What Or Where Is Radio Waves Used For

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lettehis Electromagnetic wave has the longest wavelea. Gamma Ray (b)

Ask: lette
his Electromagnetic wave has the longest wavele
a. Gamma Ray (b) Radio waves
Microwave radiation is highly useful in which of the
a. Treating cancer cells
b. Sending phone messages
What is the electromagnetic radiation that causes t
a. X-Ray
b. Radio waves
Sun’srays are observedto focus at a point behindhe
as what type of lens?
a. Converging lens
b. Diverging lens
Where should an object be placed in front of
size as the object?
a. At the focus
b. At the center of curvature
fi:​

Answer:

1.A

2.b

3.b

4.A

5.A

sana makatulong

Determine if each sentence states a fact or an opinion.

Ask: Determine if each sentence states a fact or an opinion. Answer also the question after it.
_Facts__1. Telephone, television, and radio all form a telecommunication network which sends and receives messages over long distances.
________2. Telephone calls are turned into electrical signals which are sent along telephone wires.
________3. Telephone service in the country’s rural areas has been fully developed.
________4. Television and radio signals are sent along wires to a transmitter where they are changed into radio waves.
_______5. The Golden Age of radio was probably from about 1925to 1955. Then television apparently took over.
______6 . Television shows seem to interfere in a student’s habits.
______7. The radio news broadcast is the best way of informing the masses on the latest happening in the country.
______8. Listening to radio drama helps one to be imaginative.
______9. A television show is made up of thousands of still pictures.
_____10. These flash so quickly before the eyes that they appear to be one continuous picture with moving images.
B. What is the main idea of the paragraph you’ve read above?( 5 pts.)
A. Television is more popular than than radios.
B. Radio dramas help people become imaginative.
C. Telephone, television and radio are telecommunication networks that send and receive messages.
D. Telephones connect us to our loved ones who live far from us.

Answer:

1. FACTS

2. FACTS

3.Opinion

4.Facts

5. OPINION

6.Opinion

7. FACTS

8. FACTS

9.Opinion

10. OPINION

b. c.

Explanation:

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1. In a radio communication, sound waves are fed to

Ask: 1. In a radio communication, sound waves are fed to the radio station microphone and heard
through a radio. What do you consider the radio station?
a. receiver b. transmitter c. transmitter-receiver d. radio communication
2. The modulator in a radio transmitter is _________________________.
a. Generates carrier waves
b. transforms sound waves to sound signals
c. combines sound signals and carrier waves
d. increases the energy of the carrier waves
3. In a radio receiver, what removes the carrier waves from the sound signals?
a. Receiver antenna b. tuner c. amplifier d. demodulator
4. What is the function of the loudspeaker?
a. to select the frequency received
b. to strengthen the weak sound signals
c. to convert electrical signals to sound waves
d. to increase the intensity of sound
5. In radio communication, for sound to be transmitted and received, the following processes
are involved, A. amplification, B. modulation, C. reception, D. demodulation. Give the order of
the processes.
a. C D A B b. B A C D c. A D A B d. A B C D
6. For radio waves to be used in communication they must be
a. Received and transmitted c. transmitted
b. Transformed d. received
7. The microphone in the radio transmitter transforms the sound wave to ___________.
a. Radio waves b. modulated carrier waves c. carrier waves d. electrical waves
8. Where does the amplitude or frequency modulation take place?
a. modulator b. amplifier c. oscillator d. microphone
9. When the modulated carrier waves pass the amplifier, the energy of the wave is
_____________.
a. decreased b. the same c. increased d. transformed
10. The following are applications of microwaves EXCEPT
a. Sattelite communications b.Texting c. Radar d. TV broadcasting

Answer:

1.a

2.a

3.c

4.d

5.a

Explanation:

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5. The Electromagnetic spectrum have various uses and application. In

Ask: 5. The Electromagnetic spectrum have various uses and application. In where we can use radio
waves?
A. Medical treatment
C. Radio and TV communication
B. Remote Control
D. Fluorescence
6. What type of electromagnetic is used in radar?
A. Infrared waves B. Microwaves C. Radio waves
D. Ultra-violet rays
_7. Which electromagnetic wave carries more energy than the others.
A. MicrowavesB. Radio waves
C. UV radiation
D. visible light
_8. Which of the following is a long-term health effects of radiation?
A. cancer
B. diarrhea
C. fever
D. skin burns
9. The following are effects of radiation EXCEPT
A. offspring are different from parents
C. loss of hair​

Answer:

5.c

6.b

7.c

Explanation:

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1. Radiation exists all around us, and is in two

Ask: 1. Radiation exists all around us, and is in two forms. What are the two forms of Radiation?
A. lon and Cation radiation
C. Sun rays and Gamma rays
B. Ionizing and non-ionizing radiation
D. Radio waves and Gamma rays
2. What do you call the gradual progression from the waves of lowest frequencies to the waves
of highest frequencies?
A. Gamma Rays
C. Electromagnetic Spectrum
B. Radiation
D. Mechanical Waves
3. From among the EM waves, what waves have photons of high energy or high frequency?
A. Radio waves B. Infrared waves C. Gamma rays
D. Microwaves
-4. From among the EM waves, what waves have photons with the lowest energy or lowest
frequency?
A. radio waves
B. X-rays
C. Ultraviolet
d. Visible light
5. The Electromagnetic spectrum have various uses and application. In where we can use radio
waves?
A. Medical treatment
C. Radio and TV communication
B. Remote Control
D. Fluorescence
6. What type of electromagnetic is used in radar?
A. Infrared waves B. Microwaves C. Radio waves
D. Ultra-violet rays
7. Which electromagnetic wave carries more energy than the others.
A. Microwaves B. Radio waves
C. UV radiation
D. visible light
8. Which of the following is a long-term health effects of radiation?
A. cancer
B. diarrhea
C. fever
D. skin burns
9. The following are effects of radiation EXCEPT
A. offspring are different from parents
C. loss of hair​

Answer:

1.B

2.A

3.C

4.B

5.A

6C.

7.D

8.A

9.C

5. The Electromagnetic spectrum have various uses and application. In

Ask: 5. The Electromagnetic spectrum have various uses and application. In where we can use radio
waves?
A. Medical treatment
C. Radio and TV communication
B. Remote Control
D. Fluorescence
6. What type of electromagnetic is used in radar?
A. Infrared waves B. Microwaves C. Radio waves
D. Ultra-violet rays
_7. Which electromagnetic wave carries more energy than the others.
A. MicrowavesB. Radio waves
C. UV radiation
D. visible light
8. Which of the following is a long-term health effects of radiation?
A. cancer
B. diarrhea
C. fever
D. skin burns
9. The following are effects of radiation EXCEPT
A. offspring are different from parents
C. loss of hair​

Answer:

5.c 6.b 7.c

Explanation:

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question niyo po ay sasagutin ako

what or where is radio waves used for​

Ask: what or where is radio waves used for​

Answer:

Image result for what or where radio waves are used for

They are used in standard broadcast radio and television, shortwave radio, navigation and air-traffic control, cellular telephony, and even remote-controlled toys. (For a fuller treatment, see electromagnetic radiation: Radio waves.

Explanation:

Answer:

Radio waves are very widely used in modern technology for fixed and mobile radio communication, broadcasting, radar and radio navigation systems, communications satellites, wireless computer networks and many other applications.

7. Which of these types of electromagnetic radiation has the

Ask: 7. Which of these types of electromagnetic radiation has the shortest wavelength?
A. Infrared
B. Ultraviolet
C. Microware
D. Visible Light

8. Which of these types of electromagnetic radiation has the highest frequency?
A. X-rays
B. Gamma
C. Ultraviolet
D. Visible Light

9. Which of these types of electromagnetic radiation has the lowest energy?
A. Radio waves B. Gamma Ray
C. Microwaves
D. Infrared

10. If Pedro is talking on his cellphone what type of wave is his cellphone using to conne
and communicate?
A. Gamma rays B. Microwaves C. Radio waves D. X-ray

11. A thunderstorm has just passed and the sun is coming out. Maria is at the school to
field and she observes a rainbow at a distance. What type of electromagnetic wav
causing this phenomenon?
A. Infrared Rays B. Ultraviolet Waves C. X-Rays
D. Visible Ligh

12. Where on the electromagnetic spectrum is visible light found?
A. Between radio waves and microwaves. C. Between x-rays and gam
B. Between infrared rays and UV rays.
D. Between x-rays and UV

13. Which of the following is NOT in the visible light spectrum?
A. Ultraviolet Light B. Violet Light C. Blue Light D. Red Ligi

14. Which of the following colors has the shortest wavelength?
A. Orange
B. Yellow
C. Green
D. Red

Answer:

1.B

2C

3A

4.D

5B

6.A

7.D

8 B

Tama yan sagot ko.

5. Which type of EM radiation has the shortestwavelength?A. Gamma

Ask: 5. Which type of EM radiation has the shortest
wavelength?
A. Gamma rays
C. Radio waves
B. Microwaves
D. X-rays
6. Which does not belong to the group?
A. Infrared waves C Sound Waves
B. Microwaves
D. X-rays
7. Which of the following correctly lists electromagnetic
waves in order from longest to shortest wavelength?
@gamma rays, ultraviolet, infrared, microwaves
3. microwaves, ultraviolet, visible light, gamma rays
C. radio waves, infrared, gamma rays, ultraviolet
D. microwaves, infrared, visible light, X-rays
8. Where on electromagnetic spectrum is visible light
found?
A. Between X-rays and gamma rays
B. Between radio waves and microwaves
C. Between X-rays and UV rays
D. Between infrared and ultraviolet
9. Which of the following electromagnetic waves is used
when listening to your favorite radio station?
A. Gamma rays
C. Radio Waves
B. Microwaves
D. X-rays
10. What type of electromagnetic waves is used in Radar?
A. Infrared rays
C. Radio Waves
B. Microwaves
D. Uitra-violet rays
11 What type of electromagnetic waves are used to cook
food, predict the weather and for communications?
A. Infrared​

Answer:

5. A Gamma rays

6. C Sound waves

7. D. microwaves, infrared, visible light, X-rays

8. D. Between infrared and ultraviolet

9. C. Radio Waves

10. C. Radio Waves

11. Microwaves

B. Electric wireC. Metal SpoonD. Rubber37. What type of heat

Ask: B. Electric wire
C. Metal Spoon
D. Rubber
37. What type of heat transfer takes place when there is nising of molecules with higher terr perature and sinking of the
one with low temperature?
A. Conduction
B. Convection
C. Radiation
D. Dispersion
38. What do you call the transfer of heat from one body to another by direct contact?
A. Conduction
B. Convection
C. Radiation
D. Dispersion
39. What type of heat transfer where heat travels in the form of waves that are glven off by hot objects?
A. Conduction
B. Convection
C. Radiation
D. Dispersion
40. Where does heat transfer by convection occur?
A. Only in gases
B. Only in liquids C. Only in fluids
D. in gases, liquids and sollds
41. What is referred to as the relative hotness or coldness of an object?
A Conduction
B. Convection
C. Radiation
D. Temperature
42. Which of the following is a proof that light travels in a straight line?
A. Formation of shadows B. Formation of clouds C. Formation rainbows D. Formation of colors
43. ROYGBIV is the basic component of white light. Which color of light carries the highest unergy?
A Blue
B. Green
C. Orange
D. Red
44. Among all the electromagnetic waves (EM), which has the highest frequency?
A. Infrared radiation
B. Ultraviolet light
C. Gamma rays
D. Radio wave
45. Light is an electromagnetic wave. Which characteristic is common in all electromagneti : waves in a vacuum?
A. Amplitude
B. Frequency
C. Speed
D. Wavelength
46. Which electromagnetic wave is used in a microscope?
A. Visible light
B. Gamma rays
C. Ultraviolet light D. Infrared radiation
47. Which of the following is NOT an electromagnetic wave?
A. Infrared
B. Radio
D. X-ray
C. Sound
48. How does the wavelength of Infrared (IR) compare with the wavelength of ultraviolet (JV) waves?
A. Infrared waves have longer wavelength.
B. Infrared waves have shorter wavelength.
C. IR waves have the same wavelength as the UV waves.
D. IR is not comparable in wavelength with the UV waves.​

Answer:

loe

Explanation:

3. Any form of information a writer uses to support the point she or he is trying to make. a. Citation b. Relevance c. Supporting documents d. Evidence 4. It tells the reader where the writer got the facts. a. Evidence b. Supporting Documents c. Citation d. Relevance 5. It is a step to analyze and evaluate evidence that identify the most important pieces of evidence for that point. a. Analyze b. Evaluate c. validation d. verification 6. It refers to the process of collecting validity evidence to evaluate the appropriateness of the interpretation, uses and decisions based on assessment results. a. Analyze b. Evaluate C. validation d. verification 7. It is a blend of information and epidemic that typically refers to rapid and far reaching spread of both accurate and inaccurate information about something, such as disease. a. Information b. epidemic c.infodemic d. pandemic. 8. It refers to factual information that is used to support an argument. a. evidence b. argument c. validity d. conclusion 9. It is the extent to which a concept conclusion, or measurement is well-founded and likely corresponds accurately to the real world. a. evidence b. argument C. validity d. conclusion 10. It is claim backed up by reasons that are supported by evidence. a. evidence b. argument C. validity d. conclusion 11. Which of the following best explain the word evidence? a. Evidence is a sign which shows that something exists. b. Evidence is someone else’s belief in a thing that happened c. Evidence is a reason to believe that something happens for a reason. d. Evidence is a set of facts, data or information used to support a point/claim. 12. Which of the following defines meaning of relevance? a. It is something useful to proven an opinion. b. It is an opinion that supports the main idea of a text. c. It is the most important piece of evidence for a certain point. d. It is the information that matches an argument and its condition to the topic. 13. Which of the following best describes accuracy in the evidence? a. The data and information are not precise. b. The details are false, improper, inaccurate and inexact. c. The details and information are exact but do not support the daim. d. The evidence is real, acceptable, reliable, and truthful that supports the claim. 14. When can we say that evidence is valid? a. The evidence is valid when it depicts the central. b. The evidence is valid if the details and information are relevant and accurate and its supports the claim /opinion of the writer. b. The valid evidence requires truthful information and details which support the claim/opinion of the writer c. The valid evidence is supporting detail that does not exactly support the opinion/claim of the writer. 15. What is the first thing a reader must do in order to find the valid evidence in a text? a. Identify the problem presented in the text. b. Identify the author is trying to prove. c. Identify specific facts, data, statistics, examples, or other information that supports that point. d. Identify the most important piece of the evidence in the point.

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Not only you can get the answer of what or where is radio waves used for, you could also find the answers of B. Electric wireC., 7. Which of, lettehis Electromagnetic wave, 5. The Electromagnetic, and 1. Radiation exists.