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Mechanics

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 ...

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Newton’s 1st law of motion examples and law of inertia

Newton’s 1st law of motion definition Newton’s first law of motion states that ” A body continues its state of rest or of uniform motion in a straight line provided no net force acts on it.” According to newton’s 1st law of motion ,a body at rest remains at rest provided no net force acts on it.This part of law ...

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Newton’s three laws of motion with examples and applications

What are the three laws of motion? Newton’s first law of motion Newton’s second law of motion Newton’s third law of motion Different types of motion in physics with examples History For centuries the problem of motion and its causes was a central theme of natural philosophy,an early name for what we call physics.It was  not until the time of ...

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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 ...

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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 ...

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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 ...

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Pascal’s principle (law): formula,applications & examples in real life

Archimedes principle Pascal law What is Pascal’s Law and how do we use it? An external force applied on the surface of a liquid increases the liquid pressure at the surface of the liquid. This increase in liquid pressure in transmitted equally in all directions and to the walls of the container in which it is filled. This result is ...

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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 ...

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What is difference between angular and tangential velocity?

The angular displacement covered by a body in unit time 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 as angular velocity.”It is denoted by ω,its formula is given by: Unit of angular velocity ...

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Relation between escape velocity and orbital velocity formula

What is  Escape velocity? “The velocity required by a body to escape from the earth’s gravitational field.”It is our daily life experience that an object projected upward comes back to the ground after rising to a certain height. This is due to the force of gravity acting downward. With increased initial velocity, the object rises to the greater height before ...

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