energy
If a switch is open will the lights be on? Y/N
No
name 2 properties of metals
conductive
high tensile strength
disease causing organisms are called what?
Pathogens
Name a pollutant
plastic/ gases from fossild fuels etc
how many hearts does an octopus have
3
A air conditioner has 100W of energy supplied to it. 45W of energy is 'useful' and cools the house. 65W of energy is 'wasted' and is given off as heat from an external fan. What is the energy efficiency as a percentage?
45%
type of bonding that occurs when one atom strips an electron from another
ionic bonding
name a non-infectious disease
diabetes
define renewable
able to be renewed in a relatively short space of time (usually within one's lifetime)
what happens to a giraffe if it drinks from a lake for too long
blood rushes to its head and it faints
the name of a circuit where all components are connected in one loop
series circuit
name of a charged atom
ion
what is a pandemic?
an outbreak of an infectious disease that spreads across a large geographic area—such as multiple countries, continents, or the entire world
'clean energy"
eye-sore / high initial cost
27 X 14
378
electricity is the f___ __ ________s
flow of electrons
balance the following equation
Mg + O₂ --> MgO
2Mg + O₂ --> 2MgO
define 'infectious disease" and give one example
transmissable Eg HIV
name 4 "renewable energy" processes
solar, wind, hydroelectric, geothermal, biomass etc
how many hole in ones has tiger woods got
20
state ohm's law
voltage= current X resistance
how many electrons can go in the
1st, 2nd and 3rd valence shells?
1=2
2=8
3=8/18
distinguish between the innate and adaptive immune systems
innate: physical and chemical barriers
adaptive: creation of specialised antibodies/memory cells
What is the term for using natural resources at a rate that allows them to replenish themselves, ensuring they remain available for future generations?
sustainability
who is the GOAT
Messi lol @ ben