1. A weatherman reports, "the storm waves are about 2 meters high and about 35 meters apart. "what properties of waves is the reporter describing?
Frequency and wavelength
Wavelength and wave speed*****
Amplitude and wavelength
Amplitude and frequency
2. Sound proof rooms take advantage of which property of waves?
Absorption******
Regular reflection
Refraction
Diffuse reflection
3. When the energy of a sound wave is transferrd to a particle of a medium and causes it to vibrate and generate heat, the sound wave is
Reflected
Refracted
Absorbed
Transmitted****
4. The pitch of the siren os a moving fire truck changes from high to low as the fire truck passes by. What property of a sound wave changes as the fire truck goes by?
Amplitude*****
Density
Temperature
Frequency
5. Sonar is used to inspect pipelines and bridge foundations. in this scenario, sonar, takes advantage of the fact that
Sound waves can reflect
Sound waves can diffract
Sound waves can spread out****
Sound waves can refract
6. Which of the following correctly describes a gamma ray?
Long wavelenght and low frequency
Long wavelenght and high frequency*******
Short wavelength and low frequency
Short wavelength and high frequency
7. Which of the following is true about all electromagnetic waves in a vacuum?
They all carry the same speed******
They all travel at the same speed
They all have the same frequency
They all have the same wavelength
8. Fm signals travel as changes in
The speed of the wave****
The amplitude if the wave*****
The frequency of the wave
The loudness of the wave
9. What is the principle role of a tower within a cellar system?
To track data usage****
To transmit signals******
To pinpoint locations
To reduce line noise
10. The image of a mountain can be seen on the surface of calm water. What property of light is demonstrated?
Diffuse reflection
Diffraction
Refraction****
Regular reflection
Dear Andrew,
Here's what I think:
1: 2
2:1
3:4
4:1
5:3
6:2
7:1
8:1,2
9:1,2
10:4
Remember, you do what you think is right. Don't always rely on people to do the work for you. Most of these answer I posted are the same as yours because I don't know anything about this topic and I am doing my best to help you.
You're welcome,
Galaxy Fox Girl
1. The reporter is describing the properties of waves as wavelength and wave speed. To determine this, you can measure the distance between the waves (35 meters) to find the wavelength and observe the height of the waves (2 meters) to understand the wave speed.
2. Soundproof rooms take advantage of the property of waves called absorption. They are designed to absorb sound waves, preventing them from reflecting and causing echoes.
3. When the energy of a sound wave is transferred to a particle of a medium and causes it to vibrate and generate heat, the sound wave is transmitted. This means the energy continues to travel through the medium.
4. The property of a sound wave that changes as the fire truck passes by is its frequency. The pitch of the siren changes from high to low because the frequency of the sound waves produced by the siren changes.
5. Sonar takes advantage of the fact that sound waves can spread out. By emitting sound waves and listening for their echoes, sonar can detect objects underwater or underground by analyzing how the waves spread and reflect off those objects.
6. A gamma ray is correctly described as having a short wavelength and high frequency. Gamma rays have the shortest wavelengths and highest frequencies in the electromagnetic spectrum.
7. All electromagnetic waves in a vacuum, such as in space, carry the same speed. The speed of light in a vacuum is constant, regardless of the frequency or wavelength of the electromagnetic wave.
8. FM signals travel as changes in the frequency of the wave. FM stands for Frequency Modulation, where the frequency of the wave is modulated to carry the information.
9. The principle role of a tower within a cellar system is to transmit signals. Towers are used to send and receive signals in cellular communication systems, allowing for wireless communication between devices.
10. The property of light demonstrated when the image of a mountain can be seen on the surface of calm water is refraction. Refraction occurs when light waves change direction as they pass from one medium to another, in this case, from air to water. This bending of light allows us to see the image of the mountain on the water's surface.