Unit 2 · 2.4 — Newton's First Law
6 learning items · ~2.19% exam weight (unit share)
Everything to learn here
- Concept: An object will maintain a constant velocity vector (or remain at rest) unless acted upon by a net external force (Law of Inertia).
- Concept: Zero acceleration implies the vector sum of all forces acting on the object is zero in all directions (net force is zero).
- Vocabulary: Inertia — The inherent property of an object to resist changes in its state of motion, quantified by its mass.
- Vocabulary: Translational Equilibrium — A state where the net force on an object is zero, resulting in zero acceleration and constant velocity.
- Skill: Experimental Design — Designing an apparatus with hanging masses and a force table to prove an object is in static equilibrium by verifying orthogonal force components sum to zero.
- Skill: Paragraph-Length Argument — Formulating a logical argument explaining why a passenger shifts forward in a suddenly braking vehicle by referencing inertia and the absence of a forward force.
Practice problems for this topic are coming — generated and validated by our AI pipeline, aligned to these exact items.