Astronomy A ( fall 2015) Flashcards
All objects are attracted to each other by the force of
gravity
Which motion causes day and night on a planet
a. Revolution
b. Rotation
Rotation
What date is the Fall Equinox?
September 21st each year
What date is the Spring Equinox?
March 21st each year
What date is the Winter Solstice?
December 21st each year
What date is the Summer Solstice?
June 21st each year
The highlands on the Moon’s surface are______
mountainous areas created when the moon cooled.
In science we never trust the work of individual scientists. They could be making a mistake. Other scientists must review the methods and results in a process called:
Peer review
Our Earth is not a perfect sphere. It’s real shape is called
An oblate sphere
True or False, Facts need to be testable, observable and measurable in an experiment
True
The melting of the sea ice in the arctic ocean is changing the planets reflectively. Less ice means the planet will get?
a. colder by reflecting the heat back into space.
b. warmer because less sunlight is reflected back into space
c. warmer because ice is cold.
d. colder because Polar Bears feed on the ice.
b. warmer because less sunlight is reflected back into space
The temperature of the moon’s surface varies greatly from day to night because the moon has_______
no atmosphere
How long is the Earths rotation?
about 24 hours
How long is the Earths Revolution?
365.24 days
How long is the wobble of the Earths axis?
26,000 years
