UCEED 2017 · Q41 · Dnerd Studio

Question 4 of 6

UCEED 2017 · Part A · Q41

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General KnowledgeMSQ · pick all that apply+4 / no negative

Which of the following statements is/are TRUE about sound?

AAs you tighten a drum skin, the sound made when you beat it gets lower in pitch.BAs the water level in a bottle increases, the sound made when you blow over the top of it gets lower in pitch.CAs the water level in a bottle decreases, the sound you make when you tap on the mouth, periodically gets lower in pitch.DWhen you hit a steel plate to make a loud sound and then hold the edge of the plate tightly between your fingers, the sound becomes higher in pitch.

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