
Explore mechanics within physics, focusing on motion, forces, and energy. Learn kinematics as the study of motion without forces, using distance, velocity, and acceleration.
Distinguish scalars and vectors: scalars have magnitude only, vectors have magnitude and direction. Learn examples such as mass and temperature versus displacement, velocity, and momentum.
Clarify the difference between distance and displacement: distance is a scalar of how far you moved, while displacement is a vector from start to finish, in meters.
Compare speed and velocity by defining speed as a scalar 'how fast' and velocity as a vector with direction, using average and instantaneous forms and distinguishing distance from displacement.
Explore acceleration as the rate of change of velocity, emphasizing direction and vector concepts, positive and negative values, and uniform accelerated motion in two dimensions.
Explore uniform accelerated motion and its five motion variables—time, displacement, v_i, v_f, a—and use v_f = v_i + a t and Δd = v_i t + 1/2 a t^2.
Solve uniform accelerated motion problems by identifying knowns and unknowns, applying vf = vi + a t, and finding velocity, displacement, and initial velocity with units.
Free fall is the acceleration due to gravity, independent of mass; on earth air resistance can complicate it, but in a vacuum a hammer and feather fall together.
Explore free fall and one-dimensional motion, solving displacement, velocity, and time under gravity using g ≈ 9.8 m/s^2, with example problems from ice fall to up and down motion.
Master isolating variables in physics equations by rearranging terms, applying reverse pen das and the order of operations, and handling fractions, exponents, and radicals to solve for the unknown.
Explore motion graphs, focusing on displacement-time graphs where slope reveals velocity and changing slopes indicate acceleration; interpret positive versus negative velocity and initial position.
Explore velocity-time graphs, interpret the slope as acceleration, and relate the area under the curve to displacement.
Explore displacement-time, velocity-time, and acceleration-time graphs, linking slope to velocity and recognizing zero acceleration as a flat velocity-time graph, while constant acceleration appears as a line on the velocity-time graph.
Explore velocity-time graphs to calculate average velocity for intervals, instantaneous velocity, and average acceleration from slope, and determine displacement from areas under the graph, including total displacement.
Explore vectors, their magnitude and direction, and learn to add them in one and two dimensions using the tail-to-tip method, finding resultant vectors and components with sine and cosine.
Explore how to resolve vectors into components in two dimensions, compute the resultant displacement using the Pythagorean theorem, and determine direction with trigonometry and angle measures.
Solve a complex vector addition problem by summing x and y components with sigma notation to obtain final displacement, about 9.75 m at 56 degrees north of east.
Explore projectile motion as two-dimensional free fall under gravity, focusing on horizontal and angled types and parabolic path, with gravity acting only on vertical motion and air resistance considered conceptually.
The lecture solves a horizontal projectile motion problem by using a vertical fall to find time, then compute range and final vertical velocity from the horizontal speed and gravity.
Explore angled projectile motion, analyzing initial velocity components and gravity's effect on two-dimensional motion, including range and maximum height with and without air resistance.
Explore angled projectile motion by resolving an initial 10 m/s speed at 33 degrees into vx and vy, then determine maximum height, total range, and time of flight under gravity.
This AP Physics angled projectile motion example analyzes launching from a six-meter cliff at 7 m/s and 50 degrees, solving for time with a quadratic equation to predict landing distance.
This course is one of several Mousseau Physics courses designed for students in high school physics, AP Physics 1, and introductory algebra based college physics. In this course we focus on kinematics, the language of motion. Students will study position, displacement, distance, velocity, speed, acceleration, motion graphs, free fall, vectors, projectiles, and two-dimensional motion.
The videos and resources use clear lectures, demonstrations, diagrams, and worked out example problems. Students will practice translating between words, graphs, equations, and physical motion. That skill matters because kinematics is often the first major unit in physics, and it becomes the foundation for later topics such as forces, energy, momentum, circular motion, and rotation.
This course is especially useful for students who want more than formula memorization. We focus on what the variables mean, how to choose the right equation, how signs and directions work, and how to check whether an answer makes physical sense. The course does not require calculus, but calculus based students can still use it to strengthen their motion fundamentals.
By the end of the course, students should be more confident reading motion graphs, solving one-dimensional and two-dimensional motion problems, explaining projectile motion, and approaching new kinematics questions in a structured way.
Students can work straight through the course as a full unit or use individual lessons as targeted support alongside a class. The videos are built to be paused, rewound, and practiced with pencil and paper, so the course works well for homework help, test review, exam preparation, or rebuilding a topic that did not fully click the first time.