What is a single movable pulley? What is its mechanical advantage in the ideal case?

Important Questions on Machines

EASY

10th ICSE

IMPORTANT

Selina Icse Concise Physics For Class 10>Chapter 3 - Machines>EXERCISE-3(C)>Q 7

Name the type of single pulley that has an ideal mechanical advantage equal to $2$ . Draw a labelled diagram of the pulley mentioned by you.

EASY

10th ICSE

IMPORTANT

Selina Icse Concise Physics For Class 10>Chapter 3 - Machines>EXERCISE-3(C)>Q 8

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

100 %

.

MEDIUM

10th ICSE

IMPORTANT

Selina Icse Concise Physics For Class 10>Chapter 3 - Machines>EXERCISE-3(C)>Q 9

In which direction does the force need to be applied, when a single pulley is used with a mechanical advantage greater than one? How can you change the direction of force applied without altering its mechanical advantage? Draw a labelled diagram of the system.

EASY

10th ICSE

IMPORTANT

Selina Icse Concise Physics For Class 10>Chapter 3 - Machines>EXERCISE-3(C)>Q 10

What is the velocity ratio of a single movable pulley?

EASY

10th ICSE

IMPORTANT

Selina Icse Concise Physics For Class 10>Chapter 3 - Machines>EXERCISE-3(C)>Q 11

In a single movable pulley, if the effort moves by a distance

x

upwards, by what height is the load raised?

MEDIUM

10th ICSE

IMPORTANT

Selina Icse Concise Physics For Class 10>Chapter 3 - Machines>EXERCISE-3(C)>Q 12

Draw a labelled diagram of an arrangement of two pulleys, one fixed and other movable. In the diagram, mark the directions of all forces acting on it. What is the ideal mechanical advantage of the system? How can it be achieved?

MEDIUM

10th ICSE

IMPORTANT

Selina Icse Concise Physics For Class 10>Chapter 3 - Machines>EXERCISE-3(C)>Q 13

The diagram below shows a pulley arrangement.
(a) In the diagram, mark the direction of tension on each strand of string.
(b) What is the purpose of the pulley