Question
The closer together magnetic field lines are, the _____ the magnetic force.
closer
farther
stronger
weaker
Magnetic poles always exist in north-south poles.
true***
false
A(n) _____ is an electric circuit that produces a magnetic field.
magnetic battery
electromagnet
coil magnet
coil circuit
A car's horn sounds different as the car approaches. The change in pitch is due to ________. (1 point)
electromagnetism
the Doppler effect***
the absorption of sound
the creation of a vacuum
100% sure about the second one and last one. I dunno about the rest.
closer
farther
stronger
weaker
Magnetic poles always exist in north-south poles.
true***
false
A(n) _____ is an electric circuit that produces a magnetic field.
magnetic battery
electromagnet
coil magnet
coil circuit
A car's horn sounds different as the car approaches. The change in pitch is due to ________. (1 point)
electromagnetism
the Doppler effect***
the absorption of sound
the creation of a vacuum
100% sure about the second one and last one. I dunno about the rest.
Answers
https://quizlet.com/7305529/magnets-flash-cards/
http://www.ece.neu.edu/fac-ece/nian/mom/electromagnets.html
http://www.ece.neu.edu/fac-ece/nian/mom/electromagnets.html
1. stronger
2. true
3. electromagnet
4. The Doppler Effect
I promise this is 100%
2. true
3. electromagnet
4. The Doppler Effect
I promise this is 100%
The closer together magnetic field lines are, the _____ the magnetic force.
A. closer
B. farther
C. stronger
D. weaker
A. closer
B. farther
C. stronger
D. weaker
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