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Samuels PS Earth’s Magnetism
Test Description: Physical Science Earth’s Magnetism
Instructions: Answer all questions to get your test result.
1) Which of the following planets does not have a magnetic field?
A
Venus
B
Saturn
C
Jupiter
D
Neptune
2) An imaginary circle around the earth halfway between the magnetic poles is the ________.
A
magnetocline
B
magnetic equator
C
isogonic line
D
prime meridian
3) What is the stream of charged particles that emanates from the sun called?
A
Van Allen stream
B
cosmic radiation
C
solar wind
D
magnetopause
4) The amount by which a compass needle deviates from true north is the angle of _______.
A
deflection
B
declination
C
incination
D
northern dip
5) Which scientist was the first to propose that earth has a magnetic field?
A
William Gilbert
B
Otto von Guericke
C
Thales of Miletus
D
Benjamin Franklin
6) The extent of a planet's magnetic field in space is known as a _________.
A
magnetosphere
B
agonic line
C
magnetocline
D
magnetopause
7) The donut shaped belts of high-speed particles trapped in Earth’s magnetic field are the ______.
A
solar wind
B
cosmic radiation
C
magnetopause
D
Van Allen radiation belts
8) The southern lights are known as aurora _________.
A
orientalis
B
australis
C
borealis
D
westeros
9) What is the aurora phenomenon caused by?
A
firefly mating season
B
solar wind bringing fire into the upper atmosphere
C
electric charges becoming visible in the upper atmosphere
D
high speed particles crashing into the upper atmosphere
10) What causes the Earth’s magnetic field?
A
solar wind makes the earth disproportionately charged
B
particles around the earth are magnetic
C
core of copper
D
molten core moving
*select an answer for all questions
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