Sound MCQs, sound quiz answers 6 to learn high school online courses. Reflection (echo) multiple choice questions (MCQs), sound quiz questions and answers for for online school degrees. Ultrasound, speed of sound, sound waves in physics, sound wave and speed test for high school teacher certification.

Learn high school physics multiple choice questions (MCQs): speed of sound in solids is, with choices 20 times that in gas, 10 times that in gas, 5 times that in gas, and 15 times that in gas for online school degrees. Free physics study guide for online learning reflection (echo) quiz questions to attempt multiple choice questions based test.

MCQ: A ship sends ultrasound that returns from seabed and is detected after 3.42 s. If speed of ultrasound through seawater is 1300 ms-1, then distance of seabed from ship would be

1. 3000 m
2. 2600 m
3. 2200 m
4. 2800 m

B

MCQ: Speed of sound in solids is

1. 10 times that in gas
2. 20 times that in gas
3. 5 times that in gas
4. 15 times that in gas

D

MCQ: Humans can hear sound up to highest frequency of 20,000 Hz. If wavelength of sound in air at this frequency at temperature of 20° would be

1. 5.7×10-2
2. 3.7×10-2
3. 1.7×10-2
4. 2.7×10-2

C

MCQ: Speed of sound in air depends on the

1. chemical conditions
2. Physical conditions
3. pitch
4. Area

B

MCQ: Sound waves can be transmitted by any

1. medium
2. vacuum
3. both medium and vacuum
4. none of the above

A