
Define forces as pushes or pulls and illustrate them with free body diagrams, including weight, friction, normal force, applied force, and tension; introduce net force and upcoming Newton's laws.
Newton's first law, inertia, states that objects at rest stay at rest and objects in motion stay in motion in a straight path unless acted on by an unbalanced force.
Learn how Newton's second law F = ma links net force, mass, and acceleration, using free body diagrams and concepts like weight, normal force, and constant velocity.
Explore Newton's third law, identifying action-reaction force pairs that are equal and opposite but act on different objects, and distinguish these from equilibrium where net force is zero.
Explore Newton's laws with free body diagrams, weight, normal force, and friction to quantify net force and acceleration in two dimensions.
Explore elevator dynamics, distinguishing weight from the normal force as up or down accelerations change apparent weight and relate weightless states to freefall and constant velocity.
AP Physics 1 Content - Not in Regents Curriculum!
AP Physics 1 Content - Not in Regents Curriculum!
Learn how friction opposes motion, how static friction can exceed kinetic friction, and how surface texture, normal force, and the coefficient of friction determine motion and equilibrium.
The demonstration shows how friction scales with normal force and surface type, revealing static and kinetic friction, including maximum static friction, and the coefficient of friction.
Explore friction dynamics through high school and regents-style problems, deriving static and kinetic friction from the normal force, and applying Newton's second law to find acceleration and displacement.
AP Physics 1 Content - Not in Regents Curriculum!
Explore inclined planes by analyzing weight, normal force, and friction, and learn how gravity’s components parallel and perpendicular to the plane determine equilibrium or motion, with static and kinetic friction.
Analyze free body diagrams for inclined planes, focusing on equilibrium, friction directions, gravity components parallel and perpendicular, and examples like constant velocity motion and tensioned ropes.
AP Physics 1 Content - Not in Regents Curriculum!
AP Physics 1 Content - Not in Regents Curriculum!
AP Physics 1 Content - Not in Regents Curriculum!
AP Physics 1 Content - Not in Regents Curriculum!
AP Physics 1 Content - Not in Regents Curriculum!
Explore centripetal motion and the center-seeking force that keeps objects in circular paths. Learn how velocity is tangent, acceleration follows v^2/r, and the centripetal force equals m v^2/r.
In centripetal motion, the apparent centrifugal force is not real; the inward centripetal force arises from friction or an applied force, with normal force, gravity, and inertia shaping circular paths.
Explore centripetal motion with high school problems. Compute centripetal acceleration v^2/r, tension forces, and maximum speed before the string breaks using mass, radius, and velocity examples.
AP Physics 1 Content - Not in Regents Curriculum!
Define frequency as revolutions per second and period as the time for one revolution, with hertz and seconds as units. Learn their inverse relationship and apply to circular motion examples.
Explore Newton's universal gravitation, including the inverse-square law F = GM1M2/r^2 and the role of distance and mass. Learn how g and gravitational fields relate to weight on Earth.
Practice universal gravitation by calculating the Earth–Moon force with F = G M1 M2 / r^2, using Earth and Moon masses and the mean distance, then explore surface gravity.
Explore how universal gravitation between two objects scales with mass and distance, using F ∝ M and F ∝ 1/r^2, including doubling masses and distance scenarios.
AP Physics 1 Content - Not in Regents Curriculum!
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 dynamics, the study of why objects move the way they do. Students will study force, mass, acceleration, Newton's laws, free body diagrams, normal force, friction, tension, weight, inclined planes, connected objects, and circular motion.
The videos and resources use clear lectures, demonstrations, diagrams, and worked out example problems. Students will practice drawing useful free body diagrams, choosing coordinate systems, writing net force equations, and connecting the physical situation to the math. Those habits are the difference between guessing at dynamics problems and solving them with a repeatable process.
This course is a strong fit for students preparing for high school physics tests, AP Physics 1, or introductory college physics. It does not require calculus. The explanations focus on algebra based reasoning, conceptual understanding, and practical problem solving. Students who struggle with force problems often discover that the issue is not the math itself, but the setup.
By the end of the course, students should be more confident identifying forces, explaining Newton's laws, solving multi-force problems, and using dynamics as a foundation for later mechanics topics such as energy, momentum, torque, and rotational motion.
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.