# MHSB - 6 - Science :: Simple machines

## Course Content / Subtopic list:

1. An inclined plane
2. A wedge
3. A lever
4. A pulley
5. A wheel and axle
6. Maintenance of machines

## Lesson Plan

[Contributor - Mahika Joshi]

Dear Volunteer,

Please find below the detailed lesson plan and PPT for this chapter in the language mentioned against the respective link. While the lesson plan will give an overall flow of the lesson, the PPT will include lesson flow as well as the presentations for the class.

You may use the content as it is or download and modify them to suit the students requirements.

If you feel any major modifications or additions are carried out by you in the form of adding any new activity, presentations, videos etc. we request you to send the modified version to submitcontent@evidyloka.org for enabling upload the modified version.

The worksheets of the lesson can be accessed from the worksheet tab.

Kindly rate the lesson plan and share your suggestions and comments on the lesson plan in the comments box below. Your valuble suggestions and comments will help us to improve the content.

## Videos

[Contributor - Mahika Joshi]

Lesson Plan version 1.1 videos

[Contributor - Mahika Joshi]

Lesson Plan version 1.1 videos

[Contributor - Mahika Joshi]

Lesson Plan version 1.1 videos

## Images

[Contributor - Kripa S]

http://images.tutorvista.com/cms/images/83/simple-machines.PNG (simple machines 2)

[Contributor - Mahika Joshi]

Lesson Plan version 1.1 Images

https://schooltoolbox.weebly.com/simple--compound-machines.html (simple and compund machines)

[Contributor - Mahika Joshi]

Lesson Plan version 1.1 Images

https://schooltoolbox.weebly.com/simple--compound-machines.html (simple and compund machines)

[Contributor - Mahika Joshi]

Lesson Plan version 1.1 Images

https://schooltoolbox.weebly.com/simple--compound-machines.html (simple and compund machines)

## Activities

[Contributor - Kripa S]

1. Have small groups make their own pulley. Take two small spools of thread and put a pencil through the center. Then tie the ends of a length of string together to create a loop. Have two students hold the pencils and spools and spin them slowly to create a pulley system. Then have another student write a message and attach it to the thread using a paper clip. Use the pulley to pass the message from one person to the other.

2. Tape a pencil to a table. Then place a ruler on top of the pencil to create a lever. Place an object on one end of the ruler and press down on the other end to lift the object up. Try using objects of different weights. What happens? Is it easier or harder to lift heavier objects? Then have your child move the ruler so that the fulcrum is closer or farther away from the load. When does it become easier or harder to lift the load? Does the load ever become too heavy for the lever, and if so, where is the fulcrum?

[Contributor - Mahika Joshi]

Lesson Plan version 1.1 acitivites

1. The students will make inclined planes with boards varying the slope of the board. There will be rubber bands around the book. The students will tie the string to the rubber bands and pull the books up the different inclined planes. They will also pull the books straight up without using the inclined planes. The students will find that it take more work to move an object up an inclined plane with the steepest slope.

2. The students will cut paper with both sharp scissor and dull scissors. They will observe that the sharp scissors will cut better than the dull scissors.

3. The students will make a lever out of the given materials (Wooden ruler, Object to lift, Tape, A can) and explore the relationship of the fulcrum to the load. The students will discovery that it is easier to move an object when the fulcrum is closer to the load.

4. The students will make a pulley with a sewing spool, string, and a pencil. They will use this pulley to lift an object. They will compare lifting the object with the pulley and without the pulley. They will find that it is easier to lift an object with the use of a pulley.

5. The students will push one toy car on its side and the other on its wheels. They will note the difference in distance traveled.

[Contributor - Mahika Joshi]

Lesson Plan version 1.1 acitivites

1. The students will make inclined planes with boards varying the slope of the board. There will be rubber bands around the book. The students will tie the string to the rubber bands and pull the books up the different inclined planes. They will also pull the books straight up without using the inclined planes. The students will find that it take more work to move an object up an inclined plane with the steepest slope.

2. The students will cut paper with both sharp scissor and dull scissors. They will observe that the sharp scissors will cut better than the dull scissors.

3. The students will make a lever out of the given materials (Wooden ruler, Object to lift, Tape, A can) and explore the relationship of the fulcrum to the load. The students will discovery that it is easier to move an object when the fulcrum is closer to the load.

4. The students will make a pulley with a sewing spool, string, and a pencil. They will use this pulley to lift an object. They will compare lifting the object with the pulley and without the pulley. They will find that it is easier to lift an object with the use of a pulley.

5. The students will push one toy car on its side and the other on its wheels. They will note the difference in distance traveled.

[Contributor - Mahika Joshi]

Lesson Plan version 1.1 acitivites

1. The students will make inclined planes with boards varying the slope of the board. There will be rubber bands around the book. The students will tie the string to the rubber bands and pull the books up the different inclined planes. They will also pull the books straight up without using the inclined planes. The students will find that it take more work to move an object up an inclined plane with the steepest slope.

2. The students will cut paper with both sharp scissor and dull scissors. They will observe that the sharp scissors will cut better than the dull scissors.

3. The students will make a lever out of the given materials (Wooden ruler, Object to lift, Tape, A can) and explore the relationship of the fulcrum to the load. The students will discovery that it is easier to move an object when the fulcrum is closer to the load.

4. The students will make a pulley with a sewing spool, string, and a pencil. They will use this pulley to lift an object. They will compare lifting the object with the pulley and without the pulley. They will find that it is easier to lift an object with the use of a pulley.

5. The students will push one toy car on its side and the other on its wheels. They will note the difference in distance traveled.

[Contributor - Mahika Joshi]

Lesson Plan version 1.1 PPT

[Contributor - Mahika Joshi]

Lesson Plan version 1.1 PPT

[Contributor - Mahika Joshi]

Lesson Plan version 1.1 PPT

## Transliteration

 Term Transliterated Term Translated Term machines मशीन्स यंत्रे effort एफ्फोर्ट बल complex machines कॉप्लेक्स मशीन्स गुंतागुंतीची यंत्रे simple machines सिम्पल मशीन्स साधी यंत्रे inclined plane इन्कलाइन्ड उतरण Archimedes Screw आर्किमीडीज स्क्रू आर्किमीडीज स्क्रू wedge वेज पाचर axe एक्स कुऱ्हाड knife नाईफ सुरी chisel चीसेल पटाशी needle नीडल सुई nail नेल खिळा lever लिव्हर तरफ load लोड भार fulcrum फलक्रम टेकू load arm लोड आर्म भारभुजा effort arm एफ्फोर्ट आर्म बलभुजा lever of first order लिव्हर ऑफ फर्स्ट ऑर्डर तरफेचा पहिला प्रकार lever of second order लिव्हर ऑफ सेकण्ड ऑर्डर तरफेचा दुसरा प्रकार lever of third order लिव्हर ऑफ थर्ड ऑर्डर तरफेचा तिसरा प्रकार pulley पुल्ली कप्पी wheel व्हील चाक axle एक्सल आस maintenance of machines मेन्टेनन्स ऑफ मशीन्स यंत्रा ची निगा

## Worksheets

Worksheets [Version 2021]

## Assessments

[Contributor - Tirtha M Anawekar]