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WorksheetsWaves and Communication
Total questions: 11
Worksheet time: 33mins
Which of the following is the best source of information on how building cell phone towers affects the environment?
Gather information on how much time people spend on their cell phones every day.
Collect data on how many cloudy and sunny days there are.
Study the plants and animals in an area before and after building the cell phone tower.
Gather information on which plants and animals people like best.
When you call your friend using your cell phone, your voice turns into a digital signal that is transmitted. For your friend to hear you, their device must
have a battery that can last at least six hours.
be small enough to fit in their pocket.
be able to decode the digital signal into sound.
have the same phone case as you.
An object can be seen when light
passes through an object.
reflects off the object and reaches your eye.
is not able to pass through an object.
is not very bright.
Which of the following best explains why a person would not able to see an apple if they were holding a piece of paper over it?
The light is not able to reach the apple.
The piece of paper is reflecting the light.
The light is not turned on.
The light is reflecting off the apple but is unable to reach the person's eyes.
Which of the following is an observation that supports the idea that light is needed in order to see objects?
Very bright light is harmful to a person's eyes.
People cannot see objects in a room that has no light.
Objects can be many different colors.
People can see objects in a room that has no light.
Two students are in science lab and each one is holding the end of a rope. Student 1 holds their end still, while Student 2 moves the other end of the rope up and down. What can the students do to INCREASE the wavelength of the wave in that rope?
Use a longer rope.
Let go of the rope.
Student 2 can move the rope more quickly.
Student 2 can move the rope more slowly.
Students want to study how water waves move in their classroom. Which of the following is the most important feature in the design of their investigation?
Making sure there is enough water to dissolve salt.
Adding food coloring to dye the water blue.
Making the water move in regular patterns.
Build models of toy boats.
Students float a cork in some water and make waves in water. Students can measure one part of the wave by measuring what?
how much the cork weighs when dry
the temperature of the water
how far the cork moves up and down
how long it takes before the cork sinks
Water waves are able to carry objects in the direction they are moving only
if the waves are very large.
if the object is very light weight.
where the water meets the beach.
where the water is the deepest.
How does a person see an object?
Light bounces off both the object and the eye
Light bounces off the object and to the person's eye
The eye sees the object directly
The eye sees the object directly while light also bounces off the object
If you are given pictures of different waves, how can you tell which wave has the greatest amplitude?
It would have the lowest trough
It would have the longest wavelengths
It would have the highest crest
It would have the greatest distance between the crest and the trough
