Interesting Questions

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Interesting Questions

Post by sanjana on Sun Jul 04, 2010 6:03 pm


  1. When a Vacuum Cleaner is functioning, what is the Energy Conversion?

  2. Why are the warning lights usually red?

  3. Name one use of echoes - reflection of sound waves?
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sanjana
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Re: Interesting Questions

Post by Sujith on Wed Jul 21, 2010 6:46 am

Simple

  1. Electric to Kinetic Energy
  2. Because they are Bright, and signifies danger. But the answer is the due to the refractivity of light, the red light can be seen faster, hence allowing us to react faster.
  3. SONAR - SOund Navigation And Ranging

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Re: Interesting Questions

Post by kiran on Fri Aug 13, 2010 6:19 pm

Electric to Kinetic Energy
Because they are Bright, and signifies danger. But the answer is the due to the refractivity of light, the red light can be seen faster, hence allowing us to react faster.
SONAR - SOund Navigation And Ranging
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