TURNING FORCE WORKSHEET

Jack has a weight of 300 N and sits 2.0 m from the pivot of see-saw. Jill has a weight of 450 N and sits 1.5 m from pivot. Who will move down?

• Jack

• Jill

• Both of them

• None of them

What is the anticlockwise moment acting on this crane?

• 80,000Nm

• 100,000Nm

• 120,000Nm

• 140,000Nm

A seesaw is unbalanced with two people of different masses sitting equal distances from the center. Which of the following will result in equilibrium?

• The larger person moving further away from the center.

• Moving the smaller person closer to the center.

• Moving the smaller person further from the center.

• Making the larger person do nothing.

The easiest way to open a heavy door  is by applying the force

• Near the hinges

• In the middle of the door

• At the edge of the door far from the hinges

• At the top of the door

Assuming the system is in equilibrium, calculate the missing distance d

• 3.4 m

• 2.6 m

• 4.4 m

• 1.6 m

How are weight, mass and g related

• W=mg

• m=Wg

• g=Wm

When an object is in equilibrium, which equation is true?

• Clockwise moment = anticlockwise moment

• Clockwise moment + anticlockwise moment = 0

• Clockwise moment / anticlockwise moment = 0

• Clockwise moment + anticlockwise moment = resultant force

the mass of the right side is ------ compared to the left side.

• less

• more

• equal

• none of the above

What is the moment acting on the seesaw?

• 1.6Nm

• 15Nm

• 16N

• 4Nm

The diagram shows a beam. Without any weights, the beam balances at its centre.

Three weights are hung as shown.

At which point does a load of 2 N balance the beam?

• A

• B

• C

• D