Easy SOF National Science Olympiad (NSO/ISO) · NSO Level 1 · 2023 . Sample The speed of light in vacuum is approximately: A 3 x 106 m/s B 3 x 108 m/s C 3 x 1010 m/s D 3 x 1012 m/s Submit Answer Show Explanation Mark as Completed Mark as Important Mark for Review
A sound wave has a frequency of 500 Hz and a wavelength of 0.68 m. Using v = f × λ, the speed of the wave is ______. SOF National Science Olympiad (NSO/ISO) . Easy · Physics · 2026 See Explanation
Which of the following diseases is caused by a protozoan? SOF National Science Olympiad (NSO/ISO) . Easy · Biology · 2026 See Explanation
Identify the cell organelle from the clues: it is called the "powerhouse of the cell", it has a double membrane and it contains its own DNA. SOF National Science Olympiad (NSO/ISO) . Easy · Biology · 2026 See Explanation
A small compass needle is brought near the south pole of a bar magnet. The north pole of the compass needle will: SOF National Science Olympiad (NSO/ISO) . Easy · Physics · 2026 See Explanation
In pea plants, tallness (T) is dominant over dwarfness (t). Two heterozygous tall plants (Tt × Tt) are crossed. What is the probability that an offspring is dwarf? SOF National Science Olympiad (NSO/ISO) . Medium · Biology · 2026 See Explanation