Inertia Flashcards

All 5 cards in this deck

What is inertia?

The tendency of objects to continue in their state of rest or of uniform motion.

What is inertial mass a measure of?

How difficult it is to change the velocity of an object.

How is inertial mass defined as a ratio?

Inertial mass = force ÷ acceleration, $m = \dfrac{F}{a}$.

True or false? Inertia is a force that acts on a moving object.

False. Inertia is a property (tendency) of the object, not a force.

True or false? An object with a larger inertial mass needs a larger force to give it the same acceleration.

True. Inertial mass is the ratio of force to acceleration, so a larger mass needs a larger force for the same acceleration.