• The learning process is entertaining and exciting
  • The solved tasks turn into coordinates
  • The chance to follow your progress
  • Along with your schoolmates and friends, go on an adventure, searching for hideouts
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41.2. Ultrasound, Infrasound and sound usage.

Check the correct answer!

Ventilators sound frequency is 15 Hz. What types of sound it this?
Sound nowadays.
Ultrasound, Infrasound and sound usage.

Solve tasks to find hidden Geo point coordinates

  1. Algebra: Median
  2. Algebra: Numerical approximation.
  3. Algebra: Equation with unknown denominator.
  4. Physics: Gravitation, friction and deformation.
  5. Algebra: Rational fraction expression.
  6. Physics: Measurement.
  7. Geometry: Area of parallelogram, rhombus, triangle, right-angled triangle, trapeze.
  8. Geometry: Area of parallelogram, rhomb, triangle, right angled triangle and trapeze.
  9. Algebra: Square trinomial roots
  10. Algebra: Relative frequency
  11. Algebra: Fractions main property
  12. Geometry: Right-angled triangle outlined circle lines center location.
  13. Algebra: Formula y = k/x
  14. Geometry: The Pythagorean Theorem. The practical application of Pythagorean Theorem in everyday life.
  15. Geometry: Distance between parallel straight lines.
  16. Algebra: Absolute and relative mistake of approximation
  17. Geometry: Triangle median properties.
  18. Algebra: Numerical approximation.
  19. Algebra: Albraic fraction.
  20. Chemistry: Gas volume calculations
  21. Physics: Light reflection and mirrors.
  22. Chemistry: Substances physical properties and transformations.
  23. Algebra: Square root extraction
  24. Geometry: Curve angle value, center angle and indrawn angle.
  25. Physics: Archimedes law.
  26. Algebra: Moda
  27. Algebra: Fraction addition and subtraction.
  28. Chemistry: Atoms un ķīmiskie elementi.
  29. Chemistry: Periodic table of chemical elements and atomic structure.
  30. Geometry: Rectangular (S = ab, a, b - edges) and area of the square (S=a^2 , a - edge) formula.
  31. Algebra: Actual numbers.
  32. Geometry: Diameter, which is perpendicular to chord, properties.
  33. Algebra: Parabola.
  34. Physics: mass
  35. Algebra: Fraction amplification and abbreviation.
  36. Chemistry: Air composition and usage(reactions).
  37. Physics: Spread of sound.
  38. Geometry: Squar, properties and signs.
  39. Algebra: Square trinomial distribution into multipliers
  40. Geometry: Rectangle (S = ab, a, b - edges) and area of the square (S=a^2 , a - edge) formulas
  41. Geometry: Rectangular (S = ab, a, b - edges) and area of the square (S=a^2 , a - edge) formula.
  42. Physics: Ultrasound, Infrasound and sound usage.