numbers 8-25 please SECOND QUARTER SUMMATIVE TEST on MATTER AND ITS INTERACTIONChoose the letter of the best answer WRITE the letter of your answer.1. Which electromagnetic wave carries more energy than the others?A. MicrowavesB. RadiowavesC. UV radiationD. Visible light2. He theorized that changing magnetic field will produce electric field.A. Faraday3. What is the wavelength of the wave with a frequency of 3 x 109 Hz?A. 1x 10-1 m4. What is the range of frequencies are our eyes sensitive to?A. 3x 109 to 3 x 1011 HzB. 3x 1011 to 4 x 1014 Hz5. Which two waves lie at the ends of the visible spectrum?A. Infrared and Ultraviolet raysB. Radio waves and Microwaves6. A certain radio station broadcasts at a frequency of 675 kHz. What is the wavelength of the radio waves?A. 280 m7. Which property spells the difference between infra-red and ultraviolet radiation?A. Color8. What is the frequency of the radiowave with wavelength of 15 m?A. 2x 105 Hz9. The energy of a photon is directly proportional to its wave frequency. What will happen to the energy if the frequency isdoubled?A. Halved10. Which of the following is correctly arranged from longest to shortest wavelength?A. gamma ray, radio wave, infraredB. microwave, x-ray, gamma ray11. Which type of EM wave has wavelength similar to the size of a 1 Peso coin?A. infrared12. If a photon has a frequency of 100 Hz, how many joules of energy does it cary?A. 6.63 x 10-32 joules B. 6.63 x 10-33 joules C. 6.63 x 10-34 joules D. 6.63 x 10-35 joules13. What type of electromagnetic wave has the lowest wavelength but has the highest energy?A. radiowave14. What can electromagnetic waves travel through that mechanical waves cannot?A. AirB. HertzC. MaxwellD. OerstedB. 1 x 101 mC. 4 x 10-2 mD. 1x 102 mC.4x 1014 to 7.5 x 1014 HzD. 7.5 x 1014 to 3 x 1016 HzC. Radio waves and X-raysD. X rays and Gamma raysВ. 324 mC. 400 mD. 444 mB. Speed in vacuumC. WavelengthD. None of the aboveB. 2 x 106 HzC. 2x 107 HzD. 2x 108 HzB. DoubledC. TripledD. Remained the sameC. ultraviolet, visible light, radio waveD. x-ray, gamma ray, ultravioletB. microwaveC. ultravioletD. visible lightB. ultravioletC. x-rayD. gamma rayB. WoodC. WaterD. Vacuum15. What happens to the frequency of electromagnetic wave if its wavelength increases?A. decreases16. Which pair of EM waves is commonly used for communication?A. X-rays and infraredB. radio waves and microwaves17. All of the following made use of gamma rays except one. Which is it?A. treating tumorsB.treating cancer through the process called radiotherapy18. Which of the devices below can be used to detect aircrafts and ships?A. RADARB. doublesC. increases as wellD. remains the sameC. radio waves and gamma raysD. infrared and microwavesC. sterilization of water in drinking fountainsD. sterilization of medical equipmentB. MRIC. GPSD. communication tower19. What device uses thermal imaging technology to capture the light being emitted as heat by objects in the field of viewA. infrared camera20. Which of the EM waves below is used to remove most forms of microbiological contamination from water?A. Infrared rays21. All of the following are uses of visible light. Which one is not?A.it enables us to see thingsB. gives light to the screen of our devices22. Which kind of wave is use in night vision goggles? A. microwave B. infraredB. remote controlC. fluorescentD. night vision gogglesB. microwavesC. radio wavesD. ultraviolet raysC. for thermal imagingD. used in optical fibersC. gamma ray D. visible ight24. Regular reflection is theA. even, smooth25. The image you see on a plane mirror is placed inA. five26. A plane mirror has alan .surface.D. uneven, roughdirection(s) of real image.reflection of light on a(n).B. even or uneven, rough C. semi-smooth, roughB. multiple directionsD. the sameC. the oppositereflecting surface. A. angledB. concave C. convex D. flat

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As per guidelines , only first question can anwered, so solution for question 8 is given here .…