9.__________ is the tendency of an object with mass to resist a change in motion.

Inertia
Normal force
Tension
Drag
I think its C.

I don't agree.

IF its not C is it D Because drag is almost like resisting something, So D?

No. Guess again. Look up the definition of inertia.

I think its A

The correct answer is A. Inertia.

In order to determine the correct answer, it is important to understand the concept being described. Inertia is the tendency of an object with mass to resist any change in its state of motion. It's the property that enables objects to stay at rest or continue moving in a straight line at a constant speed unless acted upon by an external force.

To remember this, you can think of a situation where you are sitting in a car that suddenly accelerates or decelerates. Your body tends to resist the change in motion and moves forward or backward accordingly. This resistance to changes in motion is due to inertia.

Therefore, the correct answer to the question is A. Inertia.