A Force of 30 N Is Required to Maintain a Spring

question 69

Multiple Choice

A force of 30 N is required to maintain a spring stretched from its natural length of 12 cm to a length of 15 cm. How much work is done in stretching the spring from cm to cm?

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Definitions:

Sensitive Period

A point in development when organisms are particularly susceptible to certain kinds of stimuli in their environments, but the absence of those stimuli does not always produce irreversible consequences.

Synaptic Pruning

The process during brain development where extra neurons and synaptic connections are eliminated to increase the efficiency of neuronal transmissions.

Neurons

Specialized cells of the nervous system that transmit signals throughout the body; key components in the function of the brain, spinal cord, and peripheral nerves.

Axons

Long, threadlike parts of nerve cells along which impulses are conducted from the cell body to other cells.