Cumulative Exam — Cumulative exam Answers

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1
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Which shows the correct order of events after the big bang occurred?

A
strong force separated from the unified force, inflationary expansion occurred, quarks and electrons formed, electromagnetic and weak forces separated from the unified force, gravity separated from the unified force
B
electromagnetic and weak forces separated from the unified force, gravity separated from the unified force, strong force separated from the unified force, inflationary expansion occurred, quarks and electrons formed
C
gravity separated from the unified force, strong force separated from the unified force, inflationary expansion occurred, electromagnetic and weak forces separated from the unified force, quarks and electrons formed
D
quarks and electrons formed, electromagnetic and weak forces separated from the unified force, inflationary expansion occurred, strong force separated from the unified force, gravity separated from the unified force
3

If all else stays the same, which change could be made to cause an increase in the gravitational force on a space shuttle?

A
increasing the distance of the space shuttle from Earth
B
decreasing the distance of the space shuttle from Earth
C
increasing the universal gravitational constant acting on the space shuttle
D
decreasing the universal gravitational constant acting on the space shuttle
10

Please select the word from the list that best fits the definition

A
sea-floor spreading
B
continental drift
C
magnetic reversal
D
magnetic minerals
E
fossils
11

Rosalinda wants to calculate the mass of Earth using Kepler’s laws or Newton’s universal law of gravitation.Which data would allow her to find the mass of Earth?

A
the mass of the Sun and the orbital period of the moon
B
the moon’s orbital period and distance from Earth
C
Earth’s distance from the Sun and the moon’s orbital period
D
Earth’s orbital period and distance from the Sun
13

Which shows the correct order of processes leading up to the formation of a main sequence star?

A
Gases condense to form a nebula, gravity causes the nebula to collapse and spin, nuclear fusion occurs, and a protostar forms.
B
A protostar forms, nuclear fusion occurs, gases condense to form a nebula, and gravity causes the nebula to collapse and spin.
C
Gases condense to form a nebula, gravity causes the nebula to collapse and spin, a protostar forms, and nuclear fusion occurs.
D
A protostar forms, gases condense to form a nebula, gravity causes the nebula to collapse and spin, and nuclear fusion occurs.

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