THRUST AND PRESSURE

The amount of force exerted per unit area of a surface

• volume

• pressure

• friction

• buoyancy

Thrust is best described as:

• The area over which a force is applied.

• The force exerted perpendicular to a surface.

• The upward force exerted by a fluid.

• The pressure exerted by a fluid.

Which factor does NOT directly affect the pressure exerted by a liquid at a given depth?

• The density of the liquid

• The acceleration due to gravity

• The shape of the container above the depth

• The depth of the liquid

Why does a sharp knife cut more effectively than a dull knife?

• It has a smaller surface area, leading to greater pressure.

• It has a larger surface area, leading to greater pressure.

• It requires less force.

• It requires more force.

The SI unit for pressure is:

• Newton (N)

• Joule (J)

• Pascal (Pa)
  

• Watt