Physics
10 courses·EN
Use forces, motion, waves, and energy to explain familiar physical behavior.
Choose a mechanism to study, such as an electric circuit or buoyancy. Astronomy and Earth Science apply related ideas to different scales and systems.
A route through the topic
Start with the introductory explanation below, then choose a focused lesson for the task or question you want to explore.
Courses in this topic

Introduction to Optics
An introductory course on optics exploring the properties of light and color for beginners.
16 slides·32 min

Buoyancy: Density & Displacement
This training explains the physics of floating objects, covering density, displacement, and buoyancy for students and science enthusiasts.
14 slides·28 min

Electric Circuits: Current, Voltage, Resistance
Basic introduction to electric circuits covering current, voltage, and resistance for beginners.
14 slides·28 min

Forces and Motion Physics
An introductory physics course exploring forces, motion, and their real-world applications for learners new to the subject.
18 slides·36 min

How Electricity Works: Circuits & Energy
An introduction to electrical circuits and energy flow, designed for learners seeking a foundational understanding of how electricity works.
17 slides·34 min

Magnetism: Fields, Forces, and Earth
Explore the principles of magnetism, including magnetic fields, forces, and Earth's magnetic field, in this foundational physics training.
16 slides·32 min

Simple Machines: Force & Advantage
Learn how simple machines multiply force, change distance, and provide mechanical advantage in this foundational physics training.
14 slides·28 min

The Science of Sound
A foundational course exploring the physics of sound, designed to teach learners how sound waves are produced, travel, and are perceived.
16 slides·32 min

Thermal Energy Transfer
This training explains how thermal energy moves, covering the fundamentals of heat and temperature for learners building foundational physics knowledge.
16 slides·32 min

Waves: Frequency, Wavelength, Energy
This training explains the relationship between wave frequency, wavelength, and energy for learners exploring basic physics concepts.
16 slides·32 min