Moments and Equilibrium Quiz

What is the role of a pivot in the context of moments?

• It is the point where the force is applied.

• It is the point about which the system turns.

• It is the measure of the force applied.

• It is the distance from the force to the lever.

How can you calculate the moment of a force?

• Force divided by distance

• Force plus distance

• Force times distance

• Force minus distance

In a balanced seesaw, what must be true about the moments?

• The clockwise moment is greater than the anti-clockwise moment.

• The anti-clockwise moment is greater than the clockwise moment.

• The moments are not related.

• The clockwise moment equals the anti-clockwise moment.

If a seesaw has a greater anti-clockwise moment, in which direction will it spin?

• Clockwise

• Anti-clockwise

• It will not spin

• It will spin in both directions

What is the resultant moment if the anti-clockwise moment is 33 Nm and the clockwise moment is 30 Nm?

• 3 Nm clockwise

• 3 Nm anti-clockwise

• 63 Nm clockwise

• 63 Nm anti-clockwise

Where should a 400 N child sit to balance a seesaw with a 300 N child sitting 1.2 meters from the pivot?

• 1.5 meters from the pivot

• 2.0 meters from the pivot

• 1.2 meters from the pivot

• 0.9 meters from the pivot

What is the mystery distance if the anti-clockwise moment is 400 times the distance and equals 360?

• 0.9 meters

• 0.8 meters

• 1.0 meters

• 1.1 meters

How much force is needed at 1.5 meters to balance a seesaw with a 300 N child 1.2 meters from the pivot?

• 200 N

• 300 N

• 240 N

• 360 N

What is the formula to find force if the moment and distance are known?

• Force is moment times distance

• Force is moment plus distance

• Force is distance divided by moment

• Force is moment divided by distance

In equilibrium, what is the relationship between anti-clockwise and clockwise moments?

• Anti-clockwise moment is double the clockwise moment

• Clockwise moment is double the anti-clockwise moment

• There is no relationship

• Both moments are equal