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Magnet Labs
LCHS Physics
Ewoldsen
Magnet LabsMagnet Labs1. Magnetic Field Lines with Iron Fi
lings2. Magnetic Field Lines with Compa
sses3. Electromagnet4. Solenoid5. Door Chimes
Magnetic Field Magnetic Field Lines LabLines Lab
LCHS Physics
Ewoldsen
• DO NOT put filings directly on magnetDO NOT put filings directly on magnet
• This is a lab my son just did in second grade
• We will extend the lab however by adding extra magnets.
• Make sure that your magnets are true by first checking to see if N - S attract and N – N or S – S repel
• Place the magnets on the table as indicated on the as indicated on the following pagesfollowing pages and place the manila folder over it
• Add iron filings, draw the pattern on your lab paper
• Arrows () start at North and point towards South
• Return filings to the shaker.
• DO NOT put filings directly on magnetDO NOT put filings directly on magnet
NNSS
SS NN
NN NN
NN SS
NN SS
NNSS
NN SS
NN
SS
NN
SS
Return to Table of Contents
Magnetic Field Magnetic Field Lines with Lines with CompassesCompasses
This is what you will be mapping
NNSS
NN SS
NN
SS
NN
SS
You will draw a minimum of 50 lines – equal number from
each magnet
Return to Table of Contents
NN
SS
Electromagnet Electromagnet LabLab
LCHS Physics Ewoldsen
Fill in the following chart using the
procedure outlined in the picture
Vary # loops, and volts
WARNING: The wire will become extremely hot!
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Number of Staples picked up
5 coils
10 coils
15 coils
20 coils
25 coils
30 coils
35 coils
40 coils
45 coils
50 coils
And more if possible
Soleniod and Soleniod and CurrentCurrent
SolenoidsNN SSNN SSNN SSNN SSNN SS NN SS
What happens to the current when you change the direction and speed? What happens if you change the direction of the magnet?
AReturn to Table of Contents
Door Chimes Door Chimes
Observation onlyObservation only
Return to Table of Contents
What would happen if we placed a bell under the nail and switched the generator on and off?