Miya and Zach Were Discussing Whether Coffee Improves Concentration

question 21

Multiple Choice

Miya and Zach were discussing whether coffee improves concentration. Miya told Zach that caffeine did help because a friend of hers usually had trouble concentrating during tests, but one time when her friend drank coffee before taking a test, the friend had no trouble concentrating-and even scored an A on the exam. Which kind of evidence is Miya using?

• A) An anecdote
• B) A statement of authority
• C) A commonsense belief
• D) Empirical evidence

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Definitions:

Amplitude

The magnitude or intensity of a wave's fluctuation, measured from its baseline to its peak, in physical and electrical phenomena.

Relative Motion

The concept that the motion of an object is always determined relative to some other moving or stationary object.

Frequency

The rate at which something occurs over a particular period of time or in a given sample.

Wavelength

The distance between successive peaks or troughs in a wave, often used in the context of electromagnetic waves like light, sound, and radio.