Formula of Change in Momentum and Impulse

Momentum is a physical state of an object which 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. Do you know that the position and momentum of a mechanical system can describe the entire dynamics of the system? Therefore, … Read more

How to get Weight from Mass?

Weight and Mass are not the same physical quantity. They have different units and dimensions also. However, we can relate to them. 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. This article is basically for students of basic physics. … Read more

Mass is a Measure of What? Quiz question

There is a popular MCQ question on Mass. It can be seen in various exams and quizzes related to Physics. The quiz question is that the Mass is a measure of what? That means, What does the mass of a body imply? Let’s discuss the question and its answer in a proper pattern. The quiz … 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

Translational Motion – equations, definition, types, examples

A particle is said to be in motion if it changes its position with time. Now, this change in position of the particle may be happened in many ways. The particle may go straight, may move in circular path, may spin around an axis, may roll on the floor. Considering these different ways of changing … Read more

Equations for Force in Physics | definition formula unit

We have already discussed Newton’s three laws of motion in other three articles. We get the definition of force from Newton’s first law of motion and the formula or the equation of force was derived from Newton’s second law of motion. In this article, we are going to discuss the definition, formula, units, dimension, types, … Read more

Projectile Motion Equations in Physics

Equations for the linear motion and free fall are known to all. Using these equations one can find the position, velocity, acceleration and energy of a particle moving in a straight line with a constant velocity or constant acceleration. If we throw an object at an angle with respect to the ground, it will not … Read more

Work done by tension force – formula and derivation

In another article, we have discussed the tension of a string or rope. We found that tension of string is a kind of force. Again, we know that a body can move due to the application of external force. So, the work done by a body depends on the force on it. Then, it seems … Read more

How to find tension in a string? | Tension formula in physics

If you drop a ball from the roof of your house, the ball will fall under gravitational force. Now, attach the ball to an end of a string and fix the other end of the string somewhere on the roof. Then drop the ball from the roof again. This time the ball will be hanging … Read more

Derive Newton’s first law from second law – prove

We already have discussed Newton’s first law and second law in other articles. These two laws deal with the motion of any particle in classical limit. First law gives the cause of motion and second law gives the measurement of force required to apply to make a particle in motion. That means these two laws … Read more