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 ...

Read More »## 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 ...

Read More »## 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 ...

Read More »## 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 ...

Read More »## 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 ...

Read More »## 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 ...

Read More »## 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 ...

Read More »## What is the difference between average and instantaneous velocity?

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 ...

Read More »## What is difference between angular and tangential velocity?

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 is radian per second (rad s-1) . Very often we are interested in knowing how fast or how slow a body is rotating.It is determined by its angular velocity which is defined as the rate ...

Read More »## Difference between escape and orbital velocity law with examples

Relation between escape velocity and orbital velocity formula What is the 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 ...

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