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Difference between Momentum and Impulse

Difference between Momentum and Impulse

In everyday conversation, people use the terms “momentum” and “impulse” interchangeably. However, there is a big difference between these two concepts in physics. This blog post will define each term and discuss the similarities and differences between momentum and impulse.

What is Momentum?

Momentum is a quantity that measures the “oomph” or combined motion of an object. Momentum will stay the same as long as there are no outside forces acting on the object.

  • If two cars collide and Momentum is conserved, we can say that the size of the force on each car must have been equal but in opposite trips. Momentum = m*v. Momentum Depends on mass(m) and velocity(v). For instance, A car moving very slowly has less Momentum than a car moving very quickly even though both have the same Mass. The larger Momentum is, the harder it is to change.
  • You can see examples of Momentum every day. It can be used for good like when you need to stop a car quickly by slamming on the breaks or for bad like when two cars collide.
  • The bigger object’s Momentum is, the more it dominates in a collision. When two equal objects collide, they stop moving because their Momentums are equal but going in opposite directions so they cancel each other out.

You could also transfer Momentum from one object to another through contact like when you throw a ball and it hits a person or a wall and stops. All of these examples show how important Momentum can be in our lives whether we realize it or not.

What is Impulse?

Impulse is defined as a sudden force or burst of energy. It can often be thought of as a “push” or “shove.” Impulse is measured in units of Newton-seconds (N*s). It is a vector quantity, meaning it has both magnitude and direction. Impulse is created when an object collides with another object, or when an object experiences a change in velocity.

Impulse can also be created by an exploding bomb or a bursting tire. In each of these cases, the impulse is equal to the change in momentum of the object. Impulse is an important concept in physics because it can be used to calculate the amount of force required to change the motion of an object. Impulse is also used to determine the amount of damage done in a collision.

Difference between Momentum and Impulse

Momentum and impulse are two concepts in physics that are often confused.

  • Momentum is a measure of an object’s mass and velocity, while the impulse is the change in momentum over time. In other words, momentum is the object’s tendency to keep moving, while the impulse is the force that causes the change in momentum.
  • To better understand the difference between these two terms, let’s consider an example. A car moving at a constant velocity has a certain amount of momentum.
  • If the car suddenly accelerates, its momentum will increase. The force that causes this acceleration is known as an impulse.

So, to sum up, momentum is a measure of an object’s mass and velocity, while the impulse is the force that causes a change in momentum.


In the world of physics, there is a distinction between impulse and momentum. Impulse is the force applied over time, while momentum is mass multiplied by velocity. When it comes to online sales, understanding how these two forces work can help you increase your product’s sales. We’ve looked at both impulse and momentum in this post and shared some ways you can use them to your advantage when selling products online.

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