Physics XI Notes for Physics Notes

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Viscosity-Old is Gold

  1. Machine parts are jammed in cold days. Why?
  2. During certain windstorm, light roofs are blown off, why?
  3. Define viscosity. Does it depend on temperature?
  4. When a smooth-flowing stream of water comes out of a faucet, it narrows as it falls. Explain why this happens.
  5. Explain why a suction effect is experienced by a person standing close to the platform at a station when a fast train passes.
  6. Why does a flag flutter on strong wind?

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