Arecibo
Surf's Up
Smart Glass
Blob
Magnets
1
Identify each of the following as either digital or analog.
1) Music stored as MP3 files on a phone
2) The time shown with hands on a wall clock
3) The temperature recorded from a liquid thermometer
4) A photograph recorded on film
1) Digital
2) Analog
3) Analog
4) Analog
1
Using the table above, when the amplitude of a wave doubles, it will have _________ times as much energy.
4
1
How is smart glass designed to interact with light when "on"?
The material in the glass allows light to be transmitted so the glass looks transparent/clear.
1
Why do you think the magnet in position 1 moves into the slime faster than the magnet in position 2?
The strength of the magnetic forces increases as the distance between the objects decreases.
1
How would the magnet fall differently if the strength of the magnetic field increased?
The magnet would fall more slowly through the pipe.
2
Identify each of the following as true or false.
1) Energy is stationary and does not move.
2) The energy in a wave travels faster than the wave.
3) Energy can be transferred by the particles of the medium through which a wave travels.
1) False
2) False
3) True
2
Which 2 waves have the same frequency?
Waves B and C
2
Which of the images shown above correctly models a change in brightness when light passes through the glass?
B
2
What is a question that this investigation attempts to answer?
How does the strength of the magnet affect its attraction to slime?
2
Which of the following investigations would best demonstrate the existence of magnetic fields and how they exert forces between objects without touching?
1) Drop a washer inside a pipe made of magnets.
2) Drop a washer inside of pipes of varying lengths.
3) Drop a magnet inside pipes of varying diameters.
4) Drop metallic objects inside pipes of varying materials.
3) Drop a magnet inside pipes of varying diameters.
3
Fill in the blanks.
___________ amplitude waves have _________ energy.
Higher, more
3
Identify the amount of energy in each wave
A = 8
B = 8
C = 32
D = 8
3
Which student model best represents early models of smart glass that would make it appear dark or black?
Monique's model
3
In the image above both the magnet and slime move towards each other. Why do both the slime and magnet move?
Both the magnet and the slime apply a force to each other.
3
Students decided to recreate this experiment, but used plastic pipes instead. What scientific question would they be investigating?
How do different materials change the effect of the magnetic field?
4
Scientists constantly scan and gather signals from outer space. Should this information be stored using analog or digital methods, and why?
Digital, because a lot of information can be stored in a very little space and it won't change or break down over time.
4
Identify 1 similarity and 1 difference between waves B and C.
Wave C has 4 times as much energy, but they would both transfer energy at the same rate.
4
Which of the student models shows the "off" window interacting with light in a way that would prevent objects from the other side from being visible?
Nora and Monique's model
4
Which of the following questions would be the LEAST helpful in determining the factors that affect the strength of magnetic forces between a magnet and iron slime?
1) How does the shape of the magnet affect how quickly it is pulled into the slime?
2) How does the distance between the slime and magnet affect how quickly it is pulled into the slime?
3) How does the orientation of the magnet affect how quickly it is pulled into the slime?
4) How does the size of the magnet affect how quickly it is pulled into the slime?
1) How does the shape of the magnet affect how quickly it is pulled into the slime?
4
Identify an observation in this experiment that would support the idea that magnetic forces are exerted between objects that are not in contact?
A magnet falls slower than other objects through a metal pipe without touching it.
5
Give 3 reasons why digital signals and information are used more today than analog signals and information.
Answers may vary.
The fast speed with which information is transferred from space satellites to Earth.