unit review-The Moon Flashcards
why is gravity on the moon lower than earth?
as the moon has lesser mass than the earth, it has a weaker gravitational pull and hence.
how does a lunar eclipse work?
a lunar eclipse occurs when the moon passes directly behind earth and into its shadow.
a lunar eclipse can occur only on the night of a full moon
how does a solar eclipse work?
a solar eclipse occurs when the moon gets between earth and the sun, and the moon casts a shadow over earth.
what is a new moon?
a new moon is caused when the sun is behind the moon. creating no reflection of light
what is a full moon?
a full moon is when the earth is in between the sun and moon
what is a waxing phase?
a waxing phase is when the amount of pot surface is increasing
what is a waning phase?
a waning phase is decreasing the amount of lit surface
what comes first in the lunar cycle?
- new moon
- waxing crescent
- first quarter
- waxing gibbous
- full moon
- waning gibbous
- third quarter
- waning crescent
what is a low tide?
when the tide goes out it means that the waster level is lower
what is a high tide?
when tides come in it means the water level is higher
what is a neap tide?
neap tide are very low tides formed by counteraction of moon and sun
what is a spring tide?
the spring tide are very high tides formed by combination of the moon and sun
how long is the rotation of the moon?
27.3 days
how long is the revolution of the moon?
29.53 days