7.2.2 Practice: Taming the Compass
alexisg...@gmail.com
Needle
2. Which pole (north or south) of a compass magnet is attracted to Earth's magnetic north pole? (4 points)
North
3. Is the magnet in a compass a permanent magnet or an electromagnet? (3 points)
Permanent
4. The magnetic north pole and the geographic North Pole are not in the same location.
A. Are the magnetic north pole and the geographic North Pole always the same distance apart? (2 points)
B. Why is this true or not true? (8 points)
A. No
B. Magnetic North Shifts Over Time
5. The angle of difference between the geographic and magnetic poles is called the declination. How does the declination change as you move north from where you live? (5 points)
It Will Move The Same
6. It is important to take the declination into account when you are closer to the poles.
A. What happens to the angle of declination as you get closer to the poles? (2 points)
B. Why is it important to take this into account if you are traveling with a compass? (3 points)
A. Declination Varies More As A Function Of Longitude
B. Because The Compass May Not Be Accurate
7. What characteristic of iron would make it a bad material for the housing around a compass? (5 points)
It Is Magnetic And Would Throw Off Your Dial
8. Recall that this is what a compass would look like if you were orienting yourself to the northwest.
If you wanted to go southeast, how would the compass be positioned? Draw your answer below. (15 points)
Drawn On Paper !!
Ms. Williams
On Wednesday, November 28, 2012 9:11:37 AM UTC-5, alexisg...@gmail.com wrote:
1. What is the name of the line with which a compass aligns? (3 points)Needle
Incorrect
2. Which pole (north or south) of a compass magnet is attracted to Earth's magnetic north pole? (4 points)North
Incorrect. What is the Law of Magnetic Poles?
3. Is the magnet in a compass a permanent magnet or an electromagnet? (3 points)Permanent
3 points
4. The magnetic north pole and the geographic North Pole are not in the same location.
A. Are the magnetic north pole and the geographic North Pole always the same distance apart? (2 points)
B. Why is this true or not true? (8 points)A. No
B. Magnetic North Shifts Over Time
5. The angle of difference between the geographic and magnetic poles is called the declination. How does the declination change as you move north from where you live? (5 points)
It Will Move The Same
No credit
6. It is important to take the declination into account when you are closer to the poles.
A. What happens to the angle of declination as you get closer to the poles? (2 points)
B. Why is it important to take this into account if you are traveling with a compass? (3 points)
A. Declination Varies More As A Function Of Longitude
B. Because The Compass May Not Be Accurate 3 points
7. What characteristic of iron would make it a bad material for the housing around a compass? (5 points)
It Is Magnetic And Would Throw Off Your Dial