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WorksheetsUnit 6, Lesson 3 Test your Knowledge
Total questions: 10
Worksheet time: 10mins
A repetition of a specific sound produced by reflection of sound waves from a surface.
binary code
echolocation
echo
biomimicry
A system of representing a letter, digit, or other character using 0's and 1's
echo
binary code
echolocation
coding
The process of writing a computer program in a language that can be used by a computer
echo
binary code
coding
echolocation
The process of finding an object by using reflected sound
echo
binary code
coding
echolocation
biomimicry
Using nature as a model for human inventions
echolocation
binary code
coding
biomimicy
echo
Why do whales, bats, and dolphins use echolocation?
to scare away predators
to orient themselves and find food
to attract mates
to tell other animals of their species where they are
An echo is heard when sound waves are _____.
changed by the Doppler effect
absorbed by a material
moving through empty space
reflected from a surface
A method of communication that uses short and long signals to represent letters is called ______________.
echolocation
binary code
Morse code
computer programming
A submarine using echolocation to find objects underwater in a similar way to a dolphin is an example of____________.
biomimicry
camouflage
symbiosis
frequency
A method of communication that uses zeros and ones to represent letters and spaces is called ______________.
echo
echolocation
binary code
morse code
