# Class 10 FRANK Solutions Physics Chapter 1.3 - Simple Machines

Find out what is an ideal machine with TopperLearning’s Frank Solutions for ICSE Class 10 Physics Chapter 1.3 Simple Machines. Relearn the definitions of terms such as velocity ratio, single movable pulley etc. Practise diagrams related to pulley arrangement and learn the fascinating science behind the functioning of a pulley. In addition, revise the relation between efficiency, mechanical advantage and velocity ratio.

For your ICSE Class 10 Physics board exam, you will benefit more if you take self-assessments to improve your revision sessions. We have online practice tests for Physics, sample question papers and previous years’ Physics question papers to support you with self-evaluation.

## Simple Machines Exercise 28

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(i) To multiply force

(ii) To obtain a gain or decrease in speed

(iii) To change to direction of application of force in a convenient direction

### Solution 7

(ii) A lever is used to change the point of application of force.

(iii) A pulley is used to change the direction of application of force.

(iii) Gears are used to multiply speed.

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## Simple Machines Exercise 29

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(a) A jack is used to multiply force.

(b) Gears are used to multiply speed.

(c) A pulley is used to change the direction of application of force.

### Solution 16

(i) To change the direction of application of force to a convenient direction.

(ii) To multiply force.

Yes, a pulley is a force multiplier

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