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Electronics Robotics Final Review 1 (Semester 2)
Test Description: ER
Instructions: Answer all questions to get your test result.
1) What are the 2 opposite sides of a magnet called?
A
North and South Poles
B
On and Off
C
North and South
D
Left and Right
2) Which of these devices does not use a DC Motor
A
Elavator
B
hairDryer
C
RC Car
D
Cordless Drill
3) Magnetic materials are known as:
A
Solid materials
B
Electromagnetic Materials
C
Ferrous materials
D
heavy materials
4) A DC motor converts ________
A
Mechanical energy into Electrical energy
B
Current into Voltage
C
Electrical Energy into Mechanical Energy
D
Movement into current
5) Which of these is NOT required to make an electromagnet?
A
Source of current
B
Bar Magnet
C
Iron Core
D
Wire Coil
6) What is Magnetic Induction?
A
The process of doubling the power of a magnet
B
The process of turning aluminum into steel
C
The process of a magnetic material becoming magnetized
D
The process of a magnetic becoming non-magnetic
7) Which of these items does not require a temporary magnet
A
Toaster
B
Maglev Train
C
Fridge Magnet
D
DC Motor
8) Which one of these parts is NOT required in a DC motor
A
Fan
B
Armature (coil)
C
magnet
D
Brushes
9) A DC generator converts ______
A
Electrical energy into Mechanical energy
B
Current into Movement
C
Mechanical energy into Electrical energy
D
Voltage into Current
10) The right hand rule explains:
A
The amount of magnetism
B
The direction of current flow
C
None of the above
D
The size of current flow
*select an answer for all questions
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