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45 Cards in this Set
- Front
- Back
inertia
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tendency of a moving body to remain in motion or a stationary body to remain at rest until an outside force acts on it.
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speed
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the act or state of moving swiftly
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velocity
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the rate of change of position along a straight line with respect to time
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acceleration
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the rate of change of velocity with respect to time; also : change in velocity
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force
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: strength or energy put forth : active power
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gravity
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the force of attraction between all matter and the universe
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chemical bond
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force that holds together the atoms that make up a compound
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compound
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two or more atoms that have been chemically combined
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electron
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subatomic particle with a negative electrical charge
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electron cloud
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region of space around the nucleus of an atom in which electrons may be found
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energy level
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arrangement of electrons within the electron cloud of an atom
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gas
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physical form of matter that does not have a definate volume or shape
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isotope
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atom of an element that has the same atomic number but different atomic mass of another atom of that element
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liquid
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physical form of matter with a definate volume but no definate shape
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mass number
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sum of the numbers of protons and neutrons in an atom
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neutron
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subatomic particle with no electrical charge
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nucleus
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region in the center of an atom that contains the protons and neutrons
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solid
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physical form of matter with a definate shape and volume
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hypothesis
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possible explanation of a problem that is based on facts
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observation
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act of using the senses to gather information
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scientific law
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rule that correctly describes a natural phenomenom
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scientific methods
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organized, logical approaches to scientific research
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theory
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hypothesis or set of hypotheses supported by the results of the experimentation and observation
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variable
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factor in an experiment that can be changed
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aphelion
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point in the orbit of a planet at which the planet is farthest from the sun
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autumnal equinox
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begining of the fall season
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daylight savings time
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system in which clocks are set one hour ahead of standard time from April to October
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international date line
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line running from north to south through the Pacific Ocean where the date changes from one day to the next.
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perihelion
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point in the orbit of a planet at which it is closest to the sun
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revolution
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movement of a planet around the sun
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rotation
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spinning of a planet on its axis
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seismic wave
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vibration that travels through the earth
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standard time zone
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one of 24 regions of the earth in which noon is set as the time when the sun is highest over the center of the region
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vernal equinox
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the begining of spring
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winter solstice
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the begining of winter
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contour line
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line on a map connecting points with the same elevation
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elevation
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height above sea level
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great circle
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any circle that divides the globe in half
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latitude
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angular distance north or south of the equator
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legend
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list of map symbols and their meanings
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longitude
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angular distance east or west of the prime meridian
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meridian
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semicircle on the earth that runs from pole to pole
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parallel
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any circle that runs east and west around the earth parallel to the equator
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Prime Meridian
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the meridian that pass through Greenwich, England designated as O degrees
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scale
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relationship between distance shown on a map and actual distance
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