Force and Pressure

What is the equation used to calculate pressure?

• pressure= force/mass
• pressure =mass/volume
• pressure=area/force
• pressure=force/area

Fluids can also include__ and__. 

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

What is the unit of measurement for pressure?

• pascal
• grams
• milliters
• meters

Army tank tracks are useful for travelling through the mud because..

• they decrease the force the vehicle exerts on the ground
• they increase the force the vehicle exerts on the ground
• they decrease the pressure the vehicle exerts on the ground
• they increase the pressure the vehicle exerts on the ground

Atmospheric pressure increases as you move towards lower elevations and decreases as you move into higher elevations.

• True
• False

What pressure does a 4000N horse exert on the ground if each foot is 10cm²?

• 40 N/cm²
• 100 N/cm²
• 400 N/cm²
• 10 N/cm²

Where is pressure the greatest on the dam?

• D
• C
• B
• A

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

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.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

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.

Tags

NGSS.MS-PS2-2

which force is non contact force

• gravitational

• magnetic

• electrostatic

• all of the above

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-4

NGSS.MS-PS2-5