MEDIUM
10th ICSE
IMPORTANT
Earn 100

Draw a diagram of a block and tackle system of pulleys having a velocity ratio of 5. Also indicate distinctly the points of application and the directions of the load L and effort E. Also mark the tension T in each strand in your diagram.

Important Questions on Machines

EASY
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 3 - Machines>EXERCISE-3(C)>Q 18
Give reason for the following:
In a single fixed pulley, the velocity ratio is always more than the mechanical advantage.
EASY
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 3 - Machines>EXERCISE-3(C)>Q 18
Give reason for the following:
The efficiency of a movable pulley is always less than 100%.
EASY
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 3 - Machines>EXERCISE-3(C)>Q 18
Give reason for the following:
In case of a block and tackle arrangement, the mechanical advantage increases with the increase in the number of pulleys.
EASY
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 3 - Machines>EXERCISE-3(C)>Q 18
Give reason for the following:
The lower block of a block and tackle pulley system must be of negligible weight.
EASY
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 3 - Machines>EXERCISE-3(C)>Q 19

Name a machine which is used to multiply force.

EASY
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 3 - Machines>EXERCISE-3(C)>Q 19
Name a machine that is used to multiply the speed.
EASY
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 3 - Machines>EXERCISE-3(C)>Q 19
Name a machine which is used to change the direction for force applied.
EASY
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 3 - Machines>EXERCISE-3(C)>Q 20
The velocity ratio of a single fixed pulley is always more than one.