SSC CGL Physics Notes: Part 1 – Motion

Questions on General Science form the bulk of the General Awareness Questions asked in SSC CGL Tier 1 Exam. 9 to 10 Questions out of the total 25 questions on General Awareness are asked on topics from General Science. Therefore, to assist you with your SSC CGL preparation, we would be providing you with notes on various topics from Physics, Chemistry and Biology. Our Today’s blog is SSC CGL Physics Notes: Part 1 – Motion. Read on to know about Speed, Velocity, Acceleration and more.

new SSC-plans

SSC CGL Physics Notes – Motion

SSC CGL Physics Notes – Scalar Quantities: 

Physical quantities which have only magnitude and no direction are called scalar quantities.
Example: Mass, speed, volume, work, time, power, energy etc.

SSC CGL Physics Notes – Vector Quantities:

Physical quantities which have both magnitude and direction, and which obey the triangle law are called vector quantities.
Example: Displacement, velocity, acceleration, force, momentum, torque etc.

SSC CGL Physics Notes – Distance

  • It is the actual path travelled by a body, irrespective of its direction in a given period of time.
  • It is a Scalar Quantity.

How well is your Physics for SSC CGL Tier 1 Exam Take a mock test now to Check

SSC CGL Physics Notes – Displacement

  • The change in the position of the object in a given period of time.
  • Distance is a scalar quantity whereas displacement is a vector quantity both having the same unit (metre).
  • Displacement may be positive, negative or zero whereas distance is always positive.

 

SSC CGL Physics Notes – Speed:

  • Distance travelled by the moving object in unit time interval is called speed.
  • Speed = Distance/ Time
  • It is a scalar quantity and its SI unit is meter/second (m/s).
  • The speed of an object at any instant is called instantaneous speed.

Variable Speed

  • A body covering unequal distance in equal interval of time will have Variable Speed.
  • Acceleration will always be present with the body moving at a Variable Speed

Uniform Speed

  • A body covering equal distance in equal interval of time will have Uniform Speed
  • Acceleration may or may not be present with Uniform speed.

SSC CGL Tier 1 Exam – Take a mock test now to Check

SSC CGL Physics Notes – Velocity:

  • The velocity of a moving object is defined as the displacement of the object in unit time interval i.e., velocity = Displacement/Time
  • It is a vector quantity and its SI unit is meter/second.

Uniform Velocity

  • If a body goes equal displacement in equal interval of time, then it is called uniform velocity

Variable Velocity

  • If a body undergoes unequal displacement in equal interval of time, then it is called variable velocity.

Relative velocity
= V1 +V2 if two travels are in opposite direction
=V1-V2 if two travels are in the same direction

SSC CGL – General Science Questions asked in 2016 and 2017 Tier 1 Exam

SSC CGL Physics Notes – Acceleration:

  • Acceleration of an object is defined as the rate of change of velocity of the object.
  • It is a vector quantity and its SI unit is meter/second2 (m/s2)
  • If velocity decreases with time which is negative acceleration, then it is called retardation.

Variable Acceleration

  • If Velocity of body changes in different amounts during the same intervals of time, the acceleration of the body is called as Variable Acceleration
  • Acceleration is variable if either of its direction or magnitude changes with respect to time.

Uniform Acceleration

  • If the velocity of the body changes by the same amounts in same intervals of time, then the acceleration of the body is known as Uniform Acceleration.

Constant Acceleration

  • If the Acceleration of the Body does not change with time, then it is called Constant Acceleration.

Acceleration Equations –

         V=u+at

        S=ut+at2/2

        V2= u2+2as

Here,

V = final velocity

u = initial velocity

t = time interval

a = acceleration

s = distance travelled.

SSC CGL Tier 1 Exam – What would be your score if Exam was Today, Check now

SSC CGL Physics Notes – Circular Motion:

  • The motion of an object along a circular path it is called circular motion.
  • If the object moves at uniform speed, its motion is uniform circular motion.
  • Uniform circular motion is an accelerated motion because the direction of the velocity changes continuously.

SSC CGL Physics Notes – Angular Displacement and Velocity:

  • The angle subtended at the centre of a circle by a body moving along the circumference of the circle is called angular displacement of the body.
  • Its unit is radian.
  • Angular displacement= length of arc/radius of circle
  • The time rate of change of angular displacement is called angular velocity.
    It is generally denoted by ω. 

That was all in This part of SSC CGL Physics notes. We hope you study the information provided here carefully and use it to score well in your SSC CGL 2018 Exam. 

If any have any further queries or suggestions regarding SSC CGL Exam – 2018 you can connect with us on FBTwitterInstagram and YouTube as well.

All the best for SSC CGL Exam 2018

Related – SSC CGL 2018 Study Material blogs – :

SSC CGL 2018 Study Material – A to Z of Reading Comprehension

SSC CGL 2018 Study Material: Quantitative Aptitude – Time, Speed and Distance Problems

SSC CGL 2018 Study Material: List of All National Parks in India

SSC CGL 2018 Study Material: Important People in India

SSC CGL 2018 Study Material – List of Important Battles/Wars of Medieval and British India

SSC CGL 2018 Study Material: Chief Justice of India – Appointment Procedure and List of all CJI

SSC CGL 2018 Study Material: Free GK Ebook – List of CMs, Governors and CJIs

Other Blogs – :

SSC Tier 2 English

SSC CGL Exam – 5 tips you must follow to achieve success

SSC CGL Tier 1 Exam – Section Wise Order of Attempt

Interact with your fellow aspirants about SSC CGL Exam and SSC CGL Study Material in our discussion forumSSC CGL Physics Notes SSC CGL Physics Notes SSC CGL Physics Notes SSC CGL Physics Notes


Leave a comment