A Piece of Gravel in a Stream Is Least Likely

question 43

Multiple Choice

A piece of gravel in a stream is least likely to experience which motion?

• A) sliding along the floor
• B) bouncing along the floor
• C) whirling in an eddy
• D) rolling along the floor

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Definitions:

Absolute Threshold

The minimum intensity of stimulation required to produce a sensory experience or for a stimulus to be detected 50% of the time.

Just Noticeable Difference

The minimum amount by which stimulus intensity must be changed in order to produce a noticeable variation in sensory experience.

Action Potentials

Quick electrical impulses that travel down the axon of a neuron, triggering the release of neurotransmitters at synapses.

Proximal Stimulation

Proximal stimulation refers to the sensory information received directly from stimuli that are in close proximity to the sensory receptors.