Pressure Quiz

What is the unit of pressure?

• Newton

• N/kg

Look at the figure below. Which one has smallest pressure on the ground if mass of all blocks are equal?

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• 1.4 Pa

• 14 Pa

• 3500 Pa

• 175 000 Pa

• 0.00004 Pa

• 0.40 Pa

• 4010 Pa

The average pressure of a stiletto heel on the floor is 4300 kPa. If the mass of the woman is 55 kg what is the area of the heel?

A bulldozer has a weight of 30 kN and puts a pressure of 7000 Pa on the ground. What is the total area of the bulldozer's tracks?

A simple barometer consists of a tube full of liquid. The height of the liquid depends on its density and on atmospheric pressure. Mercury has a density of 14000 kg per cubic metre. The height of the mercury in the barometer is 65 cm. What is the air pressure in the room?

• 22 Pa

• 22000 Pa

• 91000 Pa

• 910000 Pa

A student wants to make a barometer using water as the fluid. The density of water is 1000 kg per cubic metre. How high would the water column be on a day when atmospheric pressure is 101 kPa?

• 10.1 m

• 0.10 m

• 0.01 m

• 100 m

The equation which shows relation between pressure, force, and area is . . . .

• Pressure = Force x Area

• Pressure = Area / Force

• Force = Pressure x Area

• Force = Pressure / Area

• 2 Pa

• 200 Pa

• 2000 Pa

• 20000 Pa