QUESTION 1

  1. Which of the following represents the most stable arrangement of electrons?
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 2

  1. Freezing and boiling are examples of
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 3

  1. The electrons at the outer level of the atom are called
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 4

  1. Which state of matter maintains a constant volume but not a fixed shape?
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 5

  1. Which kind of strength describes a material’s ability to withstand twisting?
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 6

  1. Doping is a process that adds
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 7

  1. Which of the following is true about radioactive decay?
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 8

  1. How do two isotopes of the same element differ?
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 9

  1. The difference between nuclear fusion and nuclear fission is that
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 10

  1. The energy source of stars is primarily associated with
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 11

  1. At this moment, the Sun is producing energy by burning
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 12

  1. Approximately how long does it take the energy of the Sun to be transferred from the stellar core to the photosphere?
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 13

  1. The Big Bang theory and the theory of the steady state universe differ
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 14

  1. The discovery of a cosmic microwave background
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 15

  1. According to the nebular hypothesis, the solar system began as
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 16

  1. The Earth’s layered composition is a consequence of
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 17

  1. Scientists study meteorites
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 18

  1. Which of the following was used as evidence for plate tectonics?
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 19

  1. Which of the following describes earthquakes?
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 20

  1. Divergent plate boundaries are associated with
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 21

  1. Every atom in nature attempts to reach a state of lowest
    energy.





2 points

QUESTION 22

  1. When atoms bond to form molecules the chemical potential
    energy is higher than it was before the bonding.





2 points

QUESTION 23

  1. Strength is the ability of a solid to resist changes in shape.





2 points

QUESTION 24

  1. A semiconductor is neither a good conductor nor a good
    insulator.





2 points

QUESTION 25

  1. The electric path that begins at a power plant and ends at your
    desk lamp contains only materials that are good conductors of
    electricity.





2 points

QUESTION 26

  1. The energies available in the nucleus are much greater than the
    energies available among electrons.





2 points

QUESTION 27

  1. Reactions that occur in the nucleus of an atom are independent
    from chemistry controlled by the electrons





2 points

QUESTION 28

  1. The name of an element depends on the number of protons in
    the nucleus of the atom.





2 points

QUESTION 29

  1. Some stars will burn forever





2 points

QUESTION 30

  1. The absolute magnitude of a star is the brightness as seen
    from Earth, depending on the star’s distance from Earth.





2 points

QUESTION 31

  1. A main sequence star in the H-R diagram is in the hydrogen
    burning stage of its existence.





2 points

QUESTION 32

  1. Most galaxies are spiral galaxies.





2 points

QUESTION 33

  1. The more distant a galaxy is from Earth, the slower it moves
    away from Earth.





2 points

QUESTION 34

  1. Elements with more than three protons in their nucleus were
    formed in stars, not during the big bang.





2 points

QUESTION 35

  1. The mantle is the one of two layers of the solid Earth with which
    human beings have had direct contact.





2 points

QUESTION 36

  1. NASA scientists are collaborating with the Center for Disease
    Control on a mission to collect and bring back surface samples from Mars.





2 points

QUESTION 37

  1. Mountains on the Earth are continuously being formed.





2 points

QUESTION 38

  1. Energy from earthquakes is transmitted as light waves.





2 points

QUESTION 39

  1. Evidence for Earth’s magnetic reversals has been found in the East
    African Rift Zone.





2 points

QUESTION 40

  1. The Appalachian Mountains are among the youngest on Earth.





2 points

QUESTION 41

  1. The subsurface molten rock at the base of a volcano is called

2 points

QUESTION 42

  1. An oceanic wave generated by an offshore earthquake is a/an 2 points

QUESTION 43

  1. The hypothesis is the current scientific explanation of how the solar system formed 2 points

QUESTION 44

  1. A/an is a star that rotates rapidly and emits regular bursts of electromagnetic energy.

2 points

QUESTION 45

  1. The brightness of a star as it appears from earth is called its magnitude.

2 points

QUESTION 46

  1. Unlike the fission bomb, the hydrogen bomb relies on nuclear

2 points

QUESTION 47

  1. The ability to withstand pulling apart is referred to as strength.

2 points

QUESTION 48

  1. The addition of a minor impurity to an element or compound is called

2 points

QUESTION 49

  1. The second electron shell out from the nucleus of the atom holds a maximum of electrons.

2 points

QUESTION 50

  1. Two or more metals can be formed to from a/an

2 points

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