# What relationship does mass have with inertia?

The mass of an object corresponds to it's inertia.

The greater an objects mass the greater it's inertia.

### What is the relationship between mass and inertia of an object?

The inertia of a body can be defined as the relunctance of a body to acceleration. The mass of a body can be defined as a measure of the inertia of a body. This is because acceleration = resultant force / mass. So, if mass is greater, the less will be the acceleration of the body and hence the greater the inertia.

### What is the relationship between interia and mass in 7th grade level?

Inertia is the resistance to a change in motion. Most likely you've felt this in a car when it speeds up quickly and it feels like you're sinking into the seat back. Or, when the car brakes hard and your body moves forward. The relationship between inertia and mass is that the greater the mass, the greater the inertia.

### Why is mass used to represent inertia?

Because after much investigation, experiment, and experience, in laboratories of Physics all over the world, it has been determined that there is more inertia where there is more mass, and less inertia where there is less mass. Moreover, through careful measurement, it has been possible to quantify the relationship, and to demonstrate, analytically and conclusively, that intertia is precisely and directly proportional to mass, and that where there is no mass, inertia is zero. Be…