Q1: How are the faces of these magnets magnetized? Sketch a magnet, indicating where the field is strongest and weakest, where it changes direction and so forth. The iron filings in the clear box together with the other magnet will help characterize the fields of these magnets.

The faces of the magnets are magnetized due to the arrangement of the particles within the magnet.

 

Q2: Draw the observed field between two magnets in two different configurations.

Q3: Draw a free body diagram for the steel paper clip.

Q4: If the paper clip shown has a mass of 1.45g, what must be the minimum upward magnetic force upon it?

F = ma 1.45g x 9.8m/s² = 14.2 N

Q5: Which substances do and do not effect the field and how?

None of the substances listed should affect the magnetic field.

Q6: How can you use a second magnet to increase this number (sketch this)?

Q7: Starting from contact, slowly remove the magnet to a distance of 1 cm. Describe what you observe.

Removing the magnet from the top paper clip a distance of 1 cm has no affect on the chain of paper clips, due to the fact that the magnetic field is still is still acting on the top paper clip.

Q8: With a drawing explain this phenomenon in terms of lines of magnetic field

Q9: How many kinds of magnetism must exist? Justify your answer by referring to your observations of magnetic interactions.

There must be two kinds of magnetism, since there are two kinds of interactions being observed. The two magnets either attract or repel each other.

Q10: How do these fields compare to the electric fields you have studied?

The magnetic fields are similar to electric fields. With electricity, opposite charges attract (+ and -) and alike charges repel (+ and +)(- and -). Magnetism is similar to electricity in that opposite poles attract (N and S) and alike poles repel (N and N)(S and S).