Space
What are the planets in our solar system? Which ones are considered internal planets?
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune. Mercury-mars
What are the 3 subatomic particles in an atom and where in the atom are they located?
neutron (nucleus), proton (nucleus), electron (energy levels)
What are the main nutrient cycles? which one is the most important for life?
Carbon, nitrogen, phosphorus, and water. water is the most important
What is the difference between a wet cell and a dry cell?
In a dry cell the electrolyte is a paste, while in a wet cell it is a liquid
What is the difference between a cell and a battery
A battery is a two or more cells that are connected
What is considered a celestial body?
Stars and planets
What does the atomic number represent? What does the mass number represent?
thee number of protons, the number of protons and neutrons
What does tropic efficiency mean? about how much is it between levels? This is related to biomass, what are some reasons that biomass decreases as you go up the levels
it is a measure of how much energy in an organisms at one trophic level is transferred to the next. 10%. 1)herbivores dont eat the entire plant 2) not everything eaten is digested 3)energy is lost to bodily processes
What does Current measure?
I = C/s
What is the oort could
small ice debris at the furthest point of our solar system
What is the difference between the geocentric model of the universe and the heliocentric
geocentric says that earth is the centre of the universe, while the heliocentric one says that it is the sun
Can you tell what an element is by looking at its neutrons? if not, what should you look at?
no, you should look at the protons
What is the difference between mutualism and commensalism (hint they are both biotic interactions)
mutualism is when two different species interact and they both benefit, commensalism is when two different species interact, but one benefits and the other is unaffected
What formula does ohms Law give you? Use it to solve this: I have a series circuit with a charge of 10c passing through a given point every 5 seconds powered by a 12v battery. What is the resistance?
R=V/I (or some variation). 6
What are the 4 spheres that matter cycles through?
bio, litho, atmo, hydro,
What are 2 differences between the sun and the moon?
the sun provides light, energy, the moon does not
the sun is always shining while the moon goes through phases
the sun is way farther from earth than the moon
the moon is trapped in earths gravity, while the earth is trapped in the suns gravity
What is an isotope?
an atom of an element that has the same number of protons but different number of neutrons
human impact on ecosystems is usually measured by what? what does this measure take into account
Ecological footprint. It incorporates energy use, land use and waste production
What is the difference between electrical power versus electrical energy?
power is the rate of electricity use, while energy is the amount of energy used when a device is on a specific setting
What is the effect of adding another light bulb to a series circuit versus a parallel circuit? What does this have to do with voltage?
How does the Earths tilt give us seasons
At certain times of the year the norther hemisphere is closer to the sun, at others the southern hemisphere is closer (solstices). On the equinoxes, both hemispheres are equidistance from the sun.
What is the difference between what happens to valence electrons in a ionic bond versus a covalent bond. Which is stronger?
in ionic, the electrons are fully transferred, in a covalent, they are shared. An ionic bond is stronger
What is the difference between an ecosystem, population, and community
ecosystem = all of the interacting parts of a biological community and its environment (biotic and abiotic interactions)
population= a group of individuals that belong to the same species that live in the same place at the same time.
community = the different species who live in the same place at the same time.
Calculate the electrical energy (amount of use) of a washing machine with a power rating of 50kw that is used for an hour and a half?
75kwh
Describe how matter is divided into categories using the terms: mixtures, element, pure substances and compounds. describe each term
matter--> mixture
---> pure substance --> element
--> compound
mixture is a substance that is physically combined. a pure substance only has one type of particle, an element only has one type of atom in its particle while a compount has multiple types of atoms, but are chemically bonded to make one particle