Other questions in this quiz

2. What is transferred through the National Grid?

  • Gas
  • Coal
  • Electricity
  • Oil

3. Complete this sentence Hotter objects emit ………… infrared radiation than cooler objects

  • Hotter objects emit more infrared radiation than cooler objects.
  • Hotter objects emit more infrared radiation than cooler objects.
  • Hotter objects emit the same amount of infrared radiation than cooler objects.
  • Hot objects do not emit emit infrared at all

4. What does a decrease in wavelength of an object suggest?

  • That it is moving closer to the observer
  • It is moving away from the observer
  • That the object is stationary

5. Formula to calculate effieciency

  • Efficiency = (useful energy out/total energy in)/100
  • Efficiency = useful energy out/total energy in (*100%)
  • Efficiency = [useful energy out*total energy in (*100%)]
  • Efficiency = total energy in/useful energy out (*100%)

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