Unit 7 Fluids Quiz

What is a fluid?

• A solid that cannot change shape

• A substance with a fixed volume and shape

• A substance that flows and takes the shape of its container

• A material that conducts electricity

Which of the following are considered fluids?

• Water and ice

• Air and glass

• Water and air

• Metal and wood

Which is NOT a property of fluids?

• They can flow

• They have mass

• They always have a fixed shape

• They exert pressure

What is pressure in fluids?

• The weight of a fluid

• Force applied perpendicular to a surface per unit area

• How fast a fluid moves

• Volume of the fluid

Which unit is used to measure pressure in the SI system?

• Newton

• Pascal

• Joule

• Watt

What is 1 Pascal equivalent to?

• 1 N/m²

• 1 kg/m³

• 1 m/s²

• 1 J/kg

How do you calculate pressure in Pascals?

• Pressure = Area × Force

• Pressure = Force / Area

• Pressure = Mass / Volume

• Pressure = Volume / Time

What is PSI?

• Pressure per square inch

• Pounds per square kilogram

• Pressure standard index

• Piston stroke interval

Which of the following is true about pascals and PSI?

• Pascals are the only unit for pressure.

• Pascals are the same size as PSI.

• PSI is not used in the metric system.

• PSI stands for polar snow igloo.

Which is more commonly used in car tire pressure gauges?

• Pascals

• PSI

• Newtons

• Meters