AP Physics 1 50% Sectional Test: Through Linear Momentum
AP Physics 1 50% sectional covering kinematics, dynamics, energy, and momentum (Units 1–4). Integrated AP-style practice with multi-step mechanics problems.
Mid-Course Readiness: Kinematics Through Momentum
The 50% sectional test covers the first four units of AP Physics 1 — Kinematics, Force and Translational Dynamics, Work/Energy/Power, and Linear Momentum. At this stage, you should be able to move fluidly between force methods and energy methods depending on what a problem requires, and to apply momentum conservation alongside earlier skills.
What This Sectional Covers
Units 1 and 2: Kinematics and Dynamics (Revisited)
Motion graphs, kinematic equations, Newton's laws, FBDs, friction, and inclines reappear in integrated problems — for example, finding the acceleration of a system using Newton's second law, then using kinematics to find the speed after a given displacement.
Unit 3: Work, Energy, and Power
- Applying the work-energy theorem to find speed changes.
- Using conservation of mechanical energy on inclines and with springs.
- Reading and constructing energy bar charts.
- Calculating power from force and velocity.
Unit 4: Linear Momentum
- Applying impulse-momentum theorem using force-time graphs.
- Solving collision and explosion problems using conservation of momentum.
- Comparing elastic and inelastic collisions in terms of kinetic energy changes.
- Reasoning about center-of-mass motion qualitatively.
Integrated AP Skills Emphasized
The 50% sectional is where integrated reasoning becomes essential. Expect questions that require you to first use energy conservation to find a velocity, then use that velocity in a momentum conservation equation for a subsequent collision. These multi-step, multi-unit problems are representative of the highest-difficulty AP Physics 1 FRQs.