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Worksheetsunit 2 review
Total questions: 23
Worksheet time: 46mins
What could Lily use to make three-dimensional models of her wave drawing? Choose all that apply
a jump rope
sand and a lamp
water and a fan
beaker and a hot plate
While Lily was fishing, she observed that the ocean waves affected the boat’s motion. Which is the
best description of Lily’s observations?
Lily could not feel the boat moving at all.
Lily could feel the boat going up and down.
Lily saw that the boat was moving closer to the shore.
Lily saw that the boat was moving closer to the shore while it moved up and down.
Lily observed that on windy days the waves were bigger than the waves on calm days. What is the best explanation of why waves are bigger on a windy day?
The waves on a windy day have longer wavelengths because they have more energy.
The waves on a windy day have shorter wavelengths because they have less energy.
The waves on a windy day have greater amplitude because they have more energy.
The waves on a windy day have smaller amplitude because they have more energy.
Which statement explains how computers send voice signals?
Sounds are converted to digitized codes of 0s and 1s by a cell tower.
Sounds are converted to digitized codes of 0s and 1s by the computer.
Sounds are converted to digitized codes of dots and dashes by a cell tower.
Sounds are converted to digitized codes of dots and dashes by the computer.
Compare a computer and a radio walkie-talkie for transmitting information over a distance.
A walkie-talkie can send a clearer signal over a longer distance than a computer.
A computer can send a clearer signal over a longer distance than a walkie-talkie.
A walkie-talkie cannot send a voice message, but a computer can send a voice message.
A computer cannot send a voice message, but a walkie-talkie can send a voice message.
How is Morse Code and Binary Code similar?
They both use 1s and 0s to transmit information
They both use dots and dashes to transmit information
They both use a 2 symbol system to transmit information
They both need a human to decode their information.
How are Morse Code and digital signals different?
Morse Code uses only light. Digital code uses only sounds
Morse code is used in cell phones and computers. Digital codes use telegraphs and light.
Morse code is sent by telegraph, sound, and light. Cell phones and computers use digital signals
What is designated by the label A?
Amplitude
Crest
Trough
Wavelength
What is designated by the label B?
Amplitude
wavelength
Trough
crest
What is designated by the label C?
Amplitude
wavelength
Trough
crest
What is designated by the label D?
Amplitude
wavelength
Trough
crest
How do the wave characteristics represented by labels C and D compare?
C represents the amplitude, or the distance from one crest to the next. D represents wavelength, or the distance between the highest point and the middle point of a wave.
C represents the wavelength, or the distance between the highest point and the middle point of a wave. D represents amplitude, or the distance from one crest to the next.
C represents the trough, or the distance from one crest to the next. D represents crest, or the distance between the highest point and the middle point of a wave.
C represents the wavelength, or the distance from one crest to the next. D represents amplitude, or the distance between the highest point and the middle point of a wave.
Which wave has a low amplitude?
wave A
Wave B
Which wave has a high frequency?
wave A
Wave B
Which wave has a high volume?
wave A
Wave B
Which wave has a high pitch?
wave A
Wave B
Which wave has a low pitch?
wave A
Wave B
finding the volume of a wave is the same as finding its ___________.
pitch
Frequency
wavelength
amplitude
finding the pitch of a wave is the same as finding its ___________.
pitch
Frequency
wavelength
amplitude
An analogy compares two unlike things that have similar characteristics. click all of the analogies of a wave.
A wave is like a bunch of hills and valleys.
A wave is like driving on a road in the mountains.
A wave is like the ocean waves
A wave is like sand dunes across the beach or desert.
How can a wave model compare to the real thing it represents? Choose one strengths and one limitations
Strength: The model shows the way the wave is built.
Strength: The model works exactly like the real wave.
Limitation: The model doesn't look like the wave.
Limitation: The model can not show how waves transfer energy.
Waves transfer energy not matter. True or false
true
false
A duck is floating on the water of a pond. Waves are moving across the pond. Will the waves push
the duck across the pond? Explain why or why not.
yes, because waves transfer matter not energy
no, because waves transfer energy not matter.
