true

Find the best tutors and institutes for Class 12 Tuition

Find Best Class 12 Tuition

No matching category found.

No matching Locality found.

Outside India?

Search for topics

# Physics

23 Jun 0 0

Chapter 1 motion

The rate of change of a position concerning specific the frame of reference. It's opposite of rest. Motion is everywhere but there's nothing about an absolute motion or an absolute rest. All motion in the universe is relative to each other it's mean no absolute value of motion.  This chapter focuses on relative motion only.

To the analysis of motion is requires a frame of reference, which may be fixed or movable best example is earth surface is a fixed frame of reference with respect terrestrial motion. Mathematically frame of text can be described as geometric coordinate systems example earth can represent on spherical coordinate systems with radius nearly 6500 km and similarly sun with 109 times larger space.

Vector is quantity having a certain direction to apply to is called the line of action. It Can be represented as bow method or blod latter's its has special properties such as a sum of the vector can be zero. Vectors must follow the triangular additional or parallelogram law. Multiplication of vector is different from ordinary scalar properties. Note that electric current and work done is scalar quantity due to its doesn't follow vectors new laws. Vector was advanced topic eighteen-century science still use today to the analysis of motion. Displacement, Velocity,  acceleration and force are considered as a vector quantity.

the proper definition of particles is a body having mass applying on the centre of gravity is the only point whereas all effects can be balanced but its dimensions are not considered in the analysis. Example consider your mobile is rest in your hand while you are moving with your surroundings arise questions are mobile is moving with respect surroundings or moving with respect to you. To answer these types questions are difficult without fixing a frame of reference because without a frame of reference we can't tell the difference between motion or rest.

Some motion can be treated as rest but its motion example at atomic level scale electrons are travelling near the speed of light and orbit around the nucleus of an atom that analysis is considered as microscopic levels whereas human senses activity considers as macroscopic levels where activity in atomic scales are highly negligible. The same problem also happens in Cosmo levels for example Consider earth as a particle moving in a circular orbit around the sun in a year. Sun is also moving an orbit to the star named sage A* in 250 million years which is centre of the galaxy. Our galaxy is moving towards a bigger galaxy as per telescopic observation in the night sky as per comparison of scale here activity on earth such as movements of people's and animals can be considered as neglected. Sence of motion requires a frame of reference.

As conclusion "nothing is absolute motion or absolute rest " all motion is relative.

Next topic is displacement and distance.

0 Dislike

## Other Lessons for You

Learning Physics for IIT JEE mains, advanced & NEET
Many of the students preparing for JEE/NEET often find physics as the most challenging subject compared to others. This is because Physics needs a slightly different way of learning, and students do not...

The resisting force- friction
https://youtu.be/XSnXG49QXO4

Ravi | 21 Jul

A Brief Review of Atomic Models
Models of atom Definition: A model is a simplified representation of anything under consideration, to see how it should look like. In a similar manner, to comprehend...

Amandeep | 22 May

Electric field
ELECTRIC FIELD : The space or region around the charge in which its effect can be felt is called electric field. Electric field is denoted by 'E'. In other words, if we...

Durga S. | 04 May

How to feel conservation of momentum practically ?
Lets say you are standing on a frictionless platform of ice. And you are holding a 10kg bag . You cannot walk on this platform as there is no frction , you will slide. Now lets say you want to move in...
A

### Looking for Class 12 Tuition ?

Find best Class 12 Tuition in your locality on UrbanPro.

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you
X

### Looking for Class 12 Tuition Classes?

Find best tutors for Class 12 Tuition Classes by posting a requirement.

• Post a learning requirement
• Get customized responses
• Compare and select the best

### Looking for Class 12 Tuition Classes?

Find best Class 12 Tuition Classes in your locality on UrbanPro

UrbanPro.com is India's largest network of most trusted tutors and institutes. Over 25 lakh students rely on UrbanPro.com, to fulfill their learning requirements across 1,000+ categories. Using UrbanPro.com, parents, and students can compare multiple Tutors and Institutes and choose the one that best suits their requirements. More than 6.5 lakh verified Tutors and Institutes are helping millions of students every day and growing their tutoring business on UrbanPro.com. Whether you are looking for a tutor to learn mathematics, a German language trainer to brush up your German language skills or an institute to upgrade your IT skills, we have got the best selection of Tutors and Training Institutes for you. Read more