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# Mechanics

## micrometer screw gauge measurement with least count formula

What is the micrometer screw gauge? It is an instrument used to measure diameter of thin wires, thickness of small sheets of glass,plastic etc. It can measure upto 1/10 of mm (or 0.01 mm= 0.001 cm) which is usually called the least count of screw gauge. Parts of screw gauge It consists of a U-shaped metal frame F with a ...

## Stopwatch:How to read digital and analog stopwatch?

Stopwatch in physics definition A stopwatch is used to measure the time interval of an event. Types of stopwatch Digital stopwatch Mechanical stopwatch How to read Digital stop watch? It is commonly used in laboratories,it can measure a time interval up to 0.01 second.It starts to indicate the time lapsed as the start/stop button is pressed.As soon as start/stop button ...

## Different branches of physics with definitions and topics

What is physics? The branch of science which deals with the interaction of matter and energy is called physics. The rapid progress in science during the recent years has become possible due to discoveries and inventions in the field of physics.The technologies of our modern society throughout the world are related to physics.For example a car is made on the ...

## Difference between scalar quantity and vector quantity in tabular form

What are the differences between scalars and vectors?   Scalars  vectors Physical quantities having magnitude only but no direction . Physical quantities having magnitude and direction .   These quantities are completely described by: 1:a number 2:a suitable unit These quantities are completely described by: 1:a numbers 2:by a suitable unit 3:By certain direction These quantities are added ,subtracted ,multiplied ...

## Mechanics and its different branches in physics

What is mechanics in physics? The branch of science that deals with the study of motion of body,its causes and effects. The importance of mechanics It is the oldest of the physical sciences,is the study of the motion of objects.The calculation of the path of a baseball or of a space probe sent to Mars is among its problems,as is ...

## types of vectors in physics with images

A vector is represented graphically by a directed line segment or an arrow head line segment.The length of line,according to the scale chosen ,represents the magnitude of the vector while arrow head indicates the direction.Also they follow triangle law of addition.For example force,acceleration,torque,momentum ,angular momentum etc.To represent a vector we need: A suitable scale Reference axis x,y & z axis ...

## Instantaneous velocity:Formula examples and problems

Instantaneous velocity “If a body covers small displacement in in small interval of time than its velocity will be instantaneous velocity such that Δt is equal to zero.”Where Δt is the small interval of time.Average velocity does not tell us about the motion between two points on the path.The path may be straight or curved and the motion may be steady or ...

## What is difference between angular and tangential velocity?

The difference between angular velocity and tangential velocity is that “The angular displacement covered by a body in unit time is called angular velocity and tangential velocity is the velocity, which is tangent to the circular path.” Now! We learn in detail about these quantities in an easy way.Keep reading…. Angular velocity “Time rate of change of angular displacement is known ...