Exam (elaborations)
Science - World Scholars Cup questions with correct answers 2024/2025
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Science - World Scholars Cup questions with correct answers 2024/2025
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Science - World Scholars CupBatteries - ANSCathode, Electrolyte, Anode (Top to bottom). Creates power thru attraction of
charges
Discharge - ANSConverts chemical energy to electric electricity
Wireless Charging - ANSUses electromagnetic subject that sends electrodes to the battery.
Done thru two induction coils, one on each tool. Electrodes journey from one coil to another
Exploding Batteries - ANSExplodes because of overheating a small filament. Most likely are
Lithium batteries
Silicon Anode - ANSCan keep 20x greater charge than everyday batteries
Lithium Metal - ANSCan charge extra however can explode
Bacteria Battery - ANSUses EXO electrogens (Bacteria) to get energy. Harness the energy via
paper. Energy from cellular respiration.
Direct Current - ANSCurrent flows none stop left to proper
Alternate Current - ANSCurrent flows ahead then stops a touch repeated. Better for lengthy
distance
British Plugs - ANSDue to low copper from ww2 changed plugs to apply much less copper
Air Conditioning - ANSUses liquid to calm down air this is then sent out afterwards
Heating - ANSTakes air from outdoor, heats it over chemical "propane" and sends out air again.
Which is worse, Heating or Cooling? - ANSHeating as money owed for 7 - 10% of greenhouse
gasses
Air Purifier - ANSTakes in air and eliminates dust and debris
Activated Carbon (Air Purifier Method) - ANSRemoves dirt through magnetic from the air
Ionizing Purifier - ANSMakes dirt stick to ground and out of air
Foldimate - ANSTakes care of cleaning and folding garments, releases in 2020
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