Pressure

What is the equation used to calculate pressure?

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

What is the unit of measurement for pressure?

• pascal
• grams
• milliters
• meters

Pressure decreases when the surface area over which a force is applied increases

• True
• False

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

• f ÷ a
• f x p
• p x f
• f ÷ p

What is pressure?

• The amount of force exerted on a surface

• The surface area of an object

• The weight of an object

The pressure resulting from a force of 50 N exerted over an area of 5 m² is

• 10 N
• 0.1 N
• 10 N/m2
• 0.1 Pa

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

If a piston has a face of 2cm² and a force of 5N is applied what is the total pressure?

• 2.5N/cm²

• 0.4N/cm²

• 10N/cm²

• 10N/m²

Which of these animals would probably cause the greatest pressure on the ground?

• A fat cow with big feet
• A fat cow with small feet
•  A calf with big feet
• A calf with small feet

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

A force creates a pressure of 12 Pa over an area of 6.0 m². What is the magnitude of this force?

• 72 N

• 12 N

• 6.0 N

• 2 N