Student Exploration: Magnetism (ANSWER KEY)
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Student Exploration: Magnetism
Vocabulary: attract, bar magnet, ferromagnetic, magnetize, north pole, repel, south pole
Prior Knowledge Questions (Do these BEFORE
...
Student Exploration: Magnetism (ANSWER KEY)
Download
Student Exploration: Magnetism
Vocabulary: attract, bar magnet, ferromagnetic, magnetize, north pole, repel, south pole
Prior Knowledge Questions (Do these BEFORE using the Gizmo.)
What happens when you place two magnets close together?
What objects do magnets stick to? Make a list.
What do these objects have in common?.
Gizmo Warm-up: What is attracted to magnets?
A bar magnet is a simple rectangular magnet. If you hang a bar magnet by a string, the north
pole (N) of the magnet will tend to point north while the south pole (S) of the magnet points south.
Look at the materials at the bottom of the Gizmo™. Which ones do you think will stick to a bar
magnet?
Ferromagnetic materials are strongly attracted to magnets. Drag a bar magnet and the piece
of nickel onto the scribbled line. Press Play ().
A. Is nickel ferromagnetic?
B. How do you know?.
Test copper, wood, glass, and iron. Which ones are ferromagnetic?
Activity A:
Attract or
repel?
Get the Gizmo ready:
Check that the MAGNETIC FORCES
tab is selected.
Click Reset ().
Question: How do magnets interact?
Observe: Drag two bar magnets onto the paper and press Play. Then click Reset. Change one of
the magnets (either from N-S to S-N, or vice-versa). Click Play again.
What happened the first time?.
What happened the second time?.
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