Exam (elaborations)
Science - World Scholars Cup Questions and Answers 100% Correct | Updated 2024
- Course
- Institution
Science - World Scholars Cup Questions and Answers 100% Correct | Updated 2024
[Show more]
Content preview
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
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller StudySet. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75632 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now
