Fluid Dynamics and System Mechanics Quiz

The attractive force between molecules of the same substance, like water molecules sticking to each other.

The attractive force between molecules of different substances, like water sticking to glass.

Describes how easily a fluid flows. High viscosity means it flows slowly (honey), low viscosity means it flows easily (water).

The force exerted by a fluid on a surface, measured in Pascals (Pa).

A system that uses a liquid to transfer force, like a hydraulic jack.

The energy, force, or raw materials put into a system. Examples include oxygen for humans, fuel for a truck, or force on a pedal.

The goal or purpose of a system. Examples include movement of a car, learning in a school, or justice in a justice system.

Unintended or undesired outputs of a system. Examples include dizziness from an iPad, population control from a wolf pack, or a car crash.

The ratio of output force to input force. It's a measure of how much a system amplifies force.

The work done by a force is calculated by multiplying the force by the distance over which it acts. It's measured in Joules (J).

A group of parts working together for a specific purpose. Examples: a hammer, a computer, a human body.

A group of organisms or people working together for a shared goal. Examples: a team of workers, a colony of ants, a choir.

A smaller system within a larger system. Examples: The CPU in a computer, a teacher in a school, the engine in a car.

A push or pull that can change the motion of an object. Examples: gravity, friction, muscular force.

The ability to do work. Examples: kinetic energy (motion), potential energy (stored energy), heat energy.

The moving parts of a physical system. Examples: gears, levers, pulleys.

The process of using machines to do tasks automatically. Examples: robots assembling cars, automated checkout systems.

The gradual development of a system over time. Examples: the evolution of smartphones, the development of medical treatments.