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Science-Mag. Part 2
Test Description: Magnetism
Instructions: Answer all questions to get your test result.
1) a current-carrying wire wrapped around an iron core
A
indirect current
B
electromagnet
C
alternating current
D
direct current
2) colored lights in the sky created by the interaction of Earth's magnetic field and charged particles in the solar wind
A
aurora
B
Northern lights
C
Milky Way galaxy
D
rainbow
3) in the United States, it changes from positive to negative to positive 60 times each second
A
indirect current
B
alternating current
C
direct current
D
electromagnet
4) Magnetic fields are produced by _______________ charges.
A
vibrating
B
moving
C
stationary
D
moving and stationary
5) The magnetic field around a current carrying wire will cause it be _____________ or ________________ by a magnet.
A
started, stopped
B
started, pushed back
C
pushed, pulled
D
pushed, stopped
6) What is the electrical device that converts ________________ energy to _____________ energy.
A
motor, electrical, kinetic
B
motor, thermal, kinetic
C
motor, thermal, electrical
D
motor, electrical, thermal
7) The sun emits ______________ particles that stream though the solar system like an enormous electric current.
A
broken
B
charged
C
uncharged
D
negative
8) The Earth's _________________ deflects most of these charged particles away from us as does the ozone layer.
A
magnetic field
B
magnetosphere
C
magnetic domain
D
atmosphere
9) When charged particles reach the poles, they __________________ atoms in the atmosphere. These collisions release energy in the form of light called ________________.
A
break up, Northern Lights
B
collapse, lightning
C
create, auroras
D
collide with, thunder
10) What is the device that uses a magnetic field to turn ________________ energy into _______________ energy.
A
motor,electrical, kinetic
B
kinetic, electrical
C
electrical, thermal
D
thermal, electrical
*select an answer for all questions
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