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Mechanics

uses and function of stopwatch in physics laboratory

Stopwatch in physics definition A stopwatch is used to measure the time interval of an event. Types of stopwatch Digital stopwatch Mechanical stopwatch 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 is pressed again,it ...

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Significant figures and scientific notation with Rules and examples

 Scientific notation definition In scientific notation a number is expressed as some power of ten multiplied by a number between 1 and 10. A simple and scientific method to write small or large numbers is to express them in some power of 10.The distance of moon from Earth is 384000000 meters.This is large number,it can also be expressed as 3.84×10 8 m.This ...

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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 first 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 first 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 laws of motion examples and applications in daily life

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 and vector quantity in tabular form

 What are the differences between scalars and vectors?   Scalars  vectors Physical quantities having magnitude only but no direction are called scalar quantities. Physical quantities having magnitude and direction are called vector  quantities.   Scalar quantities are completely described by: 1:a number 2:a suitable unit vector quantities are completely described by: 1:a numbers 2:by a suitable unit 3:By certain direction ...

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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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Different 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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Atmospheric pressure at sea level:Definition,formula & applications

Atmospheric Pressure The Earth is surrounded by a cover of air called atmosphere. It extends to a few hundred kilometers above sea level. Just as certain sea creatures live at the bottom of ocean, we live at the bottom of a huge ocean of air. Air is a mixture of gases. The density of air in the atmosphere is not ...

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

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 called Pascal’s law which ...

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