force and pressure

Identify barometer.

• 
• 
• 
• 

An object weighing 400 N is placed on an area of 100 m² . What is the pressure applied by the object on that area?

• 40000 Pa

• 4 Pa

• 40 Pa

• 0.04 Pa

What is the unit of measurement for pressure?

• pascal
• grams
• milliters
• meters

How do you Calculate Pressure

• Force(N)/Area(m²)

• Force(kg)/Area(mi²)

• Area(m²)/Force(N)

Fluids can also include__ and__. 

• solids and liquids
• solids and gases
• liquids and gases
• liquids

Look at the pressure triangle. How do we calculate the area?

• f ÷ a
• f x p
• p x f
• f ÷ p

What is the instrument that measures air pressure called?

• Graduated cylinder
• Barometer
• Force scale
• Anemometer

In Fig two boys A and B are shown applying force on a block. If the block moves towards the right, which one of the following statements is correct?

• Magnitude of force applied by A is greater than that of B

• Magnitude of force applied by A is smaller than that of B.

• Net force on the block is towards A.

• Magnitude of force applied by A is equal to that of B.

A brick is kept in three different ways on a table as shown in Fig. The pressure exerted by the brick on the table will be

• maximum in position A

• maximum in position B

• maximum in position C

• equal in all cases.

which force is non contact force

• gravitational

• magnetic

• electrostatic

• all of the above