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AP Physics 1: FRQs
UNIT 1 - KINEMATICS: Motion in a Straight Line
Distance vs. Displacement: Two Hikers — Same Displacement, Different Distance.
A Robot's Round Trip — Why Displacement and Distance Give Different Answers.
Reading a Curved Position-Time Graph — Velocity at a Turning Point
The Secant-to-Tangent Method on a Curved Position-Time Graph
A Braking, Reversing Truck — Why the Sign of Acceleration Isn't "Slowing Down"
The Rocket Sled — Two-Phase Constant Acceleration and Choosing the Right Kinematic Equation
Free Fall — Two Balls, Two Heights: Does Falling Farther Always Mean Landing First?
Displacement as Area Under a Velocity-Time Graph — Two RC Cars, Constant Speed vs. Accelerating
Reference Frames and Relative Motion | Why Does Speed Depend on Who's Watching?
UNIT 1 - KINEMATICS: Vectors in Physics
Vector Subtraction and Displacement — Search-and-Rescue Base Camps on a Grid
Vector Components and the Arctangent Trap — A Drone's Two-Leg Survey Flight
UNIT 1 - KINEMATICS: Motion in Two Dimensions
Position vs. Displacement in 2D — A Curved Path and Why Distance Traveled Exceeds |Displacement|
2D Displacement Components — An AUV's Path: Are x- and y-Motion Really Independent?
Average Acceleration in Uniform Circular Motion — A Tetherball's Quarter-Revolution Δv
Projectile Motion Simulation — Launch Angle, Range, and Why 45° Wins (On Level Ground)
Horizontal Launch from a Height — The Stunt Motorcycle Jump Across an Alley
Asymmetric Projectile Motion: Drone Taking off From a Cliff
UNIT 2 - FORCE AND MOTION: Systems & Centre of Mass
Choosing a System — A Student's Push-Off From a Rolling Platform
Center of Mass of a Composite Object — The L-Shaped Cut-Out Plate
UNIT 2 - FORCE AND MOTION: Newton's Laws of Motion
Newton's First Law — Two Sliding Crates and the "More Inertia, Stops Sooner" Myth
Internal vs. External Forces — A Two-Block Train Pushed by a Fan
Newton's Second Law for Connected Systems — Two Crates, One Cable, and Why Tension Is Always Less Than the Pull
Static Friction on a Box in an Accelerating Truck — Riding vs. Slipping
Friction in a Connected System — A Block, a Pulley, and a Hanging Weight (1:47)
Inclined Planes & Connected Masses: Finding Acceleration and Tension
Apparent Weight in an Elevator — Why You Feel Heavier and Lighter
Newton's Third Law and the Coupling-Bar Force — A Tractor Towing a Heavier and Heavier Trailer
Spring force and Static Friction: Case of Curtain Rod
UNIT 2 - FORCE & MOTION: Friction, Drag Force & Uniform Circular Motion
Static vs. Kinetic Friction — Measuring μₛ and μₖ From a Sliding Tool Chest
Terminal Velocity and Drag Force — Nested Coffee Filters and v_t² vs. Mass
Vertical Circular Motion — Minimum Speed at the Top of a Stunt Loop
Banked vs. Unbanked Curves — Same Radius, Rain Removes the Friction
Conical Pendulum Period — Does It Ever Match a Simple Pendulum of the Same Length?
UNIT 2 - GRAVITATION: Gravitational Force and Potential Energy, Escape Velocity and Kepler's 3rd Law
Newton's Law of Gravitation — Three Spheres in Deep Space and the Zero-Force Point
Deriving g = GM/r² — A Survey Probe Mapping a Distant Planet's Gravity
Gravitational Potential Energy in Free Fall — A Payload Dropped From 4 Earth Radii
Angular Momentum in Orbits Simulation — Why Planets Speed Up Near the Sun
Perihelion and Aphelion — Comet Aravalli, Conservation of Angular Momentum and Energy
Angular Momentum in an Elliptical Orbit — The Vyom-1 Relay Satellite
Escape Speed and Gravitational Potential Energy — The Callisto Return Capsule
New Lesson
UNIT 2 - WORK ENERGY & POWER
Work and Kinetic Energy (ΔK = W_net)
Work done when force is at an angle to displacement
Work Done by a Collection of Forces — The Rescue Winch Lift
Asymmetric Projectile Motion: Drone Taking off From a Cliff
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