Crash Course Fluids

What is considered a fluid?

• Only gases

• Only solids

• Only liquids

• Both liquids and gases

How is density defined?

• Mass multiplied by volume

• Volume multiplied by mass

• Mass divided by volume

• Volume divided by mass

What unit is pressure measured in?

• Kilograms per meter squared

• Meters per second squared

• Newtons per meter squared

• Pascals per Newton

What is the unit of pressure known as?

• Kilogram

• Meter

• Newton

• Pascal

What happens to the pressure at the bottom of a pool compared to near the surface?

• It remains the same

• It increases

• It fluctuates

• It decreases

According to Pascal's Principle, what happens when pressure is applied to a confined fluid?

• The pressure remains the same

• The pressure only increases at the point of application

• The pressure increases by the same amount throughout

• The pressure decreases

How does a hydraulic system benefit from Pascal's Principle?

• By decreasing the output force

• By converting pressure into electrical energy

• By keeping the output force the same as the input force

• By increasing the output force without extra effort

What does a manometer measure?

• Volume of a fluid

• Density of a fluid

• Pressure of a fluid

• Temperature of a fluid

What principle did Archimedes discover?

• The principle of hydraulics

• The principle of pressure

• The principle of buoyancy

• The principle of density

Why does an object float according to Archimedes' Principle?

• Because it displaces water equal to its weight

• Because it has a larger volume than the fluid

• Because it is lighter than the fluid

• Because it is denser than the fluid