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Learn AP Physics From Scratch

15+ Free AP Physics 1 articles, written by Jason, teacher of 30,000+ students. Free videos, worked examples, and practice problems.

For our high achievers, we created a separate Learn Physics From Scratch Course. It includes 75+ hours of video lessons, auto-graded practice sets, and full AP unit exams, all on a beautifully designed learning platform. Learn all of physics in 100 days or less, guaranteed. Explore the course →

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  • Practice Problems
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Unit 1 | Kinematics

⏱️ 8 hrs
Unit 1.1 | Understanding vectors and the standard units used in Physics
  • 10
  • 2
  • 2
Unit 1.2 | Variables in Kinematics: Displacement, Velocity, and Acceleration
  • 25
  • 1
  • 4
Unit 1.3 | Kinematic graphs made simple
  • 16
  • 1
  • 3
Unit 1.4 | Applying Kinematic Equations in 1 Dimension Easily
  • 17
  • 1
  • 4
Unit 1.5 | Solving Projectile Motion (Motion in 2 Dimensions)
  • 10
  • 2
  • 2

Unit 2 | Dynamics

⏱️ 10 hrs
Unit 2.1 | Understanding and Applying Newton’s Law in Depth
  • 13
  • 1
  • 1
Illustration of Sir Isaac Newton sitting under a tree, observing an apple falling, with arrows indicating forces and labeled equations nearby
Unit 2.2 | Common Linear Forces in Physics
  • 5
  • 1
  • 4
Vector graphic of a car in motion with force arrows showing direction and magnitude, accompanied by equations representing Newton's three laws
Unit 2.3 | Drawing FBD (Force Diagrams) Quickly and Accurately
  • 10
  • 1
  • 1
Photo of a hand pushing a wooden block on a table, with mathematical equations representing linear force dynamics appearing around the block
Unit 2.4 | Easily Solve Any Linear Force Problems and Deriving Equation
  • 20
  • 2
  • 4
Illustration of a person standing inside an elevator with a weighing scale beneath their feet, showcasing the difference between real weight and apparent weight.
Unit 2.5 | Advanced Problem Solving – Tension and Elevators
  • 15
  • 1
  • 2
Illustration of a slope with a ball rolling down, annotated with force vectors, friction coefficients, and linear force equations (1)
Unit 2.6 | Advanced Problem Solving – Objects on Incline Planes
  • 9
  • 4
  • 1
Photo of a basic Atwood machine setup in a classroom environment, with two equal weights suspended by a rope over a pulley
Unit 2.7 | Problem Solving – Simple Pulley Systems
  • 10
  • 1
  • 3

Unit 2.1 | Circular Motion

⏱️ 3 hrs

*Circular motion is now combined with Unit 2 as of 2025 revised AP Physics curriculum

circular motion, roller coaster example depiction
Unit 3.1 | Understanding Circular Motion and Centripetal Forces
  • 6
  • 0
  • 4
car drifiting around circular track; circular motion; solving circular motion problems
Unit 3.2 | Solving Circular Motion Problems using FBDs
  • 10
  • 1
  • 4
Unit 3.3 | The Gravitational Force
  • 5
  • 1
  • 3
Circular Motion and Gravitation
Unit 3.4 | Combining circular motion and gravitation (satellites, orbits, & more)
  • 8
  • 2
  • 3
Unit 3 | Energy
⏱️ 5 hrs
Unit 4 | Momentum
⏱️ 5 hrs
Unit 5 | Rotational Kinematics and Forces (Torque)​
⏱️ 15 hrs
Unit 6 | Energy and Momentum Of Rotating Systems
⏱️ 6 hrs
Unit 7 | Oscillations
⏱️ 4 hrs
Unit 8 | Fluids
⏱️ 6 hrs

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