Inertia (OCR GCSE Physics A (Gateway Science Suite)): Flashcards

Objects keep doing what they're already doing - staying still or moving at constant velocity

Stays still unless pushed or pulled

Keeps moving at same speed & direction unless acted upon

How hard it is to change the way something is moving

Harder to speed up, slow down, or change direction

$m = \frac{F}{a}$

More force to change their movement

Car has bigger inertial mass, trolley has smaller

Speeds up more

Doesn't speed up as much