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Free online course Physics 1 course

Duration of the online course: 4 hours and 10 minutes

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Build strong physics skills fast with a free online course: motion, vectors, units, conversions, and core laws—ideal for exams and study confidence.

In this free course, learn about

Core physics domains: force & motion, gravity, thermodynamics, electricity/magnetism, basic quantum
Newton’s law of universal gravitation and how gravity depends on mass and distance
First law of thermodynamics: energy conservation linking heat input, work output, and internal energy
Magnetic force on charges: stationary proton feels none; moving proton experiences force (q v × B)
Essential algebra skills: integer operations on a number line and working with negative exponents
Trigonometry fundamentals for physics: sin/cos/tan, trig identities, and vector component relations
Scientific notation: converting large numbers (e.g., 316 million) and using powers of ten
SI units & metric system basics: base units (e.g., second for time) and derived unit awareness
Unit conversion methods using correct conversion factors (e.g., ft↔in) and dimensional analysis
Distance vs displacement, average speed, and solving simple 1D motion problems
Scalars vs vectors and identifying vector quantities in physics contexts
Graphical vector operations: addition (tip-to-tail), order independence, subtraction as adding −B
Scaling vectors by scalars and computing components using trig (x/y components, magnitudes, angles)

About the free online course

Understanding physics is easier when the ideas connect and the math stops feeling like a barrier. This free online Physics 1 course is designed to help you build a solid foundation from the ground up, so you can read problems with confidence, choose the right approach, and explain results clearly. Whether you are reinforcing school learning, preparing for exams, or returning to the subject after a break, you will develop the habits and intuition that make physics feel logical rather than intimidating.

You will start with the big picture of what physics studies, then move into core concepts such as force and motion, the basic relationship between heat and work in thermodynamics, and key ideas in electricity and magnetism. Instead of treating these topics as isolated facts, the course helps you see patterns: how laws describe nature, why units matter, and how to interpret what a situation is asking before plugging in numbers.

Because success in physics depends on clear math and measurement skills, you will also strengthen the tools that support every solution. You will review essential algebra, trigonometry, and scientific notation, then apply them to physics units, the metric system, and practical unit conversions. This makes it easier to avoid common errors and to communicate answers in a form that is scientifically meaningful.

A major focus is learning to think in vectors. You will learn the difference between scalars and vectors, how to add and subtract vectors graphically, how scalar multiplication changes magnitude and direction, and how to break vectors into x and y components. These skills are fundamental for analyzing displacement, velocity, and many real-world motion problems. Practice questions throughout the course help you check understanding, correct misconceptions early, and build problem-solving speed without sacrificing accuracy.

By the end, you will be better equipped to tackle introductory physics with a structured method, stronger math fluency, and clearer physical intuition—skills that transfer directly to further science study and many technical pathways.

Course content

Video class: 01 - Introduction to Physics, Part 1 (Force, Motion 30m
Exercise: What is the name of the law that describes the force of gravity between two masses?
Video class: 02 - Introduction to Physics, Part 2 (Thermodynamics 13m
Exercise: What does the first law of thermodynamics state about the relationship between work output and heat input in a system?
Video class: 03 - Introduction to Physics, Part 3 (Electricity, Magnetism, Quantum Mechanics 14m
Exercise: Which statement correctly describes the behavior of a proton in a magnetic field if the proton is stationary versus when it is in motion?

Video class: 04 - Review Of Essential Algebra, Part 1 04m
Exercise: Which of the following operations correctly represents adding the numbers -1 and -3 using the number line method described in the lesson?
Video class: 05 - Review Of Essential Algebra, Part 2 04m
Exercise: What is the value of 10 raised to the power of negative 1?
Video class: 06 - Review of Essential Trigonometry (Sin, Cos, Tangent - Trig Identities 33m
Exercise: Which of the following is the correct expression for calculating the component of a vector along the direction perpendicular to the hypotenuse of a right-angled triangle?

Video class: 07 - Scientific Notation 02m
Exercise: Which of the following represents the number 316 million in scientific notation?
Video class: 08 - Physics Units And The Metric System 02m
Exercise: Which of the following is considered the base unit for time in the International System of Units (SI)?
Video class: 09 - Unit Conversions 04m
Exercise: In the context of unit conversions in physics, if you have a measurement in feet and you need to convert it into inches, which of the following should be the correct conversion factor?

Video class: 10 - Learn Distance and Displacement in Physics (Displacement Formula Vs. Distance Formula) 20m
Exercise: In a one-dimensional motion along a straight line, if the initial position (x_i) of an object is at -3 meters and the final position (x_f) is at 2 meters, what is the displacement of the object?
Video class: 11 - What is Definition of Average Speed 22m
Exercise: What is the average speed of an object that travels 4 meters in 1 second?

Video class: 12 - What are Vectors and Scalars? 19m
Exercise: Which of the following is an example of a vector quantity in physics?
Video class: 13 - Adding Two Vectors Graphically in Physics (Vector Sum 37m
Exercise: How do you find the resultant vector when adding two vectors graphically?
Video class: 14 - Adding 3 Or More Vectors Graphically 02m
Exercise: When graphically adding three or more vectors, what is the significance of the order in which the vectors are added?
Video class: 15 - Subtracting Vectors Graphically 01m
Exercise: In the context of vector subtraction as described in the text, how can you interpret the subtraction of a vector B from vector A, notated as A - B?
Video class: 16 - Multiplying A Vector By A Scalar 02m

Video class: 17 - Calculating Vector Components in Physics, Part 1 (Component form of a Vector) 29m
Exercise: Which of the following expressions can you use to calculate the magnitude of the x-component (Dx) of a displacement vector having a magnitude of 10 meters and making an angle of 30 degrees with the x-axis?
Video class: 18 - Calculating Vector Components, Part 2 04m
Exercise: In the context of decomposing a vector into its components, when a vector is drawn in the first quadrant of the coordinate system at a 45 degree angle to the axes and has a magnitude of 13, what are the x and y components rounded to two decimal places?
Video class: 19 - Calculating Vector Components, Part 3 02m
Exercise: A velocity vector has a magnitude of 10 meters per second and points to the right and up. The x-component of this vector is 6 meters per second. What is the y-component of the velocity vector?
Video class: 20 - Calculating Vector Components, Part 4 02m
Exercise: A vector with a magnitude of 300 meters per second is 45 degrees below the x-axis. What are the x and y components of this vector?