Why do circuit breakers go up for on and down for off?

If you live on Gilligan's Island, you can cover the entire island with a single transmitter and a few watts of power.

Clearly not.

Friction isn't just related to surface area, but also material.

Friction just isn't related to surface area, but instead material.

Momentum not Inertia.

Same thing

As TNP has said they are virtually the same, one is vector and one is a scalar, much like velocity and speed.

Inertia controls the rate of acceleration of a mass due to gravity, that's why everything falls at the same rate in a vacuum.

A massy object has inertia whether it's moving or not. It only has momentum if it's moving.

Sorry, but gravity really has nothing to do with inertia.

or:

Momentums is the technical scientific term for the common or garden term 'inertia' - the natural tendency for stuff to keep moving at a constant speed and resits changes to it. Has has been pointed out already momentum is technically a vector. But people don't think vector, much, when they use the word 'inertia'.

For me, momentum is the technical refined description of what ordinary people call 'inertia'

Moving relative to what?

There's a description of the difference here:

With respect that is mostly bollocks. And doesn't take into account the inertia of bureaucracy or the inertia of a projectile hitting a tank.

Inertia is a common usage term. Momentums is technical. And as I pointed out, all motion is relative, so your appeal to authority fails because there is no such thing as 'an object at rest' or 'in constant motion' unless you define a frame of interital. reference.

It makes sense to me, perhaps you could give a link to something similar from a respected body?

Time

You are correct that all motion has to be relative to something. In this case, the object's motion is relative to the observer. The momentum of an object is its mass times its velocity. Inertia is the property of matter that resists changes in motion. It is proportional to mass and independent of velocity. So, a massy object has inertia whether it's moving or not. It only has momentum if it's moving relative to an observer ¹².

I hope that helps! Let me know if you have any other questions.

Source: Conversation with Bing, 22/06/2023 (1) Difference Between Momentum and Inertia - Collegedunia.

Inertia has units of mass. Momentum is mass times velocity.

Mass does not have a vector.

I'm sure glad that you don't design electronics.