A Spring Whose Natural Length Is 20 Cm Is Stretched

question 99

Multiple Choice

A spring whose natural length is 20 cm is stretched to a length of 35 cm by a 2-N force. Find the work done in stretching the spring.

• A) 0.15 J
• B) 30 J
• C) 0.7 J
• D) 40 J
• E) 0.3 J

---

Definitions:

American Psychological Association

The leading scientific and professional organization representing psychology in the United States, dedicated to advancing the creation, communication, and application of psychological knowledge to benefit society.

Debriefing

A process used following research or activities, particularly in psychology, where participants are explained the purposes and findings of the study, addressing any misconceptions or emotional impact.

Objective Introspection

Objective Introspection is a process in psychological research where individuals examine their own thoughts and feelings in a systematic, objective manner, aiming to analyze the inner processes of the mind.

Wilhelm Wundt

Considered the father of experimental psychology, he founded the first formal laboratory for psychological research in Leipzig, Germany.