Tag: motion in application

Questions Related to motion in application

A machine _________ be used as a force multiplier as well as speed multiplier simultaneously. Fill in the blank.

physics a little effort, lot of work motion in application common machines introduction to simple machines

  1. Can

  2. Can not

  3. Both

  4. None

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Correct Option: B
Explanation:

A machine is a device by which we can either overcome a large resistive force at same point by applying a small force.

The law of a certain lifting machine is $P =W/50+ 1.5$. The velocity ratio of the machine is 100. Find the maximum possible mechanical advantage and maximum possible efficiency of the machine

physics a little effort, lot of work motion in application common machines introduction to simple machines

  1. 50 and 50%

  2. 50 and 60%

  3. 60 and 60%

  4. 60 and 50%

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Correct Option: A

A gear is a

physics a little effort, lot of work motion in application common machines introduction to simple machines

  1. Plain Wheel

  2. Toothed Wheel

  3. Smooth Wheel

  4. None of these

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Correct Option: B

Which one of the following can also act as a lubricant in machines?

physics a little effort, lot of work motion in application common machines introduction to simple machines

  1. Iron filling

  2. Polish on machines

  3. Flow of water through the machine

  4. Flow of compressed and purified air.

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Correct Option: D
Explanation:

In the machines, the flow of compressed and purified air lowers the friction, hence it acts as a lubricant.