31.1. Spread of sound.
Grade:
8
Subject
Physics
Theme
Sound nowadays.
Subtheme
The spread of sound.
Solve tasks to find hidden Geo point coordinates
- Physics: Characteristics and usage of lenses
- Algebra: Square trinomial roots
- Algebra: Albraic fraction.
- Algebra: Function y=√x
- Physics: Spread of light and shades.
- Algebra: Square root properties
- Chemistry: Waters chemical properties and formation.
- Geometry: Polygon angle sum, convex or concaved quadrangle, polygon diagonale.
- Chemistry: Chemical transformation signs. Chemical transformation causes and process.
- Algebra: Linear equalities and inequalities solution.
- Geometry: Squar, properties and signs.
- Physics: Soun
- Physics: Gravitation, friction and deformation.
- Geometry: Trapeze, its elements, trapeze types, trapeze properties, isosceles trapeze signs.
- Physics: Spread of sound.
- Geometry: Trapeze, elements, trapeze types, trapeze properties, isosceles trapeze signs.
- Algebra: Irrational numbers.
- Algebra: Median
- Algebra: Incomplete quadratic equation
- Algebra: Opposite, adjacent angles, perpendiculars against a straight line.
- Chemistry: Acids, bases and salts chemical formulas and names.
- Chemistry: Air composition and usage(reactions).
- Algebra: Median
- Geometry: Right-angled triangle outlined circle lines center location.
- Physics: Heat process diagram.
- Algebra: Complete quadratic equation
- Geometry: Triangles and trapezes midline.
- Algebra: Linear equalities and inequalities solution.
- Algebra: Linear equalities and inequalities solution.
- Algebra: Quadratic equation
- Chemistry: Chemical transformation signs. Chemical transformation causes and process.
- Physics: Pressure.
- Geometry: Parallelogram, elements. Properties and signs.
- Physics: Mass and density.
- Algebra: Square root
- Algebra: Proportions, percent
- Algebra: Formula y = k/x
- Chemistry: Chemical transformation signs. Chemical transformation causes and process.
- Algebra: Fractions main property
- Chemistry: Substances multiplicity.
- Physics: Spread of light and shades.
- Physics: Interaction, strength and safety.