Date : 12/7/2021 Monday
Chapter : Motion
Motion : Motion is the combined property of the observer and what being observed.
Distance : The longest path traversed by the object.
Displacement : The shortest path traversed by the object with specified direction.
Scalar : The physical quantity which has only magnitude.
Eg : Distance
Vector : The physical quantity which has both magnitude and direction.
Eg: Displacement
What are Fundamental quantities ?
Ans : Length , Mass , Time
What are Fundamental Units ?
Ans : CGS ( Centimeter, Gram, Seconds )
MKS ( Meter, Kilogram, Seconds )
Expand SI Unit.
Ans : System of International ( MKS Unit is taken as SI )
Write the difference between Average Speed & Velocity.
Date : 19/7/2021 Monday
Speedometer : The Instrument used to find the speed of a vehicle.
Uniform Motion : The motion of the body is said to be uniform when its velocity is constant
Or
When the body covers equal distance in equal interval of time is said to be uniform motion.
Non Uniform Motion : The motion of the body is said to be Non- uniform when its velocity is changing.
Acceleration : The rate of change of velocity of an object is called Acceleration.
Instantaneous Speed : The Speed at any instant is called Instantaneous Speed.
