children's park is 6m long which is pivoted at its center. A child with a weight of 200N sits at the end of the seesaw on the right side. Where should her friend with a weight of 300N sit to balance the seesaw?
A seesaw in a children's park is 6m long which is pivoted at its center. A child with a weight of 200N sits at the end of the seesaw on the right side. Where should her friend with a weight of 300N sit to balance the seesaw?
What is the purpose of the principle of moment?
What is the purpose of the principle of moment?
The principle of moment states that the total clockwise moment is equal to the total counter-clockwise moment when a body is in equilibrium.
The principle of moment states that the total clockwise moment is equal to the total counter-clockwise moment when a body is in equilibrium.
A beam balance works on the principle of rotation.
A beam balance works on the principle of rotation.
In equilibrium, the total counter-clockwise moments are less than the total clockwise moments.
In equilibrium, the total counter-clockwise moments are less than the total clockwise moments.
The formula F1 x d1 = F2 x d2 represents a simple case of the principle of moment.
The formula F1 x d1 = F2 x d2 represents a simple case of the principle of moment.
The principle of moment can be applied to a seesaw in a children's park.
The principle of moment can be applied to a seesaw in a children's park.
The friend with a weight of 300N should sit 4m to balance the seesaw.
The friend with a weight of 300N should sit 4m to balance the seesaw.
Study Notes
Principle of Moment
- The principle of moment states that the total counter-clockwise moment is equal to the total clockwise moment when a body is in equilibrium.
- This principle applies to systems in equilibrium, where the total counter-clockwise moments equal the total clockwise moments.
Examples of Principle of Moment
- A beam balance and see-saw work on the principle of moment.
- Example 1: If a system is in equilibrium, then the total counter-clockwise moments equal the total clockwise moments.
- This can be mathematically represented as: F1 x d1 = F2 x d2.
- Example 2: If a system has multiple forces, the total counter-clockwise moments equal the total clockwise moments.
- This can be mathematically represented as: F1 x d1 + F3 x d3 = F2 x d2.
Problem-Solving using Principle of Moment
- A 6m long seesaw is pivoted at its center, and a child with a weight of 200N sits at one end.
- To balance the seesaw, the friend with a weight of 300N should sit at a distance from the pivot point that satisfies the principle of moment.
- Mathematically, this can be represented as: 300 x d1 = 200 x 3, where d1 is the distance from the pivot point.
- Solving for d1, we get d1 = 2m, which is the distance from the pivot point where the friend should sit to balance the seesaw.
Principle of Moment
- The principle of moment states that the total counter-clockwise moment is equal to the total clockwise moment when a body is in equilibrium.
- This principle applies to systems in equilibrium, where the total counter-clockwise moments equal the total clockwise moments.
Examples of Principle of Moment
- A beam balance and see-saw work on the principle of moment.
- Example 1: If a system is in equilibrium, then the total counter-clockwise moments equal the total clockwise moments.
- This can be mathematically represented as: F1 x d1 = F2 x d2.
- Example 2: If a system has multiple forces, the total counter-clockwise moments equal the total clockwise moments.
- This can be mathematically represented as: F1 x d1 + F3 x d3 = F2 x d2.
Problem-Solving using Principle of Moment
- A 6m long seesaw is pivoted at its center, and a child with a weight of 200N sits at one end.
- To balance the seesaw, the friend with a weight of 300N should sit at a distance from the pivot point that satisfies the principle of moment.
- Mathematically, this can be represented as: 300 x d1 = 200 x 3, where d1 is the distance from the pivot point.
- Solving for d1, we get d1 = 2m, which is the distance from the pivot point where the friend should sit to balance the seesaw.
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Description
Learn about the principle of moment, which states that the total counter-clockwise moment equals the total clockwise moment in a system in equilibrium. Examples of beam balance and see-saw are provided.
