5) Pressure

When you increase your depth under water, the water pressure on your body

• increases

• decreases

• stays the same

What is the unit of measurement for pressure?

• pascal
• grams
• milliters
• meters

An object will float on water if it is

• less dense than water.

• more dense than water.

• the same density as water.

The amount of force pushing on an area is the definition of....

• Fluid
• Pressure
• Barometer
• Pascal

Pressure is measured in what units

• Newtons
• m/s
• Pascals
• Moles

What does pressure measure?

• Strength
• Force exerted on a given area of surface

If the horse reared up on 2 legs what effect would it have on the pressure?

• it will exert half the pressure it did before
• it will exert the same pressure it did before
• it will exert twice the pressure it did before
• it will exert four times the pressure it did before

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

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

How would you calculate the force to be used on a brake of area 0.5cm² if the slave cylinder has a 4cm² area and needs 800N to stop the car.

• 4 x 800 x 0.5
• 800/0.5 x 4
• 0.5 x 4 x 800
• 800 x 0.5 /4

Tags

NGSS.HS-PS2-1