Turning effect of force and pressure

The turning effect of force results in ____________ motion.

• translational

• rotational

• random

• linear

Which of the following is a unit of the moment of force?

• N

• m

• Nm

• N/m

What magnitude of the force can create 100 Nm of moment of force, from a distance of 0.5m?

• 100N

• 2000N

• 50N

• 200N

Which of the following is defined as pressure?

• Force per unit area

• Force per unit volume

• Force per unit length

• None of these

Which of the following can exert pressure?

• Solids

• Liquids

• Gases

• All of these

Which of the following will experience the highest pressure in the liquid?

• An object having a depth of 25 m

• An object having a depth of 50 cm

• An object having a depth of 50 m

• An object having a depth of 25 cm

What is the unit of force per unit area?

• Newton (N)

• Pascal (Pa)

• Newton metre (Nm)

• Bar meter

What will be the area of contact if 25 N/m2 of pressure is created due to 5 N of force?

• 5 m2

• 2 m2

• 0.5 m2

• 0.2 m2

A nut can be loosen more easily with

• A short spanner because a large turning effect can be produced

• A short spanner because a larger force can be produced.

• A heavy spanner because a larger force can be produced.

• long spanner because a large turning effect can be produced.

A boy of weight 600N sits on the see-saw as shown at a distance of 1.5m from the pivot. What is the force F required at the other end to balance the see-saw?

• 450 N

• 350 N

• 4.5 N

• 200 N