Pressure calculations

What is the formula for pressure?

• Pressure = Mass * Acceleration

• Pressure = Volume / Area

• Pressure = Density / Volume

• Pressure = Force / Area

If a force of 50 N is applied over an area of 5 m², what is the pressure?

• 100 Pa

• 5 Pa

• 25 Pa

• 10 Pa

How does pressure change if the force remains the same but the area decreases?

• Pressure becomes negative

• Pressure remains the same

• Pressure increases

• Pressure decreases

Explain how pressure is distributed on the surface of a solid object.

• Pressure is concentrated on one side of the object

• Pressure is distributed evenly on the surface of a solid object due to the contact area between the object and the surface it rests on.

• Pressure is only distributed on the edges of the object

• Pressure is distributed randomly on the surface of the object

Calculate the pressure exerted by a 200 N force on a surface area of 10 m².

• 100 Pa

• 15 Pa

• 20 Pa

• 25 Pa

Why is it important to consider the area when calculating pressure?

• To confuse individuals studying pressure concepts.

• Because it makes the final result look more accurate.

• To accurately determine the force distributed over a specific area, which is essential for calculating pressure.

• To add unnecessary complexity to the calculation process.

Compare the pressure exerted by a heavy object on a small area versus the same object on a larger area.

• The pressure exerted by a heavy object on a small area is unrelated to the area size.

• The pressure exerted by a heavy object on a small area is the same as on a larger area.

• The pressure exerted by a heavy object on a small area is higher than on a larger area.

• The pressure exerted by a heavy object on a small area is lower than on a larger area.

What units are commonly used to measure pressure?

• Meters per second (m/s)

• Pascals (Pa), atmospheres (atm), millimeters of mercury (mmHg), and pounds per square inch (psi)

• Celsius (°C)

• Kilograms per square meter (kg/m^2)

If the pressure on a surface is 30 Pa and the area is 4 m², what is the force applied?

• 150 N

• 90 N

• 60 N

• 120 N

What happens to the pressure if the area over which a force is applied is doubled?

• Pressure is halved

• Pressure is doubled

• Pressure remains the same

• Pressure becomes zero