• 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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530.2. Ultrasound, Infrasound and sound usage.

Write the missing!

Rabbits ear can detect sound in range of 50 to 10 000 Hz. What range does waves length changes, which is in rabbits range? Speed of sound in air is 344 m/s.
No m līdz m.
Sound nowadays.
Ultrasound, Infrasound and sound usage.

Solve tasks to find hidden Geo point coordinates

  1. Algebra: Incomplete quadratic equation
  2. Geometry: Tangent properties and signs.
  3. Geometry: Triangle indrawn in circumference, location of encircled circumference centre.
  4. Geometry: Diamond, it`s properties and signs.
  5. Physics: Heat and temperature.
  6. Chemistry: Substances physical properties and transformations.
  7. Algebra: Square root
  8. Algebra: Quadratic equation discriminant
  9. Algebra: Irrational numbers.
  10. Algebra: Periodical decimal fractions.