Multiple Choice
What is a dynamo?
A) a rotating body containing fluid whose movement maintains the rotation
B) a rotating magnet whose magnetism maintains the rotation
C) a rotating device that changes motion energy to electrical energy
D) a rotating body that contains fluid and magnetism
Correct Answer:
Verified
Correct Answer:
Verified
Q18: The magnetic north pole migrates about<br>A) 40
Q19: Evaluate the following statement. "Convection is a
Q20: What processes transport heat without moving matter?<br>A)
Q21: Which type of heat transfer occurs without
Q22: What hypothesis has been presented for the
Q24: What did Glatzmaier and Roberts' model suggest
Q25: How many years were required for a
Q26: How do geologists know that the magnetic
Q27: How could the mantle be too thin
Q28: Liquid metal at the base of the