Turning on a pivot

What is the value of x?

• 0.5 m

• 1 m

• 1.5 m

• 2 m

What will happen to the seesaw when both

people get on?

• it will turn in a clockwise direction.

• it will balance

• it will turn in an anti-clockwise direction

• it will turn either in an anticlockwise or

  clockwise direction

Calculate the moment of the force about the

pivot

• 1 Nm

• 2 Nm

• 3Nm

• 4Nm

A seesaw is an example of lever.

Which device works with same principle with

seesaw?

• 
• 
• 
• 

A force of 4 N acts on a lever 2 m from the pivot.

What is the moment?

• 2 Nm

• 4 Nm

• 6 Nm

• 8 Nm

Which point is the pivot?

• A

• B

• C

• D

What can the boys do to balance the seesaw?

• Boy W moves away from F

• Boy W moves closer to F

• Boy P moves closer to F

• Shift F toward boy P

Tendency of a force to rotate a rigid body about

any defined axis is called as

• moment

• force

• pressure

• rotation

Which lever will make it easiest to move the

rock?

• A

• B

• C

• D

Which class of lever is the tool in the figure?

• First

• Second

• Third

• Fourth