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(HKPHO)f4be56 - Solutions.pdf
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MC answers 1a, 2c, 3a, 4e, 5b, 6b, 7c, 8a, 9e, 10b, 11a, 12c, 13a, 14d, 15b, 16a, 17d, 18b, 19e, 20e Multiple choice questionsMultiple choice questions (2 points each.(2 points each. Select
one answer in each question. Select one answer in each question.))
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MC-1MC-1 Which of the following provides the largest buoyancy to a totally submerged object?Which of the following provides the largest buoyancy to a totally submerged object?
(A) shallow sea water (B) shallow fresh water (C) deep fresh wat(A) shallow sea water (B) shallow fresh water (C) deep fresh water er
(D) oil (E) oil and fresh water mixture(D) oil (E) oil and fresh water mixture
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(A) (A)\
BB\CC
DD (E (Ec
MC-2MC-2
A sinusoidal wave is traveling A sinusoidal wave is traveling on alongalong a string.a string.
Any point on the string: Any point on the string:
(A)moves in the same direction as the wmoves in the same direction as the waveave (B)moves periodically with a different frequency moves periodically with a different frequency than fromfrom that of the wavethat of the wave (C)moves periodically with the same frequency as the wavemoves periodically with the same frequency as the wave (D)moves circularly with a different speed moves circularly with a different speed than fromfrom that of the wavethat of the wave (E)moves circularly with the same speed as the wavemoves circularly with the same speed as the wave
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_____._____.
AA\
BBcl\
CCcl\
DDcA\
EEcA\
MC-3MC-3 The diagram shows four situations in which a source of sound S and a detector D are either moving or stationary.The diagram shows four situations in which a source of sound S and a detector D are either moving or stationary. The arrows indicate the directio The arrows indicate the direction of motion.n of motion. The speeds are all the same. The speeds are all the same. Detector 3 is stationary. Detector 3 is stationary. Rank the situations according to the frequency detected, Rank the situations according to the frequency detected, from from lowest to highest. lowest to highest.
S D S D S D S D
1 2 3 4
(A)(A) 1, 2, 3, 41, 2, 3, 4 4, 3, 2, 14, 3, 2, 1 (C) (B)1, 3, 4, 21, 3, 4, 2 (C)(D) 2, 1, 4, 32, 1, 4, 3 (D)None ofNone of the above the above (B) (E)
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Do\o S