By the End of the Primary Circular Reaction Substage, Piaget's

question 23

Multiple Choice

By the end of the primary circular reaction substage, Piaget's son Laurent was

• A) discovering his hands by chance.
• B) moving his hands in order to see them.
• C) looking for toys that his father had hidden.
• D) imitating his father's facial expressions.

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Definitions:

Internal Input Instructions

Specialized instructions in a PLC program to manipulate internal bits or flags that are not directly linked to physical inputs.

Central Processing Unit

The primary component of a computer or digital system that performs the interpretation and execution of instructions.

Backplane

A printed circuit board, located in the back of a chassis, that contains a data bus, power bus, and mating connectors for modules to be inserted in the chassis.

Field Input Devices

Equipment or sensors that capture and transmit data from the external environment into a processing system for analysis and action.