English

The mechanical advantage of an ideal single movable pulley is ______. - Physics

Advertisements
Advertisements

Question

The mechanical advantage of an ideal single movable pulley is ______.

Options

  • 1

  • 2

  • less than 2

  • less than 1

MCQ
Fill in the Blanks
Advertisements

Solution

The mechanical advantage of an ideal single movable pulley is 2.

shaalaa.com
  Is there an error in this question or solution?
Chapter 3: Machines - EXERCISE - 3 (B) [Page 68]

APPEARS IN

Selina Physics [English] Class 10 ICSE
Chapter 3 Machines
EXERCISE - 3 (B) | Q 2. | Page 68

RELATED QUESTIONS

Explain the working of a gear system.


Explain how a gear system can be used to obtain Change in direction of rotation. Given one example.


In a gear system, the gear ration of the driving wheel A and driven wheel B is 10:1. To rotate the driven wheel B in the direction of driving wheel A, the driving wheel A is engaged with other wheel C. what should be the gear ratio of the wheels A and C?


Give two reasons why the efficiency of a single movable pulley system is not 100%.


The diagram below shows an arrangement of three pulleys A, B, and C. The load is marked as L and the effort as E.

  1. Name the Pulleys A, B, and C.
  2. Mark in the diagram the directions of load (L), effort (E) and tension T1 and T2 in the two strings.
  3. How are the magnitudes of L and E related to the tension T1?
  4. Calculate the mechanical advantage and velocity ratio of the arrangement.
  5. What assumptions have you made in parts (c) and (d)?


A block and tackle pulley system has a velocity ratio 5. Draw a labelled diagram of this system.  In your diagram, indicate clearly the points of application and the directions of the load and effort.


A type of single pulley is very often used as a machine even though it does not give any gain in mechanical advantage. Name the type of pulley used.


A man raises a load of 360 kgf using a block and tackle system of 3 pulleys. If the efficiency of the pulley system is 60%, what effort is applied by the man?


A ‘block and tackle’ system used 3 pulleys in the lower block and 4 pulleys in the upper block. What is the ‘velocity ratio’ of this system? If the load is to be lifted by a person capable of applying a maximum effort of 1000 N, what is the maximum load than can be lifted under ideal conditions?
The actual maximum load that gets lifted turns out to be 6300 N. What are the values of the actual M.A. and efficiency of the set-up?


Complete the table.

S. No Types of Simple Machine Example
1. Pulley  
2. Wheel and axle  
3. Wedge  
4. Inclined plan  
5. Lever  
6. Screw  

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×