Is 120 Volt Shock Dangerous? Can it kill you?

The typical household power supply in USA is 120 volts. Therefore getting shocked by such an electric voltage is possible while living in a house or office. You need to know how dangerous the 120 volt shock is. Can 120 volts kill you? This article explains the effects of 120 volts shock. Can 120 volt … Read more

Formula for friction force in Physics with examples

The acceleration of a moving object depends on the net force acting on it. Therefore, the net force is an important quantity to study the dynamics of an object. In another article, we discussed equations for different types of Forces. In this article, I’m going to explore the Force of Friction in detail – its … Read more

Transformation of Energy with Examples

We cannot get any energy directly unless it is the light energy of the Sun. Luckily, we have enough mechanisms that can transform light energy into other forms like heat, electricity, chemical energy, etc. These energies can also be transformed among themselves. In this article, I’m going to explore different types of transformation of energy … Read more

Formula of Change in Momentum and Impulse

Momentum is a physical state of an object when it is in motion. A moving car cannot be stopped immediately after applying the break. It stops after moving a little distance because of its momentum. The position and momentum of a mechanical system describe the entire dynamics of the system. Therefore, the study of momentum … Read more

Conductivity of a Semiconductor – formula

Earlier we have discussed the basic properties, examples, types and applications of semiconductor materials. We became to know that semiconductors are not excellent conductors of electricity at room temperature. That means a pure semiconductor is not suitable for conducting current and hence it cannot be used to design electronic devices. But there is a solution. … Read more

Electrostatic charge distributions – types and facts

All substances are neutral by nature. They can be charged artificially or by some natural phenomena like lightning. In previous article, we learned about electric charges and their production. We became to know that the electric charges do not have the same distribution in differently shaped bodies. Because all substances don’t have the same length, … Read more

What is a Semiconductor? Properties, examples and applications

Semiconductor Lecture – 1: The article series on Semiconductor materials start from here. In this post, I’m going to give you basic introductory concepts on Semiconductors. You can read the next articles related to this topic by clicking on the Next Article button at the end of this article. Modern Technology is based on Semiconductors. … Read more

Differences between Mass and Weight of a body

Weight and Mass are not the same physical quantity. They have different units and dimensions. However, they are related to each other. In this article, I’m going to explain how is weight different from Mass and how to get weight from the mass of an object. Differences between Mass and Weight Here are some differences … Read more

Contact forces – definition, examples & equations

Newton’s second law of motion tells that a sufficient amount of net force can move an object from one place to another. For example, If you push an object placed on the floor, it will go away. Similarly, if you pull it, it will come closer to you. In either case, you have to touch … Read more

Bending Moment – definition, equation, units & diagram

If we apply a sufficient amount of force on a free object, it will move. We already discussed this concept while explaining Newton’s second law of motion. Now if we want to rotate the free object, two parallel forces should be applied in the opposite direction on two sides of the object. This creates a … Read more