PAE(08/27/24) - Difference Between Open and Closed Systems

Which of the following best describes a closed system?

• An automobile engine

• A sealed thermos flask

• An ecosystem

• A heating, ventilation, and air conditioning (HVAC) system

Why is a spacecraft’s life support system considered a closed system?

• It allows for the exchange of air and water with space.

• It does not exchange any matter with the environment but controls energy within the spacecraft.

• It exchanges both energy and matter with the external environment.

• It has no internal controls and operates independently.

Which of the following systems exchanges both energy and matter with its environment?

• A closed chemical reaction in a sealed container

• A light bulb

• An automobile engine

• A thermostat

A system that exchanges energy but not matter with its environment is known as:

• An open system

• A closed system

• An isolated system

• A semi-open system

Which of the following is NOT an example of a closed system?

• A sealed container with a chemical reaction

• A thermos

• An ecosystem

• A spacecraft’s life support system

Which of the following systems does not exchange matter with its environment but controls energy within itself?

• An open system

• A closed system

• An isolated system

• A semi-open system

Which of the following is an example of a closed system?

• An ecosystem

• A light bulb

• A thermos

• An automobile engine

Which of the following statements is true for an open system? (Select all that apply.)

• Interacts freely with its environment

• Exchanges both matter and energy with the environment

• Is isolated from its environment

• Does not exchange matter, only energy

What makes a thermos flask an example of a closed system? (Select all that apply.)

• It exchanges energy but not matter with its environment.

• It is designed to prevent the exchange of matter.

• It exchanges both matter and energy with its environment.

• It minimizes energy loss through insulation.

Match the System Type to Its Key Characteristic:

• Exchanges both matter and energy with its environment

• Exchanges energy but not matter with its environment

• Interacts freely with the environment

• Isolates matter while controlling energy exchange