Earth Space Exam Review 2023
GRADED A+ (ACTUAL EXAM ) Questions and Answers (Solved)
- Occurs when the Moon passes directly between the Sun and Earth and
casts a shadow over part of Earth
Answer: solar eclipse
- an eclipse in which the moon appears darkened as it passes into the
earth's shadow.
Answer: lunar eclipse
- the average distance between the earth and the sun; useful for
measuring distances within the solar system
Answer: astronomical unit (AU)
- the distance light travels in one year; useful for measuring distances
outside the solar system
Answer: light-year
- As a planet moves around its orbit, it sweeps out equal areas in equal
times; this results in a planet's speed changing during its orbit
Answer: Kepler's Second Law of Planetary Motion
- According to Kepler's 2nd law, does a planet move faster or slower
when it's closer to the sun?
Answer: faster
- Two objects attract each other with a force that is directly proportional
to the mass of each object and inversely proportional to the square of the distance between them.Answer: Newton's Law of Universal Gravitation 1 / 2
- Small, rocky planets that orbit closest to the sun including Mercury,
Venus, Earth, & Mars
Answer: inner planets
- large, gaseous planets that orbit the furthest from the sun including
Jupiter, Saturn, Uranus, and Neptune
Answer: outer planets
- An object that orbits the sun and is spherical, but has not cleared
smaller bodies from the area of its orbit.
Answer: dwarf planet
- color of the hottest stars
Answer: blue
- color of the coolest stars
Answer: red
- a graph relating the surface temperatures and absolute brightness of
stars
Answer: Hertzsprung-Russell diagram
- An object in space whose gravity is so strong not even light can
escape; formed by the death of extremely high mass stars
Answer: black hole
- A small, hot, dim star that is the leftover center of an old low or
medium mass star
Answer: white dwarf
- / 2