Fluids

Essential Questions

• Why do some objects float while others sink?

• Why is an object’s ability to float an important characteristic?

• What implications to our lives would there be if nothing floated?

• Why don’t we feel the miles of air above us pushing us down?

Learning Objectives

Internal Structure and Density

• Describe the properties of a fluid.

Pressure

• Describe the pressure exerted on a surface by a given force.

• Describe the pressure exerted by a fluid.

Fluids and Newton’s Laws

• Describe the conditions under which a fluid’s velocity changes.

• Describe the buoyant force exerted on an object interacting with a fluid.

Fluids and Conservation Laws

• Describe the flow of an incompressible fluid through a cross-sectional area by using mass conservation.

• Describe the flow of a fluid as a result of a difference in energy between two locations within the fluid–Earth system.

Printable Learning Targets