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WorksheetsLilys Wave Unit Study Guide
Total questions: 23
Worksheet time: 46mins
A wavelength is the distance between________
Point A and Point B
Two crests
New York to Miami
Three trufts
A wave crest is the topmost point of a wave.
True
False
What is the frequency of a wave?
The distance between two crests
The length of a wave
The speed a wave travels
The hight of a wave
The aptitude is...
The distance between the midpoint and the crest
The distance between the bottom point and the top point
The distance between two crests
The distance between the bottom point and the crest
When something vibrates it carries sound waves in all directions.
False
True
The frequency of a high-frequency wave is...
Slow
Low
Big
Fast
We measure sound in decibels.
True
False
The amplitude of a soft-sounding wave is low.
False
True
What is reflection?
When waves bounce off an object. Like an echo.
When waves get absorbed into an object. Like sunlight.
Which of the following statements about absorption is true?
(Choose THREE)
Foam stapled to the walls of a room to help with recording is an example of absorption.
Absorption is when the sound does NOT bounce off an object.
Absorption is when sound is absorbed into the object.
Absorption is when sound is reflected off the object.
Wave transmission is when sound waves move along, they are not reflected or absorbed.
True
False
When all light passes through an object it is...
Transparent
Translucent
Opaque
None of the above
When SOME light can pass through an object it is...
Transparent
Translucent
Opaque
None of the above
When NO light can pass through an object it is...
Transparent
Translucent
Opaque
None of the above
In the ear, the cochlea changes sound waves into messages your brain can understand.
True
False
The outer ear serves as a funnel to catch sound waves and push them to the inner ear.
True
False
What PARTS of the ear transfer sound waves from your eardrum to the cochlea?
(CHOOSE THREE)
The hammer
Tympanic cavity
The anvil
The stirrup
Binary code is a series of 1's and 0's that can be decoded to send a message.
False
True
All messages need a _________ and a _________ to be successfully transferred.
Electricity and internet
Connector and conducter
Sender and a receiver
All digital images are made up of pixels
True
False
One of the earliest ways to send messages was through...
Hieroglyphics
Scrolls
Carrier pigeons
Morse code
Morse code is a series of ___________ and ________ used to send signals long distances.
1's and 0's
Dashes and dots
Peanut butter and jelly
Lines and circles
When designing a code, it is essential that you test and revise until your code can be transmitted correctly by the received
True
False
