Mass & Inertia Flashcards

All 4 cards in this deck

What is inertial mass a measure of?

How difficult it is to change the velocity of an object, including changing it from rest.

How is inertial mass defined, as an equation?

inertial mass (kg) = force (N) ÷ acceleration (m/s²)

True or false? An object with a larger inertial mass is easier to speed up or slow down with a given force.

False. A larger inertial mass means its velocity is harder to change, so the same force gives a smaller acceleration.

What is inertia?

An object's tendency to resist any change to its motion: it stays at rest, or at a constant velocity, until a resultant force acts on it.