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Newest Physics Questions

1. A machine has a VR of 6 and is 80%efficiency what effort would be needed to lift a load of 300N with aid of this machine [62.5N
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   2. asked by Abdulrahman Charles
   3. 135 views
2. Which electric component provides energy to the circuit of a flashlight?
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   2. asked by Kk
   3. 55 views
3. What is the best measure of spatial resolution?Choose only ONE best answer. A Axial resolution B Lateral resolution C
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4. How can you strengthen an electromagnet? **Choose all that apply.**a increase the current b increase the number of wire coils c
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5. which method is used to deliver heat and most central heating systemsa Radiation b Conduction c Convection
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6. A generator is a device thata Has fan like blades that turn when pushed b Uses an electromagnet to turn an axle c Increases or
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7. Which causes maglev train to hover above the track?a. attractive magnetic force b. massive batteries c. repellant magnetic force
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8. what is Electrical Circuits
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9. Radio waves can broadcast signals using two methods. In amplitude modulation (AM), the frequencies of the carrier wave are
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10. Classification of solid material
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11. what is electric clouds
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12. Which part of the electromagnetic spectrum is divided into seven ranges of wavelengths and is the part visible to the human eye?
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13. Construction worker uses a pulley system to lift a block. What is one of the purposes of the pulley system
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14. Is teleportation (not the act of it) instantaneous
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15. Which is not a type of simple machine?Group of answer choices A. spring B. screw C. pulley D. wedge
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16. match the item with the current it usesitems: fridge flashlight tv remote oven calculator currents: direct current alternating
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    2. asked by LostCoward
    3. 99 views
17. Determine the stopping distance by these factors: __________.A force of impact, inertia, and brake pressure B field of view,
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    2. asked by AR
    3. 70 views
18. why are metals within most electronic devices and wires? in three sentences explain
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19. What causes a maglev train to hover above the track?(1 point)Responses attractive magnetic force attractive magnetic force
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    2. asked by u dont know me
    3. 59 views
20. What can be done to improve the efficiency of a ramp?(1 point)Responses Make it shorter and steeper. Make it shorter and
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    2. 44 views
21. Which is an example of a load in an electric circuit?(1 point)Responses on-off lever on-off lever wiring wiring speaker speaker
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22. In your own words, what is the definition of ”the efficiency of a machine?”
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    2. asked by uyth
    3. 83 views
23. I feel confident about analyzing and using data to draw conclusions on electric and magnetic fields because
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24. does hz sounds affect tv signal
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25. explain how a phpton operates and what it is, can it go back in time?
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26. If other rife frequencies played will it effec6
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27. A consultant for an electricity provider is preparing a graph of the hourly consumption of electricity in kilowatt-hours for a
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28. how do we increase power output short answer
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    2. 67 views
29. The voltage produced by a generator.Nominal Ordinal Discrete Continuous
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30. List two ways that you can increase the strength of electronic magnet waves explain how each method will effectively increase
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    2. 97 views
31. Liz is designing a device to communicate with light across a distance by shining a flashlight through different-colored
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32. We watched the flight of the hot air balloon and its graceful _______ to the ground.apparatus's poise descent elevation
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33. Explain in 1-3 sentences how micro sound waves are helpful to people
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34. What is the speed of a rocket that travels 9000 meters in 12.12 seconds?
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    2. asked by DanielQuestion 6 is based on the stimulus below:
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35. Materials that have…. Resistance and resist the flow of electric currents are called….
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36. Which color shirt might be best to wear outside on a hot day to stay cool, and why?White, because it reflects most of the light
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37. How does adding a resistor to an electric circuit affect the current? (1 point)The resistor decreases the current by
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    2. 136 views
38. Why is the back of a mirror typically painted with a shiny, smooth coating?To increase the reflectivity and protect the mirror
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39. what is the equation for a machines efficiency
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40. In particle accelerators such as the one shown, fields are employed to separate different subatomic particles. What type or
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41. does a 56hz freq or 2 mhz have a lower frequcny
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42. the enegry produced fby electromagnetic waves is ___
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43. all waves make up electromagnetci what
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44. What's the highest mach
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    2. asked by Z
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45. Give an example of speed
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46. Which of the following describes the change in brightness of a lamp when you add more lamps in series?Adding more lamps in
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47. How can you measure the voltage across the battery?Put the leads of the voltmeter on either side of the battery while the
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48. The level of noise in decibels (n) that is permitted during the night in the United Kingdom can be described as n≤24 . What
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    2. asked by BOThelper
    3. 123 views
49. Smoke precipitators like the one in the image are used to remove particles from the air. How are electric fields applied in the
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    2. 101 views
50. What is one use for infrared waves?A: to power nuclear weapons B: to light desk lamps C: to provide heat for pets or livestock
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51. What is one use for infrared waves?
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52. An electromagnet is a coil of wire with a current running through it. This creates an electromagnetic field. An additional
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53. A particular circuit is made up of a battery, a switch, a buzzer, and wires connecting the components. All of the components are
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54. Identify the electrical properties of materials that are highly conductive and those that are used in insulation. Use one or two
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55. What are supersonic speeds?Responses speeds exactly at the speed of sound speeds exactly at the speed of sound speeds at 343 m/s
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56. Which term is an application of the Doppler effect used by submarines?Responses radar radar scuba scuba radio radio sonar
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57. Freezers should be kept at _______degrees or lower.Group of answer choices 5 10 0 31
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58. Draw a diagram of the cross section of a betatron and state the functions of the magnetic field inside it if properly shaped and
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59. a vehicle travels at 1240km/h for 0.0037 min. determine the distance travelled
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60. What did each charter do in the Big Bang theory/ The workplace Proximity
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61. Sound travels fastest in _
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62. A student is designing a device that can be used for communication. Which two waves on the electromagnetic spectrum can the
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63. How are sound waves different from light waves?
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64. Lever's Quick check
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65. What is one used for for infrared waves?
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66. What is the independent variable to “ A study was done to find if different tire treads affect the braking distance of a car
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    2. asked by Sharlai
    3. 86 views
67. What’s the frequency (in mega hertz) of a beam of red light whose wavelength is 6000 A50,000 MHz 500,000 MHz 5,000,000 MHz
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    2. 101 views
68. How far has it travelled
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    2. asked by Mercie
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69. which statement best defines visible light?responsesresponses a change in direction of light when it strikes an object a change
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    2. asked by lilacmoon
    3. 79 views
70. The water pressure is applied to retina should be no less than 55 pounds Per square inch what any qualities expresses the
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    2. asked by That girl
    3. 112 views
71. Why pipes used to raise fuel in filling stations are narrow? What would happen to the rate of flow if thick pipes were used
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72. Which equation can you use to calculate the mechanical advantage of a simple machine? (1 point)A. MA= Δxi/Δx0 B. MA =Δx0/Δxi
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    2. asked by a helping hand
    3. 106 views
73. Certain waves require a medium, or a material substance, through which to transport energy.True False
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74. Numerous devices utilize the electromagnetic spectrum, such as radios, cell phones, and medical equipment. When devising a
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    2. asked by Disiirl
    3. 186 views
75. 1. A car's speed increases as it merges onto a highway. The car travels at 65 mph on the highway until it slows to exit. The car
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    2. asked by escusmi
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76. make a short sentence with the word accelerate
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    2. asked by nn
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77. It catches the air as it falls and pulls back on the object.”“Humans use a device called a ripcord to trigger the release of
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78. PartofElectromagnetic Spectrum Frequency(Hz) (FoundintheImageof theText) EnergyLevel (PuteitherLowest,Low,Highest, High/
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    2. asked by hi :)
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79. PartofElectromagnetic Spectrum Frequency(Hz) (FoundintheImageof theText) EnergyLevel (PuteitherLowest,Low,Highest, High/
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    2. asked by hi :)
    3. 85 views
80. why do restaurants wash their dishes with hot water?(1 point)Responses The molecules of hot water have more kinetic energy than
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    2. 94 views
81. Radar devices are used by law enforcement to be sure that individuals are driving safely. They tell the officer how fast the
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    2. asked by Kit Kat :3
    3. 133 views
82. Difference between angular and circular
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    2. asked by Taaju
    3. 72 views
83. Numerous devices utilize the electromagnetic spectrum, such as radios, cell phones, and medical equipment. When devising a
    1. 1 answer
    2. asked by dee
    3. 116 views
84. Radar guns are used to measure the speed of moving objects. Radar guns work by projecting radio waves of known frequencies onto
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    2. 94 views
85. Which of the following types of electromagnetic energy carries the most energy?A. radio waves B. X-rays C. ultraviolet light D.
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86. A _______ is a repeating disturbance or vibration that transfers or moves energy from place to place without transporting mass.A
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87. Which of following describe(s) a way in which radio waves can carry energy?A. through outer space, from a spacecraft back to
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88. Which characteristic of a spaceship would change if it traveled to the moon?density weight mass volume
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89. Identify the energy transformations that take place in a battery-powered flashlight: answer
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90. what radiation is utilized to generate energy in nuclear reactors
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91. Isabel is flying a drone. She is controlling the drone so that it descends at a constant rate. After descending for 13 seconds,
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92. Red tape can be used to repair a broken taillight on a car. In one or two sentences, explain how different colors of light are
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93. What is the unit of measurement for work?
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94. Which of the following statements correctly explains the relationship between FM and AM radio waves?Type Answer HERE: FM radio
    1. 5 answers
    2. asked by @~@
    3. 211 views
95. In 3–4 sentences, describe how a particle accelerator works and give an example of the applications of the discoveries made
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    2. 79 views
96. What enables a convex lens to project an image onto a screen?
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97. The current flowing in an inductive single-phase circuit has two components. Name them
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98. A student learns that radio waves are deemed safe, whereas X-rays are considered hazardous. The student examines the provided
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    2. asked by Demon
    3. 107 views
99. Which light wavelengths are detectable by the human eyes?(1 point) Responses ultraviolet waves ultraviolet waves visible waves
    1. 3 answers
    2. asked by @~@
    3. 116 views
100. Three identical cars are driving along the highway when they came to a traffic jam car I get stopped at the bottom of a hill
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