DC Motors
Quiz
•
Science
•
12th Grade
•
Practice Problem
•
Medium
+2
Standards-aligned
Lisa Thompson
Used 2+ times
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15 questions
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1.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Give two ways you can reverse the direction of a basic dc motor?
Reverse the current
Keep the current the same
Reverse the magnetic field
Keep the magnetic field the same
Tags
NGSS.HS-PS2-5
NGSS.HS-PS3-5
2.
MULTIPLE SELECT QUESTION
1 min • 1 pt
What does the output torque depend on? Check all that apply.
The electrical input
The size of the wheels
The design of the motor
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is a stator/magnet?
turning coil of wire
made of carbon, used to relay current from external circuit to commutator
stationary part of the motor, it provides a rotating magnetic field that drive the armature to rotate.
Tags
NGSS.HS-PS2-5
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the armature/rotor?
made of carbon, used to relay current from external circuit to commutator
turning coil of wire
battery
Tags
NGSS.MS-PS2-3
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the commutator?
turning coil of wire
ring typically made of copper, ensures that the torque acting on the armature is always in the same direction
battery
Tags
NGSS.HS-PS3-5
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What are the brushes?
made of carbon, used to relay current from external circuit to commutator
ring typically made of copper, ensures that the torque acting on the armature is always in the same direction
stationary part of the motor, it provides a rotating magnetic field that drive the armature to rotate.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
True or False: As you add higher load onto the motor, it will fight back with opposing torque so it keeps rotating.
True
False
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