IGCSE Moment & Stability

Turning effect of a force is called ....

• Moment

• Momentum

• Energy

• Impulse

Which statement about pivot is CORRECT?

• Pivot is a length

• Pivot is fixed

• Pivot follows to rotate

• Pivot is always in the middle

Directions of moment are ..........

• Clockwise and to the right

• To the right and to the left

• Clockwise and anti-clockwise

• Downward and upward

Weight of A will make the beam .....

• rotate clockwise

• rotate anti-clockwise

• stationary

• move upward

Moment is .....

• Force x distance

• Force / distance

• Distance / force

• Force - distance

To calculate moment, the distance must be ....

• parallel distance between pivot and force

• perpendicular distance between pivot and force

• parallel distance between pivot and turning point

• perpendicular distance between pivot and turning point

What is the moment?

• 480 Nm

• 30 Nm

• 0.25 Nm

• 0.025 Nm

In equilibrium, what about the resultant moment and resultant force?

• Both must be zero

• Both must be not zero

• Only resultant force must be zero

• Only resultant moment must be zero

What is the meaning of net moment is zero?

• Right force = left force

• Upward force = downward force

• anticlockwise moment = clockwise moment

• anticlockwise moment = 0

Which one is NOT unit of moment?

• Ncm

• Nm

• Nmm

• N/m