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Andhra Pradesh SSC (Class 10) Machines — practice questions

Explore 26 free Machines questions in Andhra Pradesh SSC (Class 10) Science and Technology. Open each question or exercise to read its content, reference answers and available explanation.

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Machines questions and exercises with answers

Showing questions 1–26 of 26.

Order the steps to find a lever's M.A.Read the answer and worked solution →Mechanical advantage of a machine is the ratio of:Read the answer and worked solution →Velocity ratio of a machine is:Read the answer and worked solution →Efficiency of a machine equals:Read the answer and worked solution →A class I lever has the fulcrum:Read the answer and worked solution →A nutcracker is an example of which class of lever?Read the answer and worked solution →A wheelbarrow is an example of which class of lever?Read the answer and worked solution →A pair of sugar tongs is an example of:Read the answer and worked solution →Single fixed pulley has mechanical advantage of:Read the answer and worked solution →Single movable pulley has ideal mechanical advantage of:Read the answer and worked solution →Efficiency of an ideal machine is:Read the answer and worked solution →Which simple machine multiplies SPEED rather than force?Read the answer and worked solution →In a block and tackle pulley system with n supporting strings, the ideal mechanical advantage is:Read the answer and worked solution →A load of 100 N is lifted by an effort of 25 N. Mechanical advantage is:Read the answer and worked solution →A pulley system has V.R. = 5 and M.A. = 4. Its efficiency is:Read the answer and worked solution →In a real machine, is M.A. always equal to V.R.?Read the answer and worked solution →An inclined plane of length 10 m and height 2 m has velocity ratio:Read the answer and worked solution →A force multiplier is a machine whose:Read the answer and worked solution →A pulley arrangement has 3 movable and 1 fixed pulley. Ideal V.R. is:Read the answer and worked solution →In a Class I lever the effort arm is 60 cm and the load arm is 20 cm. Mechanical advantage is:Read the answer and worked solution →If a 200 N load is lifted 0.5 m using a 50 N effort moving 2 m, find efficiency:Read the answer and worked solution →A boy can apply effort of 100 N. If he wants to lift a 400 N load, the M.A. of the machine he needs is at least:Read the answer and worked solution →Which of the following has M.A. of 1?Read the answer and worked solution →A force multiplier always has:Read the answer and worked solution →In an ideal block and tackle with 5 strings supporting the load, the effort needed to lift 1000 N is:Read the answer and worked solution →Why does increasing the length of an inclined plane reduce effort?Read the answer and worked solution →

Worked practice questions

Order the steps to find a lever's M.A.

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Steps
  1. Identify load and effort
  2. Measure effort arm (distance from fulcrum to effort)
  3. Measure load arm (distance from fulcrum to load)
  4. Use M.A. = load / effort = effort arm / load arm
Instructions
Tap the steps in order to work out the mechanical advantage of a lever.

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Mechanical advantage of a machine is the ratio of:

  1. Speed to time
  2. Effort to load
  3. Load to effort
  4. Force to mass
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Correct answer: C. Load to effort

1. Mechanical advantage (M.A.) tells how much load can be lifted per unit effort. 2. By definition M.A. = load / effort. 3. So the right ratio is load over effort. 4. Larger M.A. means smaller effort needed. _Source: Selina Concise Physics ICSE Class 10, Ch 3 'Machines' (aplustopper.com extract)_

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Velocity ratio of a machine is:

  1. Time taken / distance covered in general usage
  2. Load / effort across all cases
  3. Effort * load across all cases
  4. Distance moved by effort / distance moved by load
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Correct answer: D. Distance moved by effort / distance moved by load

1. Velocity ratio (V.R.) compares displacements. 2. V.R. = distance moved by effort / distance moved by load. 3. Larger V.R. means effort moves a bigger distance for each unit lift of load. 4. So option A is correct. _Source: Selina Concise Physics ICSE Class 10, Ch 3 'Machines' (aplustopper.com extract)_

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