Mechanics, energy, waves, and electricity — the physics units colleges expect on a transcript, taught without needing a classroom lab bench.
Start Free →Physics has a reputation as the hardest science a homeschool family will teach, and for most parents that reputation is really about two things: the math, and the lab equipment they assume they need but don't have. Neither one has to be a wall. The math in a standard high school physics course is algebra and basic trigonometry applied to real situations — a ball rolling down a ramp, a car braking before a stop sign, a spring stretching under a weight — not calculus, and not anything beyond what a student who's finished Algebra 2 can handle with guided practice. The lab equipment question turns out to matter less than it seems, because most of what a high school physics course actually tests is conceptual reasoning and problem-solving, which a worked-example format handles well without a physical setup.
A standard homeschool high school physics course runs through five main units over a school year. It opens with kinematics and forces — how objects move, and what causes that motion to change, built around free-body diagrams and Newton's three laws. From there it moves into work, energy, and power, where students learn to track energy as it converts between forms rather than solving every problem from forces alone. A momentum and collisions unit follows, giving students a second problem-solving lens for situations where forces are hard to measure directly. The course then shifts into waves and sound, covering wave properties, interference, and resonance, before closing with an introduction to electricity and circuits — current, voltage, resistance, and how to read a simple circuit diagram. That's the same scope a student would see in a typical public or private high school physics course, which matters if the course is going to show up on a transcript labeled simply "Physics."
Colleges and many state homeschool guidelines expect a lab science to include some hands-on or applied component, and physics is usually counted as a lab science on a transcript. In practice, that requirement is easier to satisfy than families expect. A handful of simple, low-cost setups — rolling a ball down an adjustable ramp to test kinematics predictions, using a spring scale to measure force, building a basic series-and-parallel circuit with a battery pack and LEDs — cover the hands-on component for most of a standard course's units. The rest of what a school lab would add is really guided data analysis and problem application, which a structured curriculum can walk a student through directly, without requiring specialized glassware or safety equipment the way a chemistry lab does.
Most students take physics in 11th grade, after finishing Algebra 2, since the course assumes comfort with algebraic manipulation and basic trigonometry but doesn't require calculus the way a college-level physics course would. A strong math student can move physics up to 10th grade if Algebra 2 was finished early; a student who needs more time to solidify algebra can push physics to 12th grade instead, ideally pairing it with a lighter course load that year so the math and the physics content don't compete for attention at the same time. Sequencing it after Algebra 2 rather than alongside it tends to produce a smoother experience than trying to learn new algebra techniques and apply them to physics problems in the same semester.
For a student aiming at engineering, computer science, or any physical science major, a completed high school physics course is close to a baseline expectation on a transcript, not an optional add-on. Admissions readers looking at a STEM-track homeschool applicant specifically check for a physical science course beyond biology and chemistry, since it signals exposure to quantitative reasoning under real constraints — free-body diagrams, unit conversions, multi-step problem chains — that biology and chemistry don't emphasize the same way. Listing "Physics" with a clear unit breakdown (mechanics, energy, waves, electricity) in a course description gives that expectation something concrete to point to.
Physics leans more heavily on math than chemistry or biology do, since most physics problems are algebra applied to a real situation. That math dependency is usually the bigger obstacle, not the physics concepts themselves — a student solid on Algebra 2 generally has what physics needs.
A standard course covers kinematics and forces, work and energy, momentum, waves and sound, and an introduction to electricity and circuits — matching the scope taught in most traditional high schools.
Most core physics ideas can be taught through worked problems and guided reasoning without a physical lab. A few simple at-home demonstrations cover most of what a full lab bench would add.
Most commonly 11th grade, after Algebra 2. A strong math student can move it to 10th grade; a student needing more algebra time can push it to 12th grade instead.
Guided mechanics, energy, waves, and electricity units inside Lumi High, sequenced against your student's math level. Free 72-hour trial, no card needed.
Get Started →