Gravity is pulling an object down with a force of 300 Newtons. A parachute is pulling the object up with a force of 250 Newtons. The net force on the object is ___ ___
(Answer should have a number and direction)
50 Newtons Down
____: To spin on an axis.
____: To orbit something.
Rotation... Revolution
The _______ model stated that the earth was at the center of the solar system, but the _________ corrected this model by placing the sun at the center of the solar system.
Geocentric...heliocentric
Distance/Time=____
Speed
What theory in science is defined by these ideas:
Cell Theory
____: The force that opposes motion caused by surfaces rubbing.
____: The force attracting objects to each other, caused by their mass and the distance between them.
Friction
Gravity
___: The number (ish) of days it takes the earth to revolve around the sun.
___: The number (ish) of days it takes the moon to revolve around the earth.
365.25
27.3
Nebula
Solubility, density, boiling point, melting point, and conductivity.
physical
These three organelles are in plant cells but not animal cells. They all start with "C"
Central ____: Stores water
__________: Does photosynthesis
Cell ____: provides rigid structure for plant cell.
Central Vacuole
Chloroplast
Cell Wall
The subatomic particle with a negative charge is the _____, the particle with a positive charge is the _____, and the one with no charge is the ____.
Electron... Proton... Electron
_____ eclipse: Sun -> Moon -> Earth
_____ eclipse: Sun -> Earth -> Moon
Solar
Lunar
Jupiter -> Saturn -> Uranus -> Neptune
chemical
__-karyote: This kind of cell HAS a nucleus and membrane bound organelles.
__-karyote: This kind of DOES NOT have a nucleus and membrane bound organelles
Eukaryote
Prokaryote
Out of the 3 main states of matter, waves travel fastest in ____ and slowest in ____.
Solids...gasses.
If the moon is only slightly illuminated, and the light is on the left side of the moon as seen by us in the northern hemisphere... The phase would be a ________.
Waning Crescent
____: the actual brightness of a star
____: The brightness of a star as viewed from earth.
Luminosity/absolute magnitude
Apparent magnitude
____: State of matter with least molecular movement
____: State of matter where molecules slide by each other.
____: State of matter with most molecular movement (except for the next one)
____: State of mater where molecules become IONIZED (lose electrons)
Solid
Liquid
Gas
Plasma
____+_____+ energy are the REACTANTS for photosynthesis and PRODUCTS of cell respiration.
____+_____ are the PRODUCTS of photosynthesis and the REACTANTS of cell respiration.
CO2+H2O
O2+Glucose
_____: The number of waves passing a given point in a second, measured in Hz.
_____: The distance between a point on a wave and the identical point on the next wave.
Frequency... Wavelength.
Spring tide is when the difference between high and low tide is great, and this happens during a _____ or ______ moon.
Neap tide is when the difference between high and low tide is small, and this happens during a _____ or _____ moon.
First quarter or 3rd/last quarter
The PRESENCE of this is why Venus is so hot both day and night, and the ABSENCE of this is why Mercury has a huge temperature swing from day to night and gets beat up by Meteorites so badly.
Atmosphere OR greenhouse effect.
Three ways heat transfers:
___: transfer of heat through space (like sun's heat)
___: transfer of heat by currents (like water in a pot)
___: Transfer of heat by objects contacting each other (like a metal pan on a hot stove)
Radiation
Convection
Conduction
Both start with "M"
____: formation of 2 identical cells from one original cell (regular body cells)
____: formation of 4 unique cells from one original cell (sperm or egg)
Mitosis
Meiosis