motion principle
nounUK /ˈməʊ.ʃən ˈprɪn.sə.pəl/
US /ˈmoʊ.ʃən ˈprɪn.sə.pəl/
A motion principle is a basic rule that explains how things move.
The teacher explained the motion principle behind why a ball rolls downhill.
OTHER MEANINGS
2. A guiding rule used in animation to make movement look natural and believable.
The animator applied the motion principle of squash and stretch to the bouncing ball.
3. A fundamental rule in physics describing how objects change position over time.
Newton's first motion principle states that an object stays at rest unless a force acts on it.
4. A design guideline for creating smooth, realistic movement in games or robots.
The engineer tuned the robot's motion principle so its arm moved without jerking.