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Electromagnetism
Test Description: Science
Instructions: Answer all questions to get your test result.
1) What is a magnet?
A
Any material that has mas a South and a South
B
Any material that attracts iron, nickel, and cobalt
C
A place in Atlanta
D
The sky
2) Electromagnets are magnets formed when current passes through
A
electric current flow
B
a coil of wire
C
mixture of metals
D
aurora borealis
3) Electromagnet rotates between the poles of a _______________ magnet
A
Negative
B
repulsion
C
Positive
D
permanent
4) broken or cut magnet
A
has two north poles
B
still has two magnetic poles
C
has two south poles
5) Permanent magnets keep their magnetism after they are kept on the magnetic field
A
True
B
False
6) Temporary Magnets are made of materials that soft material like
A
wood
B
paperclips and nails
C
aluminum
D
copper
7) The North Pole form charged particles which are known as
A
Southern Lights
B
Aurora Borealis
C
Aurora Australis
D
North America
8) Michael Faraday is a
A
An European Timer Traveller
B
An Australian Car Racer
C
An American Physicist
D
British Scientist known for his discoveries in electromangetism
9) What happens in a hydroelectric dam?
A
The Potential Energy of lake water is converted to Kinetic Energy, then Mechanical Energy turns the generator
B
The ME turns into PE
C
The KE turns into PE
D
The PE turns into KE
10) Law of Electric Charges
A
Like repels like and opposites attract
B
1
C
1
D
1
*select an answer for all questions
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