When you hear a 4000 Hz tone, hair cells at one point on the basilar membrane become active. What happens when they double their rate of activity?
a. The pitch is the same, but it is louder.
b. The pitch is the same, but it is softer.
c. The pitch is one octave higher
d. The pitch is half an octave higher.
a
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Mach believed that:
a. humans could be investigated objectively only by studying their overt behavior b. introspection was worthless c. humans could be certain only of their own sensations d. all science depends on metaphysical speculation
A(n) ________ is a small group of friends and close acquaintances that provides a secure base and social support for a young person
a. crowd b. identity achievement c. clique d. ethnic-racial identity
Natural rights refer to the concept that
A. one has certain obligations to nature. B. one has certain biological requirements. C. one has certain rights just by virtue of being born. D. one has no rights, all rights belong to the mother earth.
Siegler (1994) disagrees with Piaget's concept of stages. Rather, Siegler suggests that problem-
solving occurs in a. leaps. b. discontinuous steps. c. broad categories. d. sequences.