Weight and Mass (Leaving Cert Physics): Flashcards

Object accelerates without rotating

Point where all object's mass appears concentrated

At geometric centre

Force of Earth's gravity on an object

Newtons (N)

$9.8 \text{ m s}^{-1}$

$W = mg$

Weight changes, mass stays constant

Point where entire weight of object appears to act

Yes, same point in uniform gravitational fields

Upward force perpendicular to surface

Along rope/string/cable

Force opposing motion between surfaces in contact