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ICSE Class 10 Force and Machines — practice questions — page 5

Explore 167 free Force and Machines questions in ICSE Class 10 Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Force and Machines questions and exercises with answers

Showing questions 121–150 of 167.

What is the main role of a pulley wheel with a rope?Read the answer and worked solution →What does an ideal fixed pulley do on its own?Read the answer and worked solution →How many rope sections support a single movable pulley?Read the answer and worked solution →For an ideal block and tackle, what sets its mechanical advantage?Read the answer and worked solution →Which point is the axis a lever turns around?Read the answer and worked solution →What does the effort mean in lever terminology?Read the answer and worked solution →What is the output force of a machine commonly called?Read the answer and worked solution →Which condition defines an ideal simple machine?Read the answer and worked solution →For an ideal machine, how does output work compare?Read the answer and worked solution →How does a class II lever’s mechanical advantage compare with one?Read the answer and worked solution →In a class III lever, compare the effort and load arms.Read the answer and worked solution →Which lever class has the fulcrum between effort and resistance?Read the answer and worked solution →What is the effort arm measured from?Read the answer and worked solution →What does a machine trade for a greater output force?Read the answer and worked solution →A machine raises a 240 N load with 60 N effort. What is its mechanical advantage?Read the answer and worked solution →An ideal lever has arm lengths in a 4:1 effort-to-load ratio. What is its mechanical advantage?Read the answer and worked solution →A 25 N effort acts 0.6 m from a fulcrum. What load balances at 0.15 m?Read the answer and worked solution →An ideal machine has MA 5 and receives 40 N effort. What load can it lift?Read the answer and worked solution →What is the ideal mechanical advantage of one fixed pulley?Read the answer and worked solution →Three rope sections support a 450 N moving load. What effort is needed ideally?Read the answer and worked solution →Input force is 50 N and output force is 200 N. Find mechanical advantage.Read the answer and worked solution →A machine receives 500 J and delivers 400 J. What is its efficiency?Read the answer and worked solution →A device takes 120 W input and produces 90 W output. Its efficiency is…Read the answer and worked solution →A lever balances 240 N at a 0.3 m load arm and 1.2 m effort arm. What effort is required?Read the answer and worked solution →An ideal machine moves input 1.5 m while its load moves 0.3 m. Find velocity ratio.Read the answer and worked solution →In an ideal lever with VR 3, how far does the load move relative to the effort point?Read the answer and worked solution →An ideal machine has velocity ratio 4 and effort 35 N. What load is supported?Read the answer and worked solution →A machine has VR 5 and efficiency 60%. What is its mechanical advantage?Read the answer and worked solution →A moving pulley is supported by two rope parts and lifts 300 N. What is ideal effort?Read the answer and worked solution →An effort point moves 90 cm while the lever load rises 30 cm. What is VR?Read the answer and worked solution →

Worked practice questions

What is the main role of a pulley wheel with a rope?

  1. Redirect force or transfer power
  2. Store energy in the rope
  3. Measure a load's mass directly
  4. Keep the moving load still
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Correct answer: A. Redirect force or transfer power

A pulley can redirect a rope force or transfer power.

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What does an ideal fixed pulley do on its own?

  1. Halves the rope distance
  2. Doubles the load force
  3. Removes force from load
  4. Changes the force direction
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Correct answer: D. Changes the force direction

A stationary pulley can change force direction without multiplying its magnitude.

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How many rope sections support a single movable pulley?

  1. One
  2. Four
  3. Three
  4. Two
Show answer and solution

Correct answer: D. Two

A single movable pulley is supported by two parts of the same rope.

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