A Car Accelerates from Rest on a Straight Road

question 4

Multiple Choice

A car accelerates from rest on a straight road. A short time later, the car decelerates to a stop and then returns to its original position in a similar manner, by speeding up and then slowing to a stop. Which of the following five coordinate versus time graphs best describes the motion?

• A) I
• B) II
• C) III
• D) IV
• E) V

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Definitions:

Extinguished CR

In classical conditioning, this refers to the gradual weakening and eventual disappearance of the conditioned response when the conditioned stimulus is repeatedly presented without the unconditioned stimulus.

Conditioned Response

A learned reaction to a previously neutral stimulus that becomes elicited by the stimulus after repeated associations with an unconditioned stimulus.

Hypodermic Needle

This refers to a slender, hollow needle attached to a syringe, used for injecting substances into the body or extracting fluids from it.

Unconditioned Stimulus

A stimulus that naturally triggers a response without the need for prior learning.