8.7 STAAR Practice Question Preview (ID: 50077)
STAAR Practice.
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How does gravity govern the motion of our solar system?
a) Gravity keeps planets in orbit around stars and moons in orbit around planets.
b) Gravity keeps stars in orbit around planets and planets in orbit around moons.
c) Gravity continually expands our solar system by attracting other planets and stars.
d) Gravity continually contracts our solar system with its powerful pull.
It is daytime of the east coast of the United States, but nighttime on the west coast. Which statement best explains why it will become daytime on the west coast before it is nighttime again on the east coast?
a) Earth rotates in a clockwise direction
b) a
c)
d)
a
a) a
b) a
c)
d)
a
a) a
b) a
c)
d)
a
a) a
b) a
c)
d)
a
a) a
b) a
c)
d)
a
a) a
b) a
c)
d)
a
a) a
b) a
c)
d)
a
a) a
b) a
c)
d)
a
a) a
b) a
c)
d)
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