Ko te mau tonu o tētahi mea ki tōna āhua noho ngū, ki tōna nukunuku pūmau rānei i te rārangi torotika. Ina pā tētahi tōpana, kātahi nei pea ka nuku taua mea, ka whakatere rānei mēnā kei te rahi te tōpana hei kake ake i te tūpuku.
The reluctance of an object to change its state of rest or constant motion in a straight line. If a force is applied, the object may move or accelerate if the force is sufficient to overcome the inertia.
tū - to stand, to remain
puku - quiet, still
Pēhea nei te tātai i te tōpana hei kake ake i te tūpuku o te motukā?
Whakamāramatia ngā āhuatanga o te tūpuku o tētahi mea.
He rahi ake te tūpuku o tētahi mea taumaha, i te tūpuku o tētahi mea āhua māmā ake.