Physics: Motion, Energy, and Waves
Like Duolingo, but for Physics: Motion, Energy, and Waves. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
For the part of you with thirty open tabs that never became anything.
Free forever · No credit card · iPhone & Android

Key ideas in Physics: Motion, Energy, and Waves
- Distance adds up every step taken regardless of direction
- Speed is a scalar and only measures the magnitude of motion
- Displacement only looks at the gap between the starting point and the ending point
- Distinguishing between total path length and net change in position
- Returning to the start results in zero displacement
- Directional changes do not affect the speed value
- Understanding that speed does not account for direction
- Velocity is a vector that requires both a number and a direction
- The steepness of the line represents how fast the object is moving
- Changing direction results in a change in velocity even if the speedometer stays the same
- A horizontal line means the position isn't changing over time
- The direction of the slope indicates the direction of travel
- Instantaneous speed is the specific reading at a single point in time (like a speedometer)
- Average speed is the total distance divided by the total time for the whole journey
- Differentiating between a trip average and a single moment's reading
- Interpreting motion from the slope of a position-time graph
You've tried the other tabs
Thirty open tabs. Four facts you actually kept.
You watched. You nodded. By Sunday it was gone.
One answer, then back to scrolling.
Eight weeks. You meant to finish. You didn't.
Tomo gives Physics: Motion, Energy, and Waves the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.
Here's what playing it feels like
A real question from this course. Take your best guess.
When we call speed a 'scalar,' what are we saying it measures?
Get it right to open this lesson and 98 more in the app.
Where Physics: Motion, Energy, and Waves takes you
Explore the fundamental laws that govern the universe, from the mechanics of a moving car to the behavior of light and the power of the atom.
- 1
The Science of Moving Things
- Describing Motion
- Acceleration and Changing Speed
- 2
Forces and Newton's Laws
- Inertia and the First Law
- Force, Mass, and the Second Law
- Action, Reaction, and the Third Law
- Friction and Resistance
- 3
Energy and Work
- Work and Mechanical Energy
- Kinetic and Potential Energy
- The Law of Conservation of Energy
- Power and Efficiency
- 4
Waves and Sound
- The Anatomy of a Wave
- How Sound Travels
- Pitch, Volume, and the Doppler Effect
- 5
Light and Optics
- Reflection and Mirrors
- Refraction and Lenses
- The Color of Light and the Spectrum
- 6
Electricity and Magnetism
- Static Electricity and Charge
- Current, Voltage, and Resistance
- Designing Circuits
- Electromagnetism
- 7
Heat and Matter
- Temperature and Thermal Energy
- Heat Transfer and Insulation
- Specific Heat and Phase Changes
- 8
The Atomic Frontier
- Radioactivity and Decay
- Nuclear Energy: Fission and Fusion
8 sections · 25 units · 99 levels. Built to play, not to enroll.
You pick the voice
Physics: Motion, Energy, and Waves is taught in the The Bestie style: your friend who just gets it. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.
More Science on Tomo
The Mechanics of the Cosmos
Master the mathematical laws and physical principles that govern everything from the motion of planets to the quantum behavior of starlight.
Bones, Muscles, and Movement
Go beyond naming parts to understand how the human frame generates power, maintains stability, and adapts to the physical world.
The Physics of the Void
Understand the invisible rules that govern the cosmos, from why satellites don't fall to how gravity bends the very fabric of time.
Human Anatomy and Physiology
Go beyond basic diagrams to master the complex mechanical and chemical interactions that sustain human life. This course bridges the gap between structural form and clinical function for a professional-grade understanding of the body.
Atmospheric Physics: The Secret Life of Clouds
Move beyond basic classification into the complex thermodynamics and microphysics that drive cloud formation and global climate regulation.
Stargazing and the Hidden Universe
Learn to read the night sky like a map and discover the secret messages hidden in starlight. From finding famous constellations to 'seeing' invisible radiation, you'll view the cosmos in a whole new light.
Start Physics: Motion, Energy, and Waves today.
Download Tomo, search Physics: Motion, Energy, and Waves, and play your first lesson in under a minute.