pressure and fluid pressure for IGCSE physics

What is fluid pressure?

• The pressure exerted by a solid at a particular point
• The pressure exerted by a fluid at a particular point
• The pressure exerted by a gas at a particular point
• The pressure exerted by a liquid at a particular point

What is the concept of pressure?

• The force applied to a fluid enclosed in a container
• The weight of the liquid above a point exerting a force on that point
• The buoyant force experienced by an object submerged in a fluid
• The pressure exerted by the Earth's atmosphere

What is pressure?

• The force applied per unit length
• The force applied per unit volume
• The force applied per unit time
• The force applied per unit area

What does Archimedes' principle state?

• An object immersed in a fluid experiences an upward buoyant force equal to the weight of the fluid displaced by the object
• An object immersed in a fluid experiences no buoyant force
• An object immersed in a fluid experiences a buoyant force equal to its weight
• An object immersed in a fluid experiences a downward buoyant force equal to the weight of the fluid displaced by the object

What is the relationship between depth and pressure in liquids?

• Depth and pressure are not related
• As depth increases, pressure decreases
• As depth increases, pressure increases
• Pressure in liquids is constant regardless of depth

What is atmospheric pressure?

• The pressure exerted by the Moon on objects
• The pressure exerted by the atmosphere on objects
• The pressure exerted by the Earth's core on objects
• The pressure exerted by the Sun on objects

Why is understanding pressure and fluid pressure important in physics?

• To explain the concept of buoyancy
• To comprehend the functioning of hydraulic systems
• To understand the behavior of gases
• All of the above

What is the atmospheric pressure at sea level?

• 101.3 kilopascals
• 101,325 pascals
• 101.3 pascals
• 101,325 kilopascals

What does Archimedes' principle deal with?

• The buoyant force exerted on an object is equal to the weight of the fluid displaced by the object
• When pressure is applied to a fluid enclosed in a container, the pressure is transmitted equally in all directions
• The pressure at any given point within a liquid depends on the depth of the point below the surface
• The atmospheric pressure at sea level is approximately 101,325 pascals

How do you compute fluid pressure using the given formula?

• P = hρg
• P = V/A
• P = F/A
• P = mg