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Quiz on Chapter 5 "Using Energy"

Ahmed Almohammed 20 Fragen 5,0 (1 Bewertung)

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Fragen in diesem Quiz (20)

  1. 1Which of the following is a form of Energy?Bild zu Frage 1
    1. AStored Energy
    2. BPotential Energy
    3. CLight Energy
    4. DChemical Energy
  2. 2Calculate how many megajoules of Energy are contained in:

    ( 4 800 000J )    Bild zu Frage 2
    1. A0.48J
    2. B0.48MJ
    3. C4.8J
    4. D4.8MJ
  3. 3What is Energy efficiency?Bild zu Frage 3
    1. AEnergy efficiency is a measure of how much input energy is converted into wasteful output energy.
    2. BEnergy efficiency is a measure of how much input energy is converted into useful output energy.
    3. CEnergy efficiency is a measure of how much output energy is converted into useful output energy.
    4. DEnergy efficiency is a measure of wasteful energy.
  4. 4In Australia, climate change is likely to :Bild zu Frage 4
    1. ACause less intense droughts.
    2. BCause more frequent storms
    3. CAssists the spread of diseases
    4. DDestro the population of different speciesof plants and animals.
  5. 5Improvements in house design can be achieved by: Bild zu Frage 5
    1. AOrientation of windows
    2. BOrientation of the garden
    3. CShading north-facing windows.
    4. DTinting west-facing windows.
    5. EInclude coverings
    6. FInsulating the tv
  6. 6The law of conservation of energy states that energy can never be created or destroyed. It can only get lostBild zu Frage 6
    1. ARichtig
    2. BFalsch
  7. 7The greater proportion of useful output energy, the greater the energy efficiency of the deviceBild zu Frage 7
    1. ARichtig
    2. BFalsch
  8. 8A car travelling down the freeway uses the heat energy in petrol to give it the kinetic energy to keep moving.Bild zu Frage 8
    1. ARichtig
    2. BFalsch
  9. 9Heat naturally flows from regions of [blank_start]higher[blank_end] temperature to regions of [blank_start]lower[blank_end] temperature. In winter, the warm air from a heater or heating system can flow through [blank_start]any cracks or gaps[blank_end] in the walls to the [blank_start]cool air outside[blank_end] or into the cooler garage.Adding [blank_start]insulation[blank_end] to ceilings and between the walls of a home reduces the [blank_start]heat flowing outside[blank_end] in winter and inside in summer. This makes heating and cooling more [blank_start]effective[blank_end] and makes a house more [blank_start]comfortable[blank_end]Bild zu Frage 9
    1. Ahigher
    2. Blower
    3. Cany cracks or gaps
    4. Dcool air outside
    5. Einsulation
    6. Fheat flowing outside
    7. Geffective
    8. Hcomfortable
  10. 10A [blank_start]solar cell[blank_end] converts light energy from the Sun directly into [blank_start]electrical energy[blank_end]. This [blank_start]electrical[blank_end] energy is converted into the [blank_start]kinetic[blank_end] energy of the blades, as well as [blank_start]sound[blank_end] and [blank_start]heat[blank_end] energy produced by the solar fan. Bild zu Frage 10
    1. Asolar cell
    2. Bpanel
    3. Celectrical energy
    4. Dlight energy
    5. Eelectrical
    6. Flight
    7. Gkinetic
    8. Hsound
    9. Iheat

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