A Half-Full 'E' Cylinder Will Last How Long Running at 3

question 13

Multiple Choice

A half-full 'E' cylinder will last how long running at 3 L/min?

• A) About 180 minutes
• B) About 30 minutes
• C) About 4 hours, 13 minutes
• D) About 1 hour, 43 minutes

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Definitions:

Object Permanence

The understanding that objects continue to exist even when they cannot be seen, heard, or otherwise sensed, typically developed in infancy.

Conservation

The principle that certain properties, like volume, mass, and number, remain the same despite changes in the forms of objects, in cognitive development.

Centration

In Piaget’s theory, the tendency of a young child to focus only on one feature of an object while ignoring other relevant features.

Appearance

The way that someone or something looks to others, encompassing aspects of physical presentation and style.