WorksheetsSpring 2021 PMA 1 Most Missed
Total questions: 7
Worksheet time: 14mins
Some constellations are more prominent in the night sky of North Carolina in winter, while other constellations are more prominent in the night sky in summer. Which best explains why this occurs?
because of Earth’s rotation on its axis
because of stars revolving around Earth
because of Earth revolving around the sun
because of the change in the barycenter of Earth
The diagram shows the relationship of the Sun and Earth if Earth’s axis were at a 90° angle relative to its orbit.
How would seasons on Earth differ in this alignment compared to the actual alignment?
Current seasons on Earth would not be affected.
No point on Earth would experience a change in seasons.
The entire planet would experience the same season at all times.
Seasons would switch every six months instead of every three months.
How does the latitude of a region affect its climate?
by increasing the length of days throughout the year
by increasing the amount of energy the land can absorb
by determining the angle of sunlight throughout the year
by determining the rate that tectonic plates can move
The Sun and other stars are powered by nuclear fusion. Which of these statements correctly describes one of the processes that occur during nuclear fusion in stars?
Four hydrogen nuclei combine to become a helium nucleus, absorbing energy.
Four helium nuclei combine to become a hydrogen nucleus, releasing energy.
Four hydrogen nuclei combine to become a helium nucleus, releasing energy.
Four helium nuclei combine to become a hydrogen nucleus, absorbing energy.
The temperate zones of the United States experience changing of seasons from winter to summer. Which is the reason for this annual change of seasons?
the rotation of Earth on its axis
the tilt of Earth’s axis of rotation
the distance of Earth from the Sun
the size and orbit of the Moon around Earth
The diagram shows the difference in sunlight reaching Earth at Points 1 and 2.
Based on the diagram, what is another difference between Points 1 and 2?
Tides will be higher at Point 2 than at Point 1.
The pull from gravity will be greater at Point 2 than at Point 1.
Each day is slightly longer than 24 hours at Point 1 and slightly shorter at Point 2.
The region at Point 1 is experiencing summer while the region at Point 2 is experiencing winter.
India is in the Northern Hemisphere and Australia is in the Southern Hemisphere. In June, it is summer in India and winter in Australia. What is the main reason the seasons are opposite in the two countries?
because Earth is tilted on its axis
because the Sun rotates on its axis
because Earth revolves around the Sun
because of the distance between the countries
