Properties of Fluids and Pressure Quiz

What defines a fluid?

• A material that has a definite shape
• A material that can flow and has no definite shape
• A material that cannot change state
• A material that is always liquid

Which of the following are considered fluids?

• Ice cubes
• Water vapor
• Rocks
• Steel

How is pressure defined?

• Total force applied
• Force multiplied by area
• Perpendicular component of force divided by surface area
• Weight of an object

What is the SI unit of pressure?

• Newton
• Kilogram
• Pascal
• Meter

One pascal is approximately equal to the pressure of:

• An elephant standing
• A flat dollar bill on a table
• A heavy book on a desk
• A person's hand

What happens to water molecules when ice melts?

• They stop moving
• They become completely rigid
• They slide past one another
• They disappear

In the kinetic-molecular theory of gases, particles are treated as:

• Having significant size
• Having strong attractive forces
• Taking up no space
• Being completely stationary

What makes liquids different from solids?

• Molecular movement
• Total mass
• Color
• Density

Why do fluids change shape easily?

• They have weak molecular bonds
• Molecules can move freely
• They have no mass
• They are always hot

What determines the pressure exerted by an object?

• Its total weight
• Its color
• Force applied and surface area
• Its temperature