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

PLZ HELP!!

1. Amplitude and wavelength.

4. Freq.

8. The freq.

9. To transmit signals.

Sure! I'd be happy to help you understand the answers to these questions.

1. The weatherman is describing the properties of waves as wavelength and wave speed. The height of the waves, which is mentioned as 2 meters, refers to the amplitude of the wave. The distance between the waves, mentioned as 35 meters, refers to the wavelength of the wave. Therefore, the correct answer is "Wavelength and wave speed."

2. Soundproof rooms take advantage of the property of waves known as absorption. When sound waves encounter certain materials, such as foam or fiberglass, they are absorbed rather than being reflected or transmitted. This absorption helps to reduce the amount of sound that can pass through the walls of the room, making it soundproof. Therefore, the correct answer is "Absorption."

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 said to be absorbed. In this case, the energy of the sound wave is converted into heat energy by the vibrating particle. Therefore, the correct answer is "Absorbed."

4. The pitch of the siren of a moving fire truck changes from high to low as the fire truck passes by. The pitch of a sound wave is determined by its frequency, which refers to the number of vibrations or cycles per second. As the fire truck moves towards you, the sound waves are compressed, resulting in a higher frequency and thus a higher pitch. As the fire truck moves away from you, the sound waves are stretched, resulting in a lower frequency and a lower pitch. Therefore, the correct answer is "Frequency."

5. Sonar, which is used to inspect pipelines and bridge foundations, takes advantage of the fact that sound waves can spread out. Sonar works by emitting sound waves into the water and then detecting the echoes that bounce back. By analyzing the time it takes for the echoes to return, the distance to objects in the water can be determined. Therefore, the correct answer is "Sound waves can spread out."

6. A gamma ray has a short wavelength and a high frequency. Gamma rays are a type of electromagnetic radiation with the shortest wavelength and highest frequency. Therefore, the correct answer is "Short wavelength and high frequency."

7. All electromagnetic waves in a vacuum, such as light waves, travel at the same speed, which is the speed of light. This speed is approximately 3 x 10^8 meters per second. Therefore, the correct answer is "They all carry the same speed."

8. FM signals travel as changes in the frequency of the wave. FM stands for frequency modulation, which means that the frequency of the wave carrying the signal is varied in order to transmit information. Therefore, the correct answer is "The frequency of the wave."

9. In a cellar system, the principle role of a tower is to transmit signals. Cell towers act as relay stations, receiving signals from mobile devices and then transmitting them to the intended recipient, whether it's another mobile device or a communication network. Therefore, the correct answer is "To transmit signals."

10. The image of a mountain can be seen on the surface of calm water due to the property of light called refraction. When light passes from one medium (air) to another medium (water) with a different optical density, it changes direction. This change in direction causes the light rays to bend as they pass through the water, allowing us to see the image of the mountain on the water's surface. Therefore, the correct answer is "Refraction."

I hope this explanation helps! Let me know if you have any other questions.

Sure, I'll help you with these questions step-by-step:

1. The weatherman is describing the properties of waves as wavelength and wave speed. The height of the storm waves (2 meters) refers to the amplitude of the wave, while the distance between the waves (35 meters) refers to the wavelength.

2. Soundproof rooms take advantage of the property of waves called absorption. By using special materials that absorb sound waves, such as foam or fiberglass, the room can prevent sound from entering or exiting.

3. When the energy of a sound wave is transferred to a particle of a medium and causes it to vibrate and generate heat, it is being transmitted. This process occurs when sound waves pass through a medium and transfer energy to the particles within the medium, causing them to vibrate and generate heat.

4. The property of a sound wave that changes as the fire truck goes by is frequency. As the fire truck moves towards you, the sound waves are compressed, resulting in a higher frequency and a higher pitch. As the fire truck moves away from you, the sound waves are stretched out, resulting in a lower frequency and a lower pitch.

5. Sonar takes advantage of the fact that sound waves can travel through water and bounce off objects, allowing the detection and measurement of underwater objects. This property is known as reflection. By emitting sound waves and measuring the time it takes for the waves to reflect back, sonar can create images and maps of underwater structures like pipelines or bridge foundations.

6. A gamma ray has a short wavelength and a high frequency. Gamma rays are a type of electromagnetic radiation that have the shortest wavelengths and highest frequencies in the electromagnetic spectrum. They are produced by radioactive decay or nuclear reactions and have a wide range of applications, such as medical imaging and cancer treatment.

7. All electromagnetic waves in a vacuum (such as space) travel at the same speed, which is the speed of light. This speed is approximately 299,792,458 meters per second. Different electromagnetic waves have different frequencies and wavelengths, but they all travel at this constant speed.

8. FM signals travel as changes in the frequency of the wave. FM stands for Frequency Modulation, which means the frequency of the wave is modulated or changed in order to carry the information (such as music or speech).

9. The principle role of a tower within a cellular system is to transmit signals. In a cellular network, towers or base stations are used to send and receive signals between mobile devices and the central network. The towers act as communication hubs, relaying signals and facilitating communication between mobile devices.

10. The property of light that is demonstrated when the image of a mountain can be seen on the surface of calm water is refraction. When light waves pass from one medium (air) to another medium (water), they change speed and direction. This causes the light waves to bend as they enter the water, leading to the formation of an image on the water's surface.

I hope these steps help clarify the concepts for you! Let me know if you have any more questions.