Pressure

What is the equation that links force, pressure and area?

• Pressure = Force x Area

• Pressure = Force ÷ Area

• Pressure = Area ÷ Force

• Pressure = Area² ÷ Force

What is the unit for pressure?

• Newtons

• m/s

• N/cm²

• m³

Which of these is the correct equation triangle?

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• 
• 

• 2.5N/cm²

• 0.25 N/cm²

• 10 000 N/cm²

• 4 N/cm²

A wooden box weighs 18N. It has an area of 0.72m². Calculate the pressure it exerts on the floor.

• 25 N/m²

• 12.96 N/m²

• 0.04 N/m²

• 0.25 N/m²

A skiier has a weight of 600N. The area of both skis is 0.4m². Calculate the pressure the skiier exerts on the snow.

• 1000 N/m²

• 0.00067 N/m²

• 1500 N/m²

• 240 N/m²

A force of 200N acts on an area of 2 m². Calculate the pressure.

• 400 N/m²

• 0.01 N/m²

• 200 N/m²

• 100 N/m²

A tomato weighs 1.2 N and exerts a pressure of 0.6 N/cm² on a table. Calculate the area of the tomato touching the table.

• 2 cm²

• 0.72 cm²

• 0.5 cm²

• 1.9 cm²

How do you calculate force?

• force = pressure x area

• force = weight x pressure

How do you calculate area?

• area = pressure x force

• area = force x pressure