Astronomy

Question 1

Which of the following best illustrates the relative positions of the Earth, Sun, and Moon during a full moon?

Answer 1

Moon, earth, sun aligned

Question 2

Which of the following best accounts for day and night on Earth?

Answer 2

the Earth’s rotation on its axis

Question 3

Which of the following characteristics is associated with the planet Mercury?

Answer 3

extreme temperature variations

Question 4

When is it safe for students to look directly at a lunar eclipse?

Answer 4

At all times

Question 5

Of the following, which color star has the highest surface temperature?

Answer 5

Blue

Question 6

Which of the following best illustrates the relative positions of the Earth, Sun, and Moon during a crescent moon?

Answer 6

From Earth’s point of view, only a sliver of the Moon is lit by the Sun during a crescent moon. Most of the Moon appears dark, being lit only by reflected light from the Earth.

Question 7

Which of the following best illustrates the relative positions of the Earth, Sun, and Moon during a first-quarter moon?

Answer 7

From Earth’s point of view, half of the Moon is lit by the Sun during a quarter moon. This occurs when a line from the Earth to the Moon is perpendicular to a line from the Earth to the Sun.

Question 8

Australia experiences which of the following seasons when the southern end of Earth’s axis is tilted toward the sun?

Answer 8

Summer

Question 9

Which of the following types of stars is a large, relatively cool star with a small core that fuses helium into carbon?

Answer 9

Red Giant

Question 10

Michelle enjoys watching an eclipse. What caused the solar eclipse she observed today?

Answer 10

The moon moved directly in between the sun and the Earth, blocking the sun’s light from fully hitting the Earth.

Question 11

Which of the following causes the lunar cycle as observed from Earth?

Answer 11

the orbit of the moon around the Earth

Question 12

Which of the following describes the orientation of Earth’s axis relative to the Sun during the vernal equinox, the first day of spring in the northern hemisphere?

Answer 12

Neither end of the axis is tilted toward the Sun.

Question 13

Which of the following describes the phase of the Moon during a total solar eclipse?

Answer 13

New

Question 14

Which of the following is primarily a result of the Earth’s tilt on its axis?

Answer 14

Seasons

Question 15

What is the composition of 98% of the Sun?

Answer 15

hydrogen and helium

Question 16

Which of the following refers to the amount of light emitted by a star?

Answer 16

Absolute Magnitude

Question 17

Which of the following best describes the conditions of a full moon?

Answer 17

A full moon occurs when the Earth is between the Sun and the moon.

Question 18

Which of the following describes a nebula?

Answer 18

a giant cloud of gas and dust that is found in deep space

Question 19

Which of the following produces the lunar phases as seen from Earth?

Answer 19

The Moon’s revolution around the Earth

Question 20

What is the state of matter of the Sun’s core?

Answer 20

Plasma

Question 21

Our solar system contains many components. Which object is at the center of the solar system?

Answer 21

Sun

Question 22

Which of the following materials will allow students to safely observe a solar eclipse if a teacher decides to bring her class outside to watch it? Select all that apply.

Select all answers that apply.

Answer 22

Eclipse Glasses and A pinhole projection device

Question 23

A year on Earth is approximately 365 days, while a year on Venus takes about 224 Earth days, and a year on Mars takes about 687 Earth days. What causes the number of days in a year on each of these planets to differ from one another?

Answer 23

Different distances

Question 24

Which of the following is a stage in the life cycles of both low-mass and high-mass stars?

Answer 24

Red giant

Question 25

The seasons are caused by the tilt of Earth’s axis as the Earth orbits the Sun. Which of the following correctly describes the changes in the tilt of Earth’s axis as the Earth moves around the Sun?

Answer 25

The tilt remains constant throughout the year.

Question 26

Which of the following describes the positioning of Earth’s axis relative to the Sun during the autumnal equinox, the first day of fall in the northern hemisphere?

Answer 26

All points on the axis are equally distant from the Sun.

Question 27

Which of the following is a transitory phase of the lunar cycle?

Answer 27

Waxing Cresent

Question 28

Where is all the energy of the Sun produced?

Answer 28

Sun’s core

Question 29

Which of the following describes the orientation of Earth’s axis relative to the Sun during the winter in the northern hemisphere?

Answer 29

The north end of the axis is tilted away from the Sun.

Question 30

Comets are composed of:

Answer 30

gas, dust, and ice

Question 31

What period of time can be measured by one rotation of the Earth on its axis?

Answer 31

One day

Question 32

If there is a full moon tonight, how many days will pass until the next full moon?

Answer 32

28

Question 33

A bright ring is present around the Sun during a total solar eclipse. What is the source of that bright ring?

Answer 33

the sun’s corona

Question 34

Which of the following is an inner planet?

Answer 34

Mercury

Question 35

What period of time can be measured by roughly one revolution of the moon around the Earth?

Answer 35

One month

Question 36

Which of the following is the name for a group of stars and their systems that are held together by gravity?

Answer 36

Galaxy

Question 37

The tilt of the Earth causes

Answer 37

The seasons

Question 38

Which of the following is not a type of galaxy?

Answer 38

regular