Class 7 Science Online Tests
Sound Waves and Echoes MCQ (Multiple Choice Questions) PDF Download
Apps:
The Sound waves and echoes Multiple Choice Questions (MCQ Quiz) with Answers PDF (Sound Waves and Echoes MCQ PDF e-Book) download to practice Grade 7 Science Tests. Study Sound Waves Multiple Choice Questions and Answers (MCQs), Sound Waves and Echoes quiz answers PDF to learn online classes courses. The Sound Waves and Echoes MCQ App Download: Free learning app for sound absorption, all around sounds, speed of sound test prep for online education programs.
The MCQ: The use of echo to measure distance is known as; "Sound Waves and Echoes" App Download (Free) with answers: Echo destination; Echolocation; Echo displacement; Echo dictation; to learn online classes courses. Solve Sound Waves Quiz Questions, download Apple eBook (Free Sample) for elementary school graduation certificate.
Sound Waves and Echoes MCQ (PDF) Questions Answers Download
As compare to humans, bats can hear sounds only with
- low frequency
- low pitch
- low amplitude
- high pitch
The use of echo to measure distance is known as
- echo destination
- echolocation
- echo displacement
- echo dictation
Some fishing boats use echo to
- calculate the depth of water
- detect any predator
- detect shoal of fish
- eggs of fish
Ships send a small
- pulse to the sea bed
- vibration to the tower
- piece of food to fish
- beam of sound to check the depth
The longer, the echo takes, the
- shallower the water
- the deeper the water
- the denser the water
- the warmer the water
Class 7 Science Practice Tests
Sound Waves and Echoes Learning App: Free Download Android & iOS
The App: Sound Waves and Echoes MCQs App to learn Sound Waves and Echoes Textbook, 7th Grade Science MCQ App, and Earth Science MCQ App. The "Sound Waves and Echoes" App to free download iOS & Android Apps includes complete analytics with interactive assessments. Download App Store & Play Store learning Apps & enjoy 100% functionality with subscriptions!
