
Magnetism Flashcard
Flashcard
•
Science
•
9th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What energy conversion occurs in a loudspeaker?
Back
Electrical energy is converted to mechanical energy.
2.
FLASHCARD QUESTION
Front
True or False: In electromagnetic induction, an electric current is induced by the motion of a magnet relative to a magnetic field.
Back
False. It is induced by the change in magnetic field around a conductor.
3.
FLASHCARD QUESTION
Front
What property should be increased to transmit electrical energy efficiently over long distances?
Back
Voltage should be increased.
4.
FLASHCARD QUESTION
Front
How do you calculate the output voltage of a transformer?
Back
Output Voltage = (Number of turns in secondary coil / Number of turns in primary coil) * Input Voltage.
5.
FLASHCARD QUESTION
Front
What increases the strength of an electromagnet?
Back
Increasing the number of coils of wire around the nail.
6.
FLASHCARD QUESTION
Front
Define magnetism.
Back
Magnetism is a physical phenomenon produced by the motion of electric charge, resulting in attractive and repulsive forces between objects.
7.
FLASHCARD QUESTION
Front
What is an electromagnet?
Back
An electromagnet is a type of magnet in which the magnetic field is produced by an electric current.
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