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Planets
Test Description: Chapter 3
Instructions: Answer all questions to get your test result.
1) The Sun produces energy by
A
burning fuels such as oil
B
nuclear fission
C
attracting it with the force of gravity
D
nuclear fusion
2) What shape are the orbits of most comets?
A
long, narrow ellipses
B
spherical
C
circles
D
nearly circular ellipses
3) When a meteoroid enters Earth's atmosphere, it produces a streak of light called a(n)
A
comet
B
asteroid
C
meteor
D
meteorite
4) The fact that each planet's orbit is an ellipse was discovered by
A
Kepler
B
Copernicus
C
Galileo
D
Brahe
5) A stream of particles that extends outward from the sun's corona is called
A
chromosphere
B
prominence
C
solar wind
D
a sunspot
6) A(n) ________________________ is a loose collection of ice, dust, and small rocky particles that typically has a long, narrow orbit
A
meteoroid
B
comet
C
asteroid
D
planet
7) In a heliocentric system, Earth revolves around
A
Mars
B
the stars
C
the sun
D
the moon
8) The Great Red Spot is a huge storm on
A
Mercury
B
Saturn
C
Neptune
D
Jupiter
9) Most asteroids orbit the sun
A
between the sun and Mercury
B
between Mars and Jupiter
C
beyond Pluto\'s orbit
D
between Neptune and Pluto
10) A doughnut-shaped region that extends from beyond Neptune's orbit to about 100 times Earth's distance from the sun is the
A
Kuiper belt
B
Asteroid belt
C
Oort cloud
D
heliocentric system
*select an answer for all questions
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