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Electronics Robotics Final Review 1 (Semester 2)
Test Description: ER
Instructions: Answer all questions to get your test result.
1) Magnetic materials are known as:
A
Ferrous materials
B
Solid materials
C
Heavy materials
D
Electromagnetic materials
2) Which of these metals is magnetic?
A
Aluminium
B
Gold
C
Mild Steel
D
Silver
3) Which of these is NOT required to make an electromagnet?
A
Wire Coil
B
Source of current
C
bar magnet
D
Iron Core
4) Which of these is NOT a factor that effects electromagnet strength?
A
Number of coils
B
Type of material used for core
C
Temperature of the room
D
Amount of current
5) Ferrous metals have large amounts of_______
A
Copper
B
Aluminium
C
Iron
D
Amps
6) What would happen to the magnetic field of a magnet if another magnet was introduced?
A
The magnetic fields would cancel each other out
B
The magnetic field would decrease
C
Nothing would change
D
The magnetic field would increase
7) What is the effect of switching the polarity in an electromagnet?
A
The North and South poles would switch
B
Increased magnetism
C
There would be no effect
D
Decreased Magnetism
8) Which of these items does not require a temporary magnet?
A
Toaster
B
DC Motor
C
Maglev Train
D
Fridge Magnet
9) What is Magnetic Induction?
A
The process of a magnetic becoming non-magnetic
B
The process of doubling the power of a magnet
C
The process of a magnetic material becoming magnetized
D
The process of turning aluminum into steel
10) Which of these is not a type of magnet?
A
Bar Magnet
B
Cast Iron
C
Electromagnet
D
Permanent Magnet
*select an answer for all questions
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