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Science - World Scholars Cup Questions and Answers 100% Correct | Updated 2024
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Science - World Scholars Cup Questions and Answers 100% Correct | Updated 2024
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Science - World Scholars Cup Questions andAnswers 100% Correct | Updated 2024
Batteries - ANSWER Cathode, Electrolyte, Anode (Top to bottom). Creates
energy through attraction of charges
Discharge - ANSWER Converts chemical energy to electrical energy
Wireless Charging - ANSWER Uses electromagnetic field that sends electrodes
to the battery. Done through two induction coils, one on each device. Electrodes
travel from one coil to another
Exploding Batteries - ANSWER Explodes due to overheating a small filament.
Most likely are Lithium batteries
Silicon Anode - ANSWER Can store 20x more charge than normal batteries
Lithium Metal - ANSWER Can charge more but can explode
Bacteria Battery - ANSWER Uses EXO electrogens (Bacteria) to get energy.
Harness the energy through paper. Energy from cellular respiration.
Direct Current - ANSWER Current flows none stop left to right
Alternate Current - ANSWER Current flows forward then stops a little repeated.
Better for long distance
, British Plugs - ANSWER Due to low copper from ww2 changed plugs to use less
copper
Air Conditioning - ANSWER Uses liquid to cool down air that is then sent out
afterwards
Heating - ANSWER Takes air from outside, heats it over chemical "propane"
and sends out air again.
Which is worse, Heating or Cooling? - ANSWER Heating as accounts for 7 - 10%
of greenhouse gasses
Air Purifier - ANSWER Takes in air and removes dust and particles
Activated Carbon (Air Purifier Method) - ANSWER Removes dust through
magnetic from the air
Ionizing Purifier - ANSWER Makes dust stick to ground and out of air
Foldimate - ANSWER Takes care of cleaning and folding clothes, releases in
2020
Vaccum Cleaner - ANSWER Invented in 1860, sucks up dust using centrifugal
separation
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