Hard SOF National Science Olympiad (NSO/ISO) · NSO Level 1 · 2019 . Sample Practice variant 4: Which force opposes relative motion between surfaces in contact? A Friction B Gravity C Buoyancy D Magnetism Submit Answer Show Explanation Mark as Completed Mark as Important Mark for Review
Which SI unit is used for electric current? SOF National Science Olympiad (NSO/ISO) . Easy · Physics · 2014 See Explanation
Practice variant 3: Which process releases energy from food in living cells? SOF National Science Olympiad (NSO/ISO) . Hard · Biology · 2024 See Explanation
Practice variant 4: Which SI unit is used for electric current? SOF National Science Olympiad (NSO/ISO) . Hard · Physics · 2016 See Explanation
Practice variant 2: Which SI unit is used for electric current? SOF National Science Olympiad (NSO/ISO) . Medium · Physics · 2025 See Explanation
Practice variant 2: Which process helps reduce soil erosion on steep slopes? SOF National Science Olympiad (NSO/ISO) . Medium · Science · 2013 See Explanation