General
The movement of a planet around its axis is called ____
rotation
____ is a resistance to a change in motion
Inertia
Tides on Earth comes from the gravitational pull on the Earth's ____
oceans
The time of year when the Sun is directly overhead of the Equator is called the ____.
equinox
The Earth casts a shadow on the Moon during a ____ eclipse.
lunar
The path of a planet as it revolves around the Sun is called its ____
orbit
Inertia is directly proportional to ____
mass
____ tides occur when the Sun is at right angles to the line connecting the Earth and the Moon.
Neap
The time of year when the Sun is furthest north or south of the Equator is the ____
solstice
The Moon casts a shadow on the Earth during a _____ eclipse.
solar
The time it takes to complete a revolution around the Sun is called a _____.
period
Why is a day on Earth 24 hours?
It takes the Earth 24 hours to complete a rotation
___ occur when the Earth, Moon, and the Sun are aligned.
Spring
The daylight is the longest during the ____ solstice.
summer
A solar eclipse is partial at a location which is aligned with the _____ portion of the shadow cast by the Moon
penumbra
True or False. The planets' orbits around the Sun are circular
False
According to the ____ ____ _____, the gravitational force between two masses is inversely proportional to the _____
distance squared
During which part of the lunar cycle do spring tides occur?
During the new and the full moons.
The daylight is the shortest during the ____ solstice
winter
A solar eclipse is total at a location on Earth which is aligned with the ____ portion of the shadow cast by the Moon.
umbra
True or False. A spacecraft's thrust is caused by fuel consumption
True
Why does the Sun exert a strong gravitational pull on all the planets orbiting around it?
The Sun has a very large mass
Why are high tides less extreme for neap tides than for spring tides?
The gravitational pull from the Sun on Earth opposes the gravitational pull on Earth from the Moon
Daylight on Earth is ____ hours long during an equinox.
12
Why is a lunar eclipse only possible during a full moon?
The sunlight hits the Earth which maximizes the shadow it casts on the Moon