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Work and kinetic energy are common calculations in physics. Review the meaning of work and kinetic energy, and practice applying important formulas to calculate each using some real-world examples.

Newton's second law describes how force acting on an object affects the object's acceleration. Explore practice examples of applying Newton's second law to balanced forces, unbalanced forces, unknown forces, mass, and acceleration.

Learn to define work and energy. Discover the work energy theorem and the work energy theorem equation. See the relationship between work and energy with examples.

What is the definition of energy? Read a simple definition of energy along with the two major types of energy. Then learn about the forms of energy definition.

Learn the definition of potential energy. Understand how potential energy is stored and affected. Explore what potential energy types are and review examples.

Physics students need to know how to calculate free fall and air resistance. Review the meaning of free fall and air resistance, and practice applying the relevant formulas for distance, velocity, and resistance.

Friction, the force resisting motion, occurs through pressure being exerted from one object to another. Explore the different factors that determine the characteristics, effects, and changes in different types of friction.

Learn about energy conversion. Understand the definition of energy conversion, explore different forms of energy conversion, and discover their examples.

In physics, the law of inertia states that every change in velocity has a cause. This is Newton's first law of motion. Review an overview of the law to understand what it says about a classical problem, and understand the idea of inertia, inertia at work, and the first law in practice.

Newton's Third Law, which relates action and reaction, can be applied to many different scenarios in physics and in real life. Look into the definition of Newton's Third Law, then explore some examples to practice applying it.

Forces, the push-pull interaction of objects, are often balanced in their size and opposed in direction--but not always! Learn examples of both balanced, and unbalanced forces, and the expected physics results from an encounter.

Learn what a non-conservative force is. Understand the differences between conservative and nonconservative forces and find non-conservative force examples.

Information is transferred from devices through waves. Explore the relationship between waves and transferring information by examining how waves and signals are used, then explore how they apply to information transfer devices.

Learn what acceleration is and understand its definition. Learn the acceleration formula and its units and see example problems solving for acceleration.

Learn about electrical safety. Explore what electricity is and why electrical safety is important. Discover best practices for using electricity safely indoors and outdoors, including what to do in an emergency.

Explore how the laws of thermodynamics function in everyday life, review the three laws of thermodynamics, and learn about energy in a closed system.