The Complete High School and College Physics

Explore the addition and application of vectors using angle concepts, cosine law, and resultant magnitude with examples at 60° and 120°, including displacement calculations.

Learn to resolve multiple forces into vertical and horizontal components, using sine and cosine and quadrant signs, to compute the resultant force via vector components and Pythagoras.

Explore practical applications of the equations of motion by solving problems on velocity, displacement, acceleration, and resultant force using right-triangle geometry and Newton's second law.

Analyze a car's motion from rest using a velocity-time graph to compute distance traveled via the area under the curve, determine retardation, and find velocity after 20 seconds.

Explore the concept of gravity through Newton's law of universal gravitation, explain the relationship between gravity and potential, and solve problems involving electric potential.

This lecture explains escape velocity as the minimum speed to overcome gravity and uses the formula sqrt(2 GM / R) and the gravitational force F = GM1 M2 / r^2.

Explore equilibrium where a body neither rotates nor moves, and define moment as force times distance from a pivot. Learn the principle of moments: anticlockwise and clockwise moments balance.

Explore the moment of a force about a point and the concept of a couple, defined as equal opposite forces, with applications in bicycle pedals and circular rings.

Explore energy as the capacity to do work and its forms, including kinetic, potential, heat, light, sound, chemical, and nuclear, plus renewable and nonrenewable resources, and the conservation of energy.

Define machines and simple machines; learn how they do work to overcome a load with tools like levers, crowbars, and wheelbarrows, and study mechanical advantage, velocity ratio, efficiency, friction.

Explains the lever as a simple machine with a fulcrum, showing equilibrium and imbalance, and introduces the three lever classes with examples like crowbar, wheelbarrow, and human body.

Examine elasticity as a material's ability to return to its original shape after loading, and how Hooke's law links force, strain, and elasticity in springs.

Explore elasticity through practical examples connecting force, extension, stress, and strain. Solve problems on work done, stiffness constants, and elastic properties of solids.

Explore solving density and pressure problems by calculating weights in air and in liquids using relative density, plus determine volume change when ice melts using densities of ice and water.