The Solar System And Beyond Lesson 1 Flashcards
The path one object travels around another object
Orbit
The force of attraction between any two objects due to their mass
Gravity
The tendency of an object to keep moving in a straight line
Inertia
One complete trip of one object to round another object
Revolution
A complete spin on an axis
Rotation
An instrument that makes distant objects seem larger and
Telescope
The sun and all objects that orbit around it is called the
Solar system
A — is any object that orbits another object
Satellite
A— is a large round object in space that orbits a star
Planet
Is the first planet
Mercury
Is the second planet
Venus
Is the third planet
Earth
Is the fourth planet
Mars
Is the fifth planet
Jupiter
Is the sixth planet
Saturn
Is the eighth planet
Neptune
—-planets are made of rock and ice and their orbits cross orbit of other space objects
Dwarf
The — is the center of the Solar System
Sun
———-and——-keep the Earth and all other planets in orbit around the sun
Gravity and inertia
The — is the only natural satellite of Earth
Moon
The moon’s gravity affects the Earth because it causes the Earths
Tide
When half the Earths surface faces the sun we’re having
Daylight
When half the Earths surface faces away from the sun
Darkness
——— is the way something seems to move
Apparent motion
As the Earth rotates West to East objects appear to move from —— to ——-
East to West
Te sun doesn’t
Move
Earth’s orbit around the Sun takes —— days or 1 year
365 1/4 days
The ——- happen be a of both the Earths tilted axis and its revolution around the sun
Seasons
When the Northern hemisphere tilts away from the sun it is having—- and the southern hemisphere is having summer
Winter
When the Northern hemisphere tilts away from the sun it is having—- and the southern hemisphere is having winter
Summer
The northern hemispheres summer solstice occurs around
June21
The northern hemispheres winter solstice occurs around
December 21
