What is the principle of electromagnetism?
How Speakers Work

Quiz
•
Physics
•
9th Grade
•
Easy
Amos Hong
Used 4+ times
FREE Resource
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The physical phenomenon of the interaction of the magnetic field formed by electric currents and the external magnetic fields.
The principle of electromagnetism is the study of static electricity
The principle of electromagnetism is the process of converting sound waves into electrical signals
The principle of electromagnetism is the study of the behavior of light in magnetic fields
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of frequency in sound?
Frequency determines the texture of the sound.
Frequency determines the color of the sound.
Frequency determines the temperature of the sound.
Frequency determines the pitch of the sound.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does amplitude affect the sound produced by a loudspeaker?
It affects the volume of the sound produced.
It affects the texture of the sound produced.
It affects the color of the sound produced.
It affects the taste of the sound produced.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the key components involved in the conversion of electrical signals to sound in a loudspeaker?
diaphragm, voice coil, magnet, and cone
battery, resistor, capacitor, and inductor
keyboard, mouse, monitor, and CPU
paper, ink, printer, and scanner
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the principle of electromagnetism apply to the functioning of a loudspeaker?
The magnetic field generates electricity to power the speaker
The electric current causes the speaker to heat up
The electric current creates vibrations in the speaker cone
The electric current interacts with the magnetic field to produce sound waves
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main energy transferred in a loudspeaker?
Converts sound energy into electrical energy
Converts electrical energy into sound energy
Generates a magnetic field
Produces a compression wave
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main part of a loudspeaker that is connected to the moving coil?
Cardboard cone
Permanent magnet
Diaphragm
Tube
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Can a loudspeaker be used as a microphone?
No, it is not possible
No, it is not recommended
Yes, but it is not very effective
Yes, it is very effective
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