science 2 Flashcards
what’s is tidal range.
the difference in levels of ocean water at high tide and low tide
what is gravity?
gravity is a force that pulls you and can also hold the other planets in orbit around the sun
weight is…….
the force of attraction you experience due to gravity
how many degrees is the earths axis is tilted
23.5 degrees
what is mass
mass is the amount of matter in an object.
how many times does an equinox happen each year
twice a year
how long does it take for the earth to spin on its axis
24 hours
what wouldnt there be if the earth wasnt on a tilt
seasons
what is a rotaion
a single complete turn
what is revolution
the movement of one object around another object.
what is an apogee
an apogee is when the moon is furthest from the earth
what is a perigee
a perigee is when the moon closest to the earth
if the moon doesnt produce its own light then what makes it shine
it reflects on the sun
a solar eclipes is when…
you cant see the sun
a lunar eclipse is when…
you cant see the moon
