A Certain Sample Carries a Current of 4 a When $\Omega$

question 45

Multiple Choice

A certain sample carries a current of 4 A when the potential difference is 2 V and a current of 10 A when the potential difference is 4 V.This sample:

• A)obeys Ohm's law
• B)has a resistance of 0.5 \(\Omega\) at 2 V
• C)has a resistance of 2 \(\Omega\) at 2 V
• D)has a resistance of 25 \(\Omega\) at 2 V
• E)does not have a resistance

Comprehend the pathway of nerve impulses from the eye to the brain.

Describe the mechanisms of color vision and the theories explaining it.

Recognize the causes and implications of certain visual phenomena (e.g., blind spot, why stars disappear/reappear when looked at directly).

Explain the physiological basis for adaptations in vision under different lighting conditions.

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Definitions:

Around 70%

Typically used to quantify or estimate a proportion close to seventy out of a hundred.

Cognitive Development

The process of growth and change in intellectual abilities, such as thinking, reasoning, and understanding, over the course of a lifetime.

Responsible Stage

In Schaie’s theory, the stage of cognitive development faced during middle adulthood in which ill-defined problems remain the norm, but problem solving must now take into account not only one’s own personal needs and goals but also those of others in one’s life that have become one’s responsibility (spouse, children, coworkers, member of the community).

Acquisition Stage

In Schaie’s theory, the time in cognitive development (during childhood and adolescence) when an individual is sheltered from the majority of life’s responsibilities and can learn a skill or a body of knowledge regardless of whether it has any practical goal or social implications.