Astro 1.1.1 & 1.1.2 mini-quiz

Why does the earth experience precession?

• because the Earth revolves around the sun every 365 days

• because of the movement of the circumpolar stars and Polaris

• because the Earth is the third planet from the sun

• because the plane of the moon’s orbit is tilted from the Earth’s elliptical plane

Which is true about Earth’s motion through space?

• The Earth’s revolution changes the Sun—Earth gravitational pull.

• The Earth’s rotation causes annual changes in its surface temperatures.

• The tilt of the Earth’s axis and its revolution around the sun produces seasons.

• The Earth’s precession affects the amount of heat reflected from its surface.

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

What is most likely to occur when the sun, moon, and Earth are aligned in a relatively straight line?

• a decrease in global wind patterns

• an increase in temperature near the equator

• more earthquakes near the equator and fewer at the poles

• a larger-than-normal height difference between low tide and high tide

Which of these statements best explains the shape of Earth?

• Because of its rotation about its axis, Earth has a greater circumference around the equator than around the Prime Meridian.

• Because of its revolution around the sun, Earth has a greater circumference around the equator than around the Prime Meridian.

• Because of its rotation about its axis, Earth has a greater circumference around the Prime Meridian than around the equator.

• Because of its revolution around the sun, Earth has a greater circumference around the Prime Meridian than around the equator.

Which statement describes the motion of the earth around the sun?

• the speed of earth is constant regardless of distance from sun

• The speed of the earth is constant because the distance remains the same between the earth and sun.

• speed increases the further the earth is from the sun and decreases the closer it is to the sun

• speed increases the closer the earth is to the sun and decreases the further it is from the sun.

If it is summer in the northern hemisphere, which statement is true?

• earth has changed the tilt of its axis by 20 degrees due to revolution

• it is winter in the earth's southern hemisphere due to the tilt of the earths axis

• it is summer in the earth's southern hemisphere due to the tilt of the earths axis

• earth has reached its closest point to the sun due it's revolution

how does a straight line between the earth, sun, and moon impact the tides on earth?

• it produces the greatest change between high and low tides

• it produces the least change in high and low tides

• it produces semi-diurnal tides

• it produces diurnal tides

Which natural process occurs as a result of earth rotating on its axis?

• movement of tectonic plates

• deep ocean currents

• seasonal changes

• day and night

How does earth's tilt affect the seasons?

• by changing the amount of direct solar energy reaching the earth's surface

• by influencing the rate of chemical reactions occurring in the atmosphere

• by deflecting the rays of harmful radiation emitted by the sun

• by changing the speed of the rotation of the earth