Understanding Inertia

The inertia of an object is the object's resistance to change its motion or it's state of rest.

An inertia balance is used to determine the mass of an object and it is not affected by the gravitational force.

An object with higher mass has higher inertia.

For example between a BUS and a Motorcycle that moves at the same speed. It is easier to stop the motor because it has lower mass than the bus.

So Remember: Inertia is always connected with mass.