MIDTERM Review - Semester 1 - Physical Science - Part 1 Question Preview (ID: 26783)


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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) the smallest chemical unit of matter
c) The number of molecules of a substance in a mixture for every 1 million molecules in that mixture.
d) two or more atoms linked together to make a substance with unique properties

What is a molecule?
a) Energy that is transferred as a consequence of temperature differences.
b) The moisture content of air
c) two or more atoms linked together to make a substance with unique properties
d) the smallest chemical unit of matter

What is concentration?
a) The quantity of a substance within a certain volume.
b) The number of molecules of a substance in a mixture for every 1 million molecules in that mixture.
c) A measure of the energy of random motion in a substance’s molecule.
d) The lower layer of the atmosphere, where the concentration of the air is the same as the air at sea-level

What is humidity?
a) An instrument used to measure atmospheric pressure
b) The process by which certain gases trap heat that radiates from the earth.
c) Energy that is transferred as a consequence of temperature differences
d) The moisture content of air

What is greenhouse effect?
a) The process by which certain gases trap heat that radiates from the earth.
b) An instrument used to measure atmospheric pressure
c) The lower layer of the atmosphere, where the concentration of the air is the same as the air at sea-level
d) Energy that is transferred as a consequence of temperature differences.

What is Part Per Million?
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) two or more atoms linked together to make a substance with unique properties
d) The quantity of a substance within a certain volume.

What are Jet Streams?
a) Energy that is transferred as a consequence of temperature differences. _____ 3. Concentration C. A measure of the energy of
b) The upper level of the atmosphere where the concentration of the air is very different from the air at sea-level
c) Narrow bands of high-speed winds that circle the earth, blowing from west to east
d) the smallest chemical unit of matter

What is heat?
a) Energy that is transferred as a consequence of temperature differences.
b) A measure of the energy of random motion in a substance’s molecule.
c) An instrument used to measure atmospheric pressure
d) The moisture content of air

What is a barometer?
a) A measure of the energy of random motion in a substance’s molecule.
b) An instrument used to measure temperature
c) An instrument used to measure volume
d) An instrument used to measure atmospheric pressure

What is the homosphere?
a) The upper level of the atmosphere where the concentration of the air is very different from the air at sea-level
b) The lower layer of the atmosphere, where the concentration of the air is the same as the air at sea-level
c)
d)

What is the heterosphere?
a) The upper level of the atmosphere where the concentration of the air is very different from the air at sea-level
b) The lower layer of the atmosphere, where the concentration of the air is the same as the air at sea-level
c)
d)

What is temperature?
a) Energy that is transferred as a consequence of temperature differences.
b) A measure of the energy of random motion in a substance’s molecule.
c) The moisture content of air
d) The quantity of a substance within a certain volume.

What would measure an objects volume?
a) gram
b) meter
c) liter
d) slug

If an object has a mass of 75 g, what is its mass in kg?
a) 75,000
b) 750
c) 0.75
d) 0.075

How many centimeters are in 1.6 meters?
a) .16
b) 1.6
c) 160
d) 1600

A metal plaque turns blue/green. What is the plaque made of?
a) gold
b) copper
c) silver
d) platinum

Two different cleaning products have exactly the same active ingredient. One is “industrial strength” and cleans much more effectively than the other, which is “regular strength”. If they each have the same active ingredient, what is the difference?
a) There is more of one than the other
b) the regular strength is more concentrated
c) the industrial strength is more concentrated
d)

Why is the greenhouse effect important?
a) We would freeze without it
b) It would be too hot to survive without it
c)
d)

Will water evaporate in 100% humidity?
a) No
b) Yes
c)
d)

Is the air cleaner today or was it cleaner 30 years ago?
a) 30 years ago
b) Today
c)
d)

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