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## Mechanics Physics Chapters For NEET

Mechanics is the area of science concerned with the behavior of physical bodies when subjected to forces or displacements, and the subsequent effects of the bodies on their environment. The scientific discipline has its origins in ancient Greek with the writings of Aristotle and Archimedes. During the early modern period, scientists such as Galileo, Kepler, and Newton laid the foundation for what is now known as classical mechanics. It is a branch of classical physics that deals with particles that are either at rest or are moving with velocities significantly less than the speed of light. It can also be defined as a branch of science which deals with the motion of and forces on objects. The field is yet less widely understood in terms of quantum theory.
This branch of physics involves a much more intermix of concepts as well as numerical compared to other units. They both are intertwined at a much deeper level. You also need a good knowledge of trigonometry for solving the problems posed here. The more problems you practice in it - the more perfect you become. Use this to analyze various everyday aspects of your life and you will be more confident.

Important Mechanics topics in physics for neet

● nature of physical laws;
● Need for measurement: Units of measurement,
● system of units;
● SI units, fundamental and derived units.
● Length, mass and time measurements,
● accuracy and precision of measuring instruments;
● Errors in measurement
● Dimensions of physical quantities, dimensional analysis and its applications .
The main topics of focus from this chapter are:-
● Units and Dimensions
● Errors
● 1-D motion
● 2-D motion ( projectile motion)
● 3-D motion (Relative motion)
● Laws of motion and friction
● Center of mass. Momentum
● Work, Power and Energy
● Gravitation forces
● Rotation forces

## Units And Dimensions

### Introduction:

There is a difference between unit and dimension. A dimension is a measure of a physical variable while a unit is a way to assign a number or measurement to the dimension. For example, length is a dimension, but it is measured in units of feet(ft) or meters (m)

### Chapter Analysis:

The past 11 years have seen 11 question being asked from this chapter, without a single year skipping. So, one question has been asked every year and that is the exact number we should be expecting in the coming papers from this chapter. The below given graph will illustrate the above-mentioned analysis:

Year 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009
Questions 1 1 1 1 1 1 1 1 1 1 1

The important topics to be covered from this topic are:
• Trigonometry
• Differentiation
• Integration
• Algebra
• Co-Ordinates

### Tips and Tricks:

• NEET Syllabus has its base in the NCERT Textbooks and this chapter is well explained in that. So, the student must be thorough with the material present in the NCERT Book. Here is the link to NCERT PDF version of the chapter:
• This chapter is filled with small details and keywords. Hence making Flash Cards will be the best way to keep them to your memory.
• The past year questions must be practiced a number of times so that they should be on your fingers.
• Practice a large number of questions from this topic and leave no stones unturned to make this chapter one of your strengths.
• Revision every week will be appreciated as the different terms and keywords are quite likely to slip out of the mind if not revised periodically.

## Errors

### Introduction:

The process of evaluating the uncertainty associated with a measurement result is often called uncertainty analysis or error analysis. The complete statement of a measured value should include an estimate of the level of confidence associated with the value. Properly reporting an experimental result along with its uncertainty allows other people to make judgements about the quality of the experiment, and it facilitates meaningful comparisons.

### Chapter Analysis:

Only one question has been asked from this chapter in the past 11 years, and that too in 2013. So, the chances of a question occurring from this chapter in the coming paper is really low. Being a low-weighted chapter, we should not be expecting a single question from this chapter in the coming paper.
The below given graph will illustrate the above-mentioned analysis:

Year 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009
Questions 0 0 0 0 0 0 1 0 0 0 0

The important topics to be covered from this chapter are:
• Errors
• Propagation of Error

### Tips and Tricks:

1. Reading the NCERT shall be the first step towards understanding this chapter. Here is the link to the NCERT PDF version of this chapter:
2. Making Mind Maps is a must for this chapter as the topic is easily forgotten by many students.
3. Proper revision is also compulsory. Revision every fortnight will be good as the bulk chapters will make this chapter be easily forgotten is not revised.
4. One must refer to online videos for clearer understanding of the topic.

## Vectors and Scalars

### Introduction:

A quantity is either a vector or a scalar. These two categories can be distinguished from one another by their distinct definitions. Scalars are quantities that are fully described by a magnitude alone. Vectors are quantities that are fully described by both a magnitude and a direction.

### Chapter Analysis:

No question has been asked form this chapter in the past 11 years, however the concepts taught in this chapter are directly used in various other topics. Hence, this chapter must not be overlooked. Coming to the number of questions, we should not expect anything from this chapter.
The below given graph will illustrate the above-mentioned analysis:

Year 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009
Questions 0 0 0 0 0 0 0 0 0 0 0

The important topics to be covered from this chapter are:
• Vectors and Scalars
• Parallelogram Law and Triangle Law
• Polygon Law

### Tips and Tricks:

1. Reading the NCERT shall be the first step towards understanding this chapter. Here is the link to the NCERT PDF version of this chapter:
2. Making Mind Maps is a must for this chapter as the topic is easily forgotten by many students.
3. Proper revision is also compulsory. Revision every fortnight will be good as the bulk chapters will make this chapter be easily forgotten is not revised.
4. One must refer to online videos for clearer understanding of the topic.

## One Dimensional Motion

### Chapter Analysis:

The past 5 years have had 5 questions being asked from this chapter without skipping a single year. In the years between 2009-2013, a total of 11 questions were asked with the number of questions peaking 2010 when it rose to 3. The other years had 2 questions. This chapter falls in the low-weighted category and hence, we must not be expecting anything more than 1 question from this chapter in the coming years.
The below given graph will illustrate the above-mentioned analysis:

Year 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009
Questions 1 1 1 1 1 0 2 2 2 3 2

The important topics to be covered from this chapter are:
• Equations of Motion
• Frame of Reference

### Tips and Tricks:

• Reading the NCERT shall be the first step towards understanding this chapter. Here is the link to the NCERT PDF version of this chapter:
• Making Mind Maps is a must for this chapter as the topic is easily forgotten by many students.
• Proper revision is also compulsory. Revision every fortnight will be good as the bulk chapters will make this chapter be easily forgotten is not revised.
• One must refer to online videos for clearer understanding of the topic.

## Projectile Motion

### Introduction:

Projectile Motion is a form of motion experienced by an object or particle that is thrown near the Earth’s surface and moves along a curved path under the action of gravity only. This curved path was shown by Galileo to be a parabola. The study of such motions is called ballistics, and such a trajectory is a ballistic trajectory.

### Chapter Analysis:

The last 5 years have had 1 question being asked every year without fail. However, in 2014, no questions were asked. However, before 2014, a total of 9 questions were asked in a span of 5 years, with the count going low only in 2011. With 14 question in the past 11 years, this chapter falls in the low-weighted category and we should be expecting not more than 1 question from this chapter.
The below given graph will illustrate the above-mentioned analysis:

Year 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009
Questions 1 1 1 1 1 0 2 2 1 2 2

The important topics to be covered from this chapter are:
• Horizontal Projectile Motion
• Inclined Projectile
• Equations of Projectile
• Half Range Projectile

### Tips and Tricks:

• The students must begin with reading the NCERT portion as it has a good basic explanation of the chapter and helps form the base for further reading. Here is the link to the NCERT PDF version of the mentioned chapter:
• Flash Cards are to be created by the students so that they are able to revise the parts and their functions easily.
• All the past year questions must be solved so that one understands the type of questions that are asked in the paper.
• Revision every week should be done to keep the chapter fresh.

## Relative Motion

### Introduction:

The laws of physics which apply when we are at rest on the earth also apply when we are in any reference frame which is moving at a constant velocity with respect to the earth. The motion may have a different appearance as viewed from a different reference frame, but this can be explained by including the relative velocity of the reference frame in the description of the motion.

### Chapter Analysis:

With only three question being asked in the past 11 years, and the last three years being question free with regard to this chapter, we should not be expecting much from this low-weighted chapter. However, the concept taught in this chapter have implementations in various other chapters and hence must not be overlooked. So, we should not be expecting anything great from this chapter, at most 1 question.
The below given graph will illustrate the above-mentioned analysis:

Year 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009
Questions 0 0 0 1 1 0 0 0 1 0 0

The important topics to be covered from this chapter are:
• River-boat Problem
• Rain Man Problem
• Ship-Direction Problem

### Tips and Tricks:

• NCERT will form the base for the understanding of further queries and it provides a stern platform to further work on. Here is the NCERT PDF version of the chapter:
• There is a huge number of unique terms and keywords. Hence, they must be revised regularly. Once in a fortnight is a must.
• Practice a large number of questions from this topic and leave no stones unturned to make this chapter one of your strengths.

## Circular Motion

### Introduction:

Circular Motion is a movement of an object along the circumference of a circle or rotation along a circular path. It can be uniform, with constant angular rate of rotation and constant speed, or non-uniform with a changing rate of rotation. The rotation around a fixed axis of a three-dimensional body involves circular motion of its parts. The equations of motion describe the movement of the center of mass of a body.

### Chapter Analysis:

With only one question being asked from this chapter in the past 11 years, the chapter falls in the category of low-weighted chapter. However, the concept taught in this chapter is used extensively in the chapters like Rotation, SHM and Alternating Current and hence, this chapter must not be overlooked. However, we should not expect anything from this chapter in terms of questions in the coming paper.
The below given graph will illustrate the above-mentioned analysis:

Year 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009
Questions 0 0 0 0 0 0 0 0 1 0 0

The important topics to be covered from this chapter are:
• Dynamics of Uniform Circular Motion
• Centripetal Force

### Tips and Tricks:

1. NCERT must be read properly for this chapter as it covers most of the topics briefly. Here is the link to the NCERT PDF version of the chapter:
2. Practice a large number of questions from this topic and leave no stones unturned to make this chapter one of your strengths.
3. Online video lectures might help the student in having a clearer understanding of the topic.

## Laws of Motion and Friction

### Introduction:

Newton’s Laws of Motion are three physical laws, that, together, laid the foundation for classical mechanics. They describe the relationship between a body and the forces acting upon it, and its motion in response to those forces. More precisely, the first law defines the force qualitatively, the second law offers a quantitative measure of the force, and the third asserts that a single isolated force doesn’t exist. These three laws have been expressed in several ways, over nearly three centuries.

### Chapter Analysis:

The past 5 years have seen 2 question being asked every year while the number of questions rose to 3 in 2014, and fell down to 0 in 2012. Except for those two years, from 2011 to 2019, 2 questions were asked every year. With such stats, this chapter falls in the category of medium-weighted chapter and we should be expecting nothing more than 2 question from this chapter.
The below given graph will illustrate the above-mentioned analysis:

Year 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009
Questions 2 2 2 2 2 3 2 0 2 1 1

The important topics to cover from this chapter are:
• Newton’s Laws of Motion
• Concept of Inertia
• Pulley Problems
• Tension Equations

### Tips and Tricks:

• The students must begin with reading the NCERT portion as it has a good basic explanation of the chapter and helps form the base for further reading. Here is the link to the NCERT PDF version of the mentioned chapter:
• Flash Cards are to be created by the students so that they are able to revise the parts and their functions easily.
• All the past year questions must be solved so that one understands the type of questions that are asked in the paper.
• Revision every week should be done to keep the chapter fresh.

## Center of Mass and Momentum

### Introduction:

The center of mass of a distribution of mass in space is the unique point where the weighted relative position of the distributed mass sums to zero. This is the point to which a force may be applied to cause a linear acceleration without an angular acceleration. Calculations in mechanics are often simplified when formulated with respect to the center of mass. It is a hypothetical point where entire mass of an object may be assumed to be concentrated to visualize its motion. In other words, the center of mass is the particle equivalent of a given object for application of Newton’s Laws of Motion.

### Chapter Analysis:

The last three years had 3 question being asked from this chapter without fail. While there were no questions being asked from during the period 2012-2016, the chapter fell in the good-books of the paper setter. So this chapter falls in the category of low-weighted chapter with 6 questions being asked in the past 11 years, and we should not be expecting anything more than 1 question in the coming years.
The below given graph will illustrate the above-mentioned analysis:

Year 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009
Questions 1 1 1 0 0 0 0 1 0 1 1

### Tips and Tricks:

• NCERT will form the base for the understanding of further queries and it provides a stern platform to further work on. Here is the NCERT PDF version of the chapter:
• There are various diagrams in this chapter. Hence, they must be created in a single large sheet of paper and looked upon at regular intervals.
• There is a huge number of unique terms and keywords. Hence, they must be revised regularly. Once in a fortnight is a must.

## Work,Power and Energy

### Introduction:

Work is done when a force produces motion. And for doing work energy is required. This energy we get from the food which we eat and if work is done by machine, then energy is supplied by fuels or by electricity.

### Chapter Analysis:

One of the most important chapter from Physics, and 26 questions in the past 11 years justifies the importance. The last two years have had 2 question being asked every year while the number of questions rose to 4 in the year of 2009 and 2016. Hence, on odd occasions, this chapter turned out to be the king-maker. So, we should not be expecting anything more than 2 questions from tis chapter in the coming paper.
The below given graph will illustrate the above-mentioned analysis:

Year 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009
Questions 2 2 1 4 3 1 2 2 3 2 4

The important topics to be covered from this chapter are :
• Work done by a constant force and a variable force
• Kinetic Energy and Potential Energy
• Work-Energy Theorem
• Power
• Spring
• Concept of Conservative Forces
• Law of Conservation of Mechanical Energy
• Motion in a Vertical Circle
• Collisions

### Tips and Tricks:

• NCERT must be read properly for this chapter as it covers most of the topics briefly. Here is the link to the NCERT PDF version of the chapter:
• Practice a large number of questions from this topic and leave no stones unturned to make this chapter one of your strengths.
• Online video lectures might help the student in having a clearer understanding of the topic.

## Gravitation

### Introduction:

Gravitation is a natural phenomenon by which all things with mass or energy – including planets, stars, galaxies, and even light – are brought toward one another. On Earth, gravity gives weight to physical objects and the Moon’s gravity causes the ocean tides. The gravitational attraction of the original gaseous matter present in the Universe cause it to begin coalescing, former stars – and for the stars to group together into galaxies – so gravity is responsible for many of the large-scale structures in the Universe. Gravity has an infinite range, although its effects become increasingly weaker on farther object.

### Chapter Analysis:

One of the most interesting chapter, this chapter has had 2 question being asked every year for the past 5 years. However, 3 questions were asked in the years of 2011, 2012 and 2014. A total of 24 questions were asked in the past 11 years. This chapter falls in the category of medium weighted chapter and hence, we can expect atleast 2 question from this chapter in the coming papers,
The below given graph will illustrate the above-mentioned analysis:

Year 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009
Questions 2 2 2 2 2 3 2 3 3 2 1

The important topics to be covered from this chapter are:
• Universal Law of Gravitation
• Acceleration due to Gravity and its variation with altitude and depth
• Gravitational Potential Energy and Gravitational Potential
• Escape Velocity and Orbital Velocity of a Satellite
• Geo Stationary Satellites

### Tips and Tricks:

This chapter happens to be another important chapter with moderate number of questions being asked. Hence, it is important for the students to make this chapter one of their strengths. For this, the following tips might help:
• The students must be through with the NCERT study material as it forms the base for further understanding. Here is the link for the NCERT PDF version of the chapter:
• Again, this chapter involves large number of keywords and terms. Hence Flash Cards help.
• The past year questions must be solved a fair number of times so that one understands the type of questions asked.
• Regular revision of this chapter is of utmost importance as the vastness of the syllabus will make the mind forget the key terms easily.

## Rotation

### Introduction:

Rotation is a circular movement of an object around a center of rotation. A three-dimensional object can always be rotated around an infinite number of imaginary lines called rotation axes. If the axis passes through the body’s center of mass, the body is said to rotate upon itself, or spin. A rotation about an external point, e.g. the Earth about the Sun, is called a revolution or orbital revolution, typically, when it is produced by gravity. The axis is called a pole.

### Chapter Analysis:

This happens to be one of the toughest chapters in the entire physics syllabus. The questions asked from this chapter always are conceptual and need deep level of thinking. Not a single year has passed in the past 11 years where this chapter was skipped by the paper setters. A total of 23 questions have been asked making it a medium weighted chapter and hence, we can expect atleast 2 questions from this chapter in the coming papers.
The below given graph will illustrate the above-mentioned analysis:

Year 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009
Questions 2 2 2 3 3 2 2 2 2 1 2

### Tips and Tricks:

Since this is a high weightage chapter, one must devote adequate time to this. There must be no negligence in completing this chapter as this might be the one chapter to help you score heavily. The following tips might be helpful to the students:
• NEET Syllabus has its base in the NCERT Textbooks and this chapter is well explained in that. So, the student must be thorough with the material present in the NCERT Book. Here is the link to NCERT PDF version of the chapter:
• This chapter is filled with small details and keywords. Hence making Flash Cards will be the best way to keep them to your memory.
• The past year questions must be practiced a number of times so that they should be on your fingers.
• Practice a large number of questions from this topic and leave no stones unturned to make this chapter one of your strengths.
• Revision every week will be appreciated as the different terms and keywords are quite likely to slip out of the mind if not revised periodically.

#### Q. What is the list of Chapter Taught in Mechanics physics for NEET ?

The Important topics for Mechanics are Basic Physics, Unit and Dimension, Errors, Vectors and scalars, 1D motion, projectile motion, relative motion, circular motion, law of motion and friction, center of mass & momentum, work power energy, Gravitation

#### Q. What is the weightage of Mechanics for NEET?

Questions have been coming continuously from this with some ups and downs . With the highest no. of questions in 2017 at 16 and lowest in 2010 at 10 this unit still boasts the highest no. of questions in almost all years . Going by the trends we can expect a minimum of 13 questions this year too which could go up to 15