Senior High School: 11th and 12th Grade - Physics - Forces - Forces And Turning Effects Solution

Q.1.

What is the turning effect of forces?

Q.2.

What is the formula for a moment?

Q.3.

In the above equation, what does represent?

Q.4.

What is a moment measured in?

Q.5.

What is the center of mass of an object?

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It is a point on the object where the whole weight of the object seems to act
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It is the central point of an object
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It is a point just above the top of an object
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The center of mass of an object is never found at a point on an object

Q.6.

What is stability?

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The ability of an object to maintain its original position
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An object which will oscillate around a point after being displaced but will never come to rest
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An object which continues to move away from its position after being displaced
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None of the above

Q.7.

Which statement is true for a body in stable equilibrium?

Q.8.

Which statement is true for a body in unstable equilibrium?

Q.9.

How can the stability of an object be increased?

Q.10.

If the total clockwise moment around a pivot is 10 N m and the total moment about a pivot is zero, what is the size of the counterclockwise moment?