Asked by Cydney Adger on May 09, 2024
Verified
What is associated with reversed magnetic polarity?
A) a compass needle would point south
B) the magnetic signal of seafloor formed with this polarity would be stronger compared to adjacent areas of the seafloor
C) there are much fewer intervals of reversed polarity than normal polarity
D) all of these
Reversed Magnetic Polarity
A condition where the magnetic north and south poles swap positions, a phenomenon observed in the Earth's geological history.
Compass Needle
The magnetized pointer on a compass that aligns itself with the Earth's magnetic field to indicate the direction of magnetic north.
- Understand the function of magnetic fields in the study of Earth's geology, focusing on magnetic reversals and the expansion of the seafloor.
Verified Answer
JG
Jennifer GarinMay 14, 2024
Final Answer :
A
Explanation :
When the Earth's magnetic polarity is reversed, a compass needle, which aligns with the Earth's magnetic field, would point towards the geographic south instead of the geographic north. This is because the magnetic south pole would be located at the geographic north pole, and vice versa, during periods of reversed polarity.
Learning Objectives
- Understand the function of magnetic fields in the study of Earth's geology, focusing on magnetic reversals and the expansion of the seafloor.