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Q 1/36
Score 0
What part of the EM spectrum can we see?
30
infrared
microwaves
visible light
x-rays
Q 2/36
Score 0
The EM spectrum is made up of waves with different
30
frequencies
veloicities
refractions
relfections
36 questions
Q.
What part of the EM spectrum can we see?
1
30 sec
Q.
The EM spectrum is made up of waves with different
2
30 sec
Q.
What part of the spectrum has the highest frequency?
3
30 sec
Q.
What part of the spectrum has the longest wavelength?
4
30 sec
Q.
Which property of light causes a rainbow to form?
5
30 sec
Q.
What part of the spectrum has a frequency higher than visible light?
6
30 sec
Q.
The bouncing back of light is called
7
30 sec
Q.
Why does a pencil look broken in a glass of water?
8
30 sec
Q.
Why does the pencil look broken in a glass of water?
9
30 sec
Q.
Why do we see the color red from an apple?
10
30 sec
Q.
What color flame would have a higher temperature (more energy)?
11
30 sec
Q.
An astronomer has observed two stars in space that stationary relative to Earth. The Star A emits strongly in infrared light. The Star B emits strongly in ultraviolet. Which is the BEST explanation of the observation?
12
30 sec
Q.
There are two bright stars in a constellation. One of the stars appears blue. The other star appears red. Which of the following is the BEST explanation for the difference in the stars’ color?
13
30 sec
Q.
What is the best way to measure wavelength?
14
30 sec
Q.
How do you measure amplitude?
15
30 sec
Q.
How you measure frequency?
16
30 sec
Q.
Wave velocity refers to the
17
30 sec
Q.
The wavelength of a wave can be calculated by
18
30 sec
Q.
The frequency of a wave can be calculated by
19
30 sec
Q.
Sound is produced when
20
30 sec
Q.
What types of waves are sound waves?
21
30 sec
Q.
What unit is used to measure volume?
22
30 sec
Q.
Sound waves are longitudinal which means
23
30 sec
Q.
What would impact the speed of a sound wave once it has started?
24
30 sec
Q.
How does air temperature affect the speed of sound?
25
30 sec
Q.
Sound waves move fastest through
26
30 sec
Q.
What speed of sound is most affected by
27
30 sec
Q.
In a longitudinal wave, the energy moves
28
30 sec
Q.
How does the speed of sound in water compare to its speed in air?
29
30 sec
Q.
The reason a fire truck’s siren sounds HIGHER in pitch as it approaches you is because the truck pushes the sound waves together so that the sound wavelengths in front of the truck get shorter. This causes __________.
30
30 sec
Q.
Sounds waves are
31
30 sec
Q.
Which type of signal uses binary
32
30 sec
Q.
There are many benefits to using digital signals to transmit information. Read each of the following statements and decide which of the following is NOT a benefit of using digital signals to transmit information.
33
30 sec
Q.
Read the following statements about the differences between analog and digital signals. Pick the statement that is FALSE.
34
30 sec
Q.
Identify a disadvantage of using analog signals.
35
30 sec
Q.
Which of the following best represents analog signal?
