Magnetic Poles - Questions

Magnetic Poles
































Underneath a point near the geographic north pole of the earth lies a magnetic

(A) north-seeking pole.
(B) south-seeking pole.
(C) mountain.
(D) valley.

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Under Construction

Underneath a point near the geographic north pole of the earth lies a magnetic

(A) north-seeking pole. --- No.
The north pole of a compass would then point south.

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Questions --- What this question is about
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Underneath a point near the geographic north pole of the earth lies a magnetic

(B) south-seeking pole. --- Yes.
It attracts the north-seeking poles of compasses.

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Underneath a point near the geographic north pole of the earth lies a magnetic

(C) mountain. --- No.
That would not explain compasses.

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Questions --- What this question is about
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Underneath a point near the geographic north pole of the earth lies a magnetic

(D) valley. --- No.
That would not explain compasses.

Try again.
Questions --- What this question is about
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A set of three bar magnets has been marked by putting a dab of red paint on one end of each. Which of the following situations is impossible?

(A) All of the red-ends repel each other.
(B) All of the red-ends attract each other.
(C) Two red-ends attract each other.
(D) Two red-ends repel each other.

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A set of three bar magnets has been marked by putting a dab of red paint on one end of each. Which of the following situations is impossible?

(A) All of the red-ends repel each other.
No. They could all be north poles, for example.

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A set of three bar magnets has been marked by putting a dab of red paint on one end of each. Which of the following situations is impossible?

(B) All of the red-ends attract each other.
Yes. Only two can be opposite poles.

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A set of three bar magnets has been marked by putting a dab of red paint on one end of each. Which of the following situations is impossible?

(C) Two red-ends attract each other.
No. One could be S and the other N.

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Questions --- What this question is about
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A set of three bar magnets has been marked by putting a dab of red paint on one end of each. Which of the following situations is impossible?

(D) Two red-ends repel each other.
No. You just need two like poles painted red.

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Questions --- What this question is about
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A compass needle is used to test the magnetization of an object by putting the needle near every different part of the object and watching which way it points. Which of the following results is possible?

(A) the needle always points away from the object.
(B) the needle points at some parts and away from others.
(C) the needle always points toward the object.

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A compass needle is used to test the magnetization of an object by putting the needle near every different part of the object and watching which way it points. Which of the following results is possible?

(A) the needle always points away from the object.
No. The object would be an isolated north pole.

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Questions --- What this question is about
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A compass needle is used to test the magnetization of an object by putting the needle near every different part of the object and watching which way it points. Which of the following results is possible?

(B) the needle points at some parts and away from others.
Yes. Some parts are north poles while others are south poles.

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A compass needle is used to test the magnetization of an object by putting the needle near every different part of the object and watching which way it points. Which of the following results is possible?

(C) the needle always points toward the object.
No. The object would be an isolated south pole.

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Which way does the earth's magnetic field point at a position directly over the magnetic north pole (somewhere in the far north).

(A) north. (B) south. (C) up. (D) down.


Questions --- What this question is about
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Which way does the earth's magnetic field point at a position directly over the magnetic north pole (somewhere in the far north).

(A) north. --- No.
If it does, you need to go farther north..

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Questions --- What this question is about
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Which way does the earth's magnetic field point at a position directly over the magnetic north pole (somewhere in the far north).

(B) south. --- No.
If it does, you are too far north.

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Questions --- What this question is about
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Which way does the earth's magnetic field point at a position directly over the magnetic north pole (somewhere in the far north).

(C) up. --- No.
Magnetic north is a south-seeking pole. It attracts the compass north-seeking pole.

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Questions --- What this question is about
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Which way does the earth's magnetic field point at a position directly over the magnetic north pole (somewhere in the far north).

(D) down. --- Yes.
That is the direction of the force on a north-seeking pole.

Check the other answers.
Questions --- What this question is about
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