We might have noticed that different objects move differently. Some objects move in a curved path, some in a straight path and a few others in a different way. According to the nature of the movement, motion is classified into three types as follows: Linear Motion Rotary Motion Oscillatory Motion Linear Motion In linear motion,… Continue reading Types Of Motion
Month: April 2022
What is Motion?
We can define motion as the change of position of an object with respect to time. A book falling off a table, water flowing from the tap, rattling windows, etc all exhibit motion. Even the air that we breathe exhibits motion! Everything in the universe moves. We live in a universe that is in continual… Continue reading What is Motion?
Introduction
When we talk about motion or rest it is with reference to some point known as the origin. So, now with respect to the change in the position we have two quantities which can be used to describe that change in position. They are distance and displacement. So now the question is, what is the… Continue reading Introduction
Frequently Asked Questions – FAQs
What is temperature? Temperature is the measure of hotness or coldness of the body. What is the SI unit of heat? Joule What is the SI unit of temperature? Kelvin What are the sources of heat? Following are the sources of heat: Sun Chemical Electrical Nuclear How is heat classified? Heat is classified into: Hot… Continue reading Frequently Asked Questions – FAQs
Difference Between Heat and Temperature
Following is the table explaining heat vs temperature: Parameter Heat Temperature Definition Heat is defined as the total energy of an object that has molecular motion inside it Temperature is defined as the measure of the thermal energy of an object SI Unit Joule Kelvin Symbol Q T
Heat Transfer Occurs By Three Mechanisms:
Conduction: It is the method in which the transfer of heat takes place between atoms and molecules in direct contact. Convection: It is the method in which the transfer of heat happens by the movement of the heated substance. Radiation: It is the method in which the transfer of heat takes place by electromagnetic waves.… Continue reading Heat Transfer Occurs By Three Mechanisms:
What is Heat?
With the increase in the temperature of a body, the vibrations of molecules or atoms increase. These vibrations are then transferred from one part of the body to another. The measure of energy with which the molecules vibrate in a system is termed as heat stored in that object. As per the definition of heat, it is… Continue reading What is Heat?
Introduction
Classification According to heat definition, it is one of the essential forms of energy for the survival of life on earth. Transfer of heat takes place from one body to another due to difference in temperature as per thermodynamics. We use heat energy for various activities like cooking, ironing, transportation, recreation, etc. This form of energy also plays… Continue reading Introduction
Applications of Friction
Friction finds application when matchsticks are ignited. Motion of pistons in a cylinder is an application of friction. It is possible to write on books and board as there is friction between pen and the board.
Types of Friction
What Causes Friction? Friction is caused due to the irregularities on the two surfaces in contact. So, when one object moves over the other, these irregularities on the surface get entangled, giving rise to friction. The more the roughness, the more irregularities and more significant will be the friction. Types of Friction There are four… Continue reading Types of Friction