# Lessons [1–100 of 2950 lessons]

- Magnetic Flux
- Loudness
- Equilibrium of a Rigid Body under Parallel Forces
- Kinematic Graphs
- Active Transport
- Diffusion
- Finding Average Values of Physical Quantities
- Finding the Areas of Rectangles and Triangles
- Graphs of Proportional Relationships
- Angular Momentum in Terms of Moment of Inertia
- Angular Momentum in Terms of Linear Momentum
- Rearranging Formulas for Physical Quantities
- Comparing Values of Physical Quantities
- Calculations with Physical Quantities Using Scientific Notation
- Representing Large Values of Physical Quantities
- Osmosis
- Eukaryotic and Prokaryotic Cells
- Instantaneous Speed
- Telling Time in Words: Time to the Quarter Hour
- Telling Time in Words: Time to the Half Hour
- Converting Mass: Customary Units
- Converting Length: Customary Units
- Choosing Cups, Pints, Quarts, or Gallons
- Choosing Ounces, Pounds, or Tons
- Choosing Grams or Kilograms
- Ordering: Biggest and Smallest
- Ordering: Heaviest and Lightest
- Mechanical Advantage of Machines
- Moment of Inertia
- X-Rays in Medicine
- Kinetic Friction
- Sharing Equally
- Writing Multiplication Equations
- Adding Mixed Numbers with Unlike Denominators
- Adding Mixed Numbers with Like Denominators
- Dividing Whole Numbers by Proper Fractions
- Dividing Proper Fractions by Whole Numbers
- Free Fall
- The Dangers of Radiation
- Limits and Limit Notation
- Initial Value Problems
- Conservative Vector Fields
- Applications of Triple Integrals
- Planar Motion Using Parametric Equations
- Vector-Valued Functions
- Drawing Conclusions
- Light-emitting Diodes
- Semiconductors
- Telescopes
- Energy Conversions
- Cross Product in 2D
- Electron Energy Levels
- Scalar and Vector Quantities
- Elasticity of Collisions
- Free-Body Diagrams
- Identifying Shapes with Symmetry
- Comparing 3D Shapes
- Making 17, 18, and 19
- Making 14, 15, and 16
- Alternating Current
- The Period of a Pendulum
- Triangles
- Rectangles
- Mechanical Energy Conservation in Orbits
- Equilibrium of Extended Objects
- Escape Speed
- Projectile Motion
- Centripetal Force
- Gravitational Potential Energy in a Radial Field
- Remainder of an Alternating Series
- Center of Mass and Integration
- Work-Energy Theorem
- Rotational Kinematics
- Normal Reaction Force on a Sloping Surface
- The Gravitational Field Inside Planets
- Tension Forces
- Surface Gravity
- Stokes' Law
- Newton's Law of Gravitation
- Laminar and Turbulent Flow of Viscous Fluids
- Using Supernovae to Measure Distances to other Galaxies
- The Structure of the Universe
- Conservation of Energy in Moving Fluids
- Using Cepheid Variable Stars to Measure Distances to other Galaxies
- Types of Galaxies
- Counting With Repetition Where Order Does Not Matter
- The Hubble Time
- Continuity Equation for Fluids
- Triangle Midsegment Theorem
- Converting and Comparing Capacity: Liters and Milliliters
- Intersection Point of Two Straight Lines on Coordinate System
- 2D Figures Resulting from Slicing a Given 3D Shape
- Finding the Perimeter of a Composite Figure
- Converting Capacity: Customary Units
- Equations of Circles Using Tangents
- Relations between Circles
- Applications on Geometric Sequences
- Finding the Terms of a Sequence Given Its General Term
- The Set of Rational Numbers
- Set of Integer Numbers