Physics
Grade-9
Easy

Question

The following picture represents a/an _____.

  1. Open system
  2. Isolated system
  3. Heat
  4. Heat and matter

hintHint:

The ice absorbs heat from the surrounding air, the air becomes cool, and the ice changes into water. In this case, the state of the matter is changing due to the absorption of heat. The internal energy (or ) of ice is increasing as it absorbs energy (Q) from the surrounding air.

The correct answer is: Open system


    The ice cube plus then any water that forms from it is your closed system. This system is very well defined. A closed system is one in which no mass enters of leaves.

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