Quarter 1 Exam / Midterm PART 1 Question Preview (ID: 32616)
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What is an atom?
a) Narrow bands of high-speed winds that circle the earth, blowing from west to east
b) Energy that is transferred as a consequence of temperature differences.
c) the smallest chemical unit of matter
d) two or more atoms linked together to make a substance with unique properties
What are molecules?
a) two or more atoms linked together to make a substance with unique properties
b) the smallest chemical unit of matter
c) The moisture content of air
d) The number of molecules of a substance in a mixture for every 1 million molecules in that mixture.
What is concentration?
a) the smallest chemical unit of matter
b) The number of molecules of a substance in a mixture for every 1 million molecules in that mixture.
c) The quantity of a substance within a certain volume.
d) A measure of the energy of random motion in a substance’s molecule.
Narrow bands of high-speed winds that circle the earth, blowing from west to east
a) Jet Streams
b) atom
c) molecule
d) temperature
Energy that is transferred as a consequence of temperature differences.
a) temperature
b) heat
c) barometer
d) humidity
A measure of the energy of random motion in a substance’s molecule.
a) heat
b) temperature
c)
d)
The quantity of a substance within a certain volume.
a) parts per million
b) humidity
c) concentration
d) heat
An instrument used to measure atmospheric pressure
a) thermometer
b) barometer
c)
d)
the smallest chemical unit of matter
a) atom
b) molecule
c)
d)
The moisture content of air
a) humidity
b) concentration
c) heat
d) temperature
The process by which certain gases trap heat that radiates from the earth.
a) Greenhouse Effect
b) ozone
c) heterosphere
d) part per million
The number of molecules of a substance in a mixture for every 1 million molecules in that mixture.
a) temperature
b) concentration
c) parts per million
d)
The lower layer of the atmosphere, where the concentration of the air is the SAME as the air at sea-level
a) heterosphere
b) homosphere
c)
d)
two or more atoms linked together to make a substance with unique properties
a) Atom
b) Molecule
c)
d)
The upper level of the atmosphere where the concentration of the air is very DIFFERENT from the air at sea-level
a) heterosphere
b) homosphere
c)
d)
If you wanted to measure an object’s volume, what metric unit would you use?
a) gram
b) liter
c) meter
d) foot
If an object has a mass of 66 g, what is its mass in kg?
a) 66,000
b) 660
c) .66
d) .066
How many centimeters are in 32.6 meters?
a) 3260
b) 32.6
c) 3.26
d) .326
A metal plaque by the front entrance to our nation’s Capitol in Washington D.C. commemorates the building’s completion in 1826. The plaque is bluish-green in color. What kind of metal is the plaque made of?
a) silver
b) copper
c) gold
d) iron
If the humidity increases over the course of four days, which day will feel the hottest? a. Day 1
a) Day 1
b) Day 2
c) Day 3
d) Day 4
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