Archimedes and Pascals Principle

Hydraulic systems use natural gas as an enclosed fluid.

• True

• False

To find the pressure on an object you need to calculate:

• pressure = F/A

• pressure = A/F

• pressure = F x A

• pressure = A x F

If a hydraulic system has 1000 N applied to the input piston and has an area of 81 cm², what is the pressure?

• 12.35 Pa

• 12,346 Pa

• 1235 Pa

• 123,457 Pa

The force exerted on a surface divided by the total area over which the force is exerted. Force / surface area

• Net Force
• velocity
• fluid force
• pressure

The upward force exerted by a liquid on an object immersed in or floating on the liquid

• pressure

• normal force

• buoyant force

• gravity

The buoyant force on floating objects equals the weight of the floating object

• true

• false

If an object weighing 50.0 N displaces a volume of water with a weight of 10.0 N, what is the buoyant force on the object?

• 10N

• 60N

• 40N

• 20N

When the weight of an object is greater than the buoyant force, the object will ...

• Sink

• Float

• Expand

• Shrink

Archimedes' Principle states that...

• The buoyant force acting on an object equals the volume of the fluid displaced by the object.

• The buoyant force acting on an object equals the weight (force of gravity) of the fluid displaced by the object.

• The buoyant force acting on an object will always be equal.

What direction is the buoyant force in?

• Right

• Downward

• left

• upward