Space Flashcards
What are the rocky planets and what are the gas giants?
Planets are mercury Venus Earth and Mars. The gas giants are Neptune Uranus Saturn and Jupiter.
How are comets meteors and astroids different?
A meteor burns up in earths atmosphere, an astroid is a small non-spherical object leftover debris from the solar system formation, a comet is an object made mostly of ice and dust.
What are the layers of the sun?
Core, radiative zone, convective zone, photosphere, chromosphere, corona.
Which layer of the sun is visible in a solar eclipse?
The corona
How is energy produced in the sun?
Nuclear fusion
Describe what causes night and day
The earth rotating around its axis
Describe what causes seasons.
Seasons are caused by the tilt of the earths axis.
What is the summer solstice?
Summer solstice is the longest day of the year it occurs June 20 or June 21 and March the beginning of summer.
What is vernal equinox?
Occurs on March 20 in the spring and it is a day that last 12 hours in a night that last 12 hours.
Explain why there a different phases of the moon.
Because of the relative position of the earth sun and moon.
Identify different shapes of the phases of the moon.
New moon, waxing crescent, waxing quarter, waxing gibbous, full moon, waning gibbous, waning quarter, waning crescent.
What is it called when the moon is between the earth and the sun
Solar eclipse
What is it called when the earth is between the moon and the sun?
Lunar eclipse
Describe the life cycle of medium, large, and very large stars.
A star fuses hydrogen to produce helium in the main sequence phase of a star.
Characteristics of stars
Colour, temperature, size, brightness, composition
List the hottest colour of star to the coolest
Blue, red, yellow.
Describe the difference between apparent magnitude and absolute magnitude.
Absolute magnitude it how bright a star is and apparent magnitude is how bright a star appears from Earth.
Explain why a star could have an absolute magnitude that is greater than its apparent magnitude.
A star could be bright but not appear as bright because it is further away from Earth.
Describe the difference between circumpolar and seasonal constellations.
Circumpolar constellations can always be seen from the North and South Pole and seasonal constellations can only be seen in certain months depending on where the Earth is in its orbit.
Can circumpolar constellations be seen everywhere on earth
No they can only be seen in the North and south poles not in the Equator
What is azimuth?
Azimuth is the angular distance around the horizon between North and the horizon clockwise.
What is altitude?
Azimuth is the angular distance above the horizon to the object.
