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WorksheetsWorld Scholars Cup 2019 - Science (Enabling Technology)
Total questions: 15
Worksheet time: 9mins
Why can a standard battery not be recharged?
Corrosion of cathode by energy-producing chemical reaction
Corrosion of anode by energy-producing chemical reaction
Low rated capacity
Dischargement
What is the correct connection between current type and direction?
Alternating Current ("AC") - the current only flows in one direction
Direct Current (“DC”) - changes direction periodically
Alternating Current ("AC") - changes direction periodically
Direct Current (“DC”) - the current only flows in one direction
Why do diffrent regions use diffrent plugs?
Has their own advantages
Diffrent plugs are suitable for their country
Different countries prioritize differently
Due to Enemy above conspiracy
How does ionizing filter work?
Uses a bed of activated carbon to remove contaminants and impurities, using a method called chemical adsorption
Uses high voltage to electrically charge air molecules which results in a net positive charge which then gets trapped in the filter.
Traps pollutant molecules in the fluid to be treated and removed inside the pore structure of the carbon substrate
What was most known as "Force behind the improvement of women's position in society" ?
Washing machines
Dishwashers
Vacuum cleaners
Home robots
Toaster
Which current does Magnetic stove (Induction cooking) use?
High-frequency Direct Current
Low-frequency Direct Current
High-frequency Alternating Current
Low-frequency Alternating Current
What does the "rapidly alternating magnetic field" penetrating the object with on the Magnetic stove?
Joule heat
Eddy currents
Hydrogen bonds
Hot air
What does the EFTPOS (Electronic funds transfer at point of sale) terminal do?
Allows a merchant to capture required credit and debit card information
Transmit transaction data to the merchant services provider or bank for authorization
To transfer funds to the merchant.
Modify the balance of the card in the magnetic strip
Customer provides signature
What was the Quick Response Code for developed for?
Warehouses
Supermarkets
Cargo transportation industry
Reed–Solomon error correction
Automotive industry
What are the 4 encoding type for a Quick Response Code?
Numeric
Upper-case Alphanumeric
Byte/binary
Kanji
Lower-case Alphanumeric
Which country does Chip and pin card belong to?
JP
CH
UK
US
FR
What is the relationship between NFC and RFID technology?
NFC is a specialized subset within the family of RFID technology
RFID is a specialized subset within the family of NFC technology
RFID is radio frequency based; NFC is electromagnetic field based
What is the length of a single particle of a Magstripe?
1/2,000,000 inch
1/20,000,000 Inch
1/200,000 inch
1/20,000 inch
Which disability will most likely cause a person to use a Optophone?
Hearing disability
Vision disability
Mental disability
physical disability
intellectual disability
What is a Prosthetic?
a set of positive principles underlying and guiding the work of a particular artist or artistic movement.
interdisciplinary subfield of computational linguistics
a device designed to improve hearing by making sound audible to a person with hearing loss
an artificial device that replaces a missing body part
