Particle in a Box: a 10

question 27

Multiple Choice

Particle in a box: A 10.0-g bouncy ball is confined in a 8.3-cm-long box (an infinite well) . If we model the ball as a point particle, what is the minimum kinetic energy of the ball? (h = 6.626 × 10^-34 J ∙ s)

• A) 8.0 × J
• B) 3.2 × J
• C) 1.3 × J
• D) zero

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Definitions:

Face Validity

The extent to which a test appears to measure what it is supposed to measure, based on an informal and subjective evaluation.

Content Validity

The extent to which a test measures all aspects of the concept it intends to assess.

Construct Validity

The extent to which a test measures what it claims to measure, often assessed through various methodologies.

Concurrent Validity

A measure of how well a particular test correlates with a previously validated measure.