Shared Flashcard Set

Details

Astronomy
Ms. Phelps Study Guide
15
Science
8th Grade
12/11/2012

Additional Science Flashcards

 


 

Cards

Term
Explain why we do not have an eclipse every month
Definition
Because of of the moon's orbit around Earth is tilted about 5 degress.
Term
Describe the difference between waxing and waning
Definition
Waxing - means the moon is gaining more light
Waning - means the moon is losing light
Term
What phase is the moon during a lunar eclipse?
Definition
A "full moon"
Term
Describe the alignment of Earth, moon and Sun duringa lunar eclipse.
Definition
During a lunar eclipse, the alignment in Sun, Earth, Moon. Earth blocks sunlight from the moon.
Term
Why does a lunar eclipse occur?
Definition
Lunar eclipses occur when Earth passes firectly between the moon and the Sun. Earth's shadow blocks the sunlight.
Term
What phase is the moon during a solar eclipse?
Definition
The moon is a "new moon" during a solar eclipse.
Term
Why does a solar eclipse occur?
Definition
Solar eclipses occur when the moon passes directly between Earth and the Sun.
Term
Describe the alignment of Earth, moon and Sun during a solar eclipse.
Definition
During a solar eclipse the alignment is Sun, Moon, Earth. The MOon blocks sunlight from Earth.
Term
Heliocentric model
Definition
Earth and other planets revolve around the sun - this is the correct model.
Term
Geocentric model
Definition
Earth is the center of the solar system - this is INCORRECT
Term
What planetary motion is responsible fo rday and night?
Definition
Rotation causes day and night.
Term
Rotation
Definition
spin on an axis
Term
Revolution
Definition
Move around or orbit another object
Term
Which planet has longer years, Earth or Jupiter?
Definition
Jupiter's years are longer than Earth's because its orbit is larger, it is furthuer away from the Sun.
Term
What two factors affect gravitational pull on objects?
Definition
Distance and mass
Supporting users have an ad free experience!