Chapter (2) Pressure

When bodies are immersed in a liquid, there is loss in ____.

• mass

• volume

• weight

The sensitive device for measuring pressure relative to atmospheric pressure is a _____.

• barometer

• hydrometer

• manometer

Hydrometer is a device used to measure the ____ of liquid.

• volume

• density

• mass

Archimedes' principle can be used to find the _____ of irregular shaped object.

• mass

• pressure

• volume

The SI unit for upward thrust is _____.

• pascal

• newton

• kilogram

The atmospheric pressure is 100kPa. The force exerted by the atmospheric pressure on a rectangular surface that measures 0.5m by 0.4m is ____.

• 20kN

• 200kN

• 250kN

The construction of a hydraulic brake is based on _____ law.

• Hooke's

• Pascal's

• Archimedes'

An object will sink in a fluid if the fluid's density is _____ that of the object.

• less

• greater

• equal to

Liquids and gases have _____.

• buoyancy

• elasticity

• ability

Nose bleeding sometimes occurs at place of _____ atmospheric pressure.

• high

• equal

• low