Experiments with magnets

Workshop for fans of physics

Author: Daniel Sjöholm, Spanga, Sweden

Online since: 09/09/2013, Number of visits: 579061

Orientation week for new students

Each year the last week of August we at the Royal Institute of Technology in Stockholm welcome about 130 students interested in physics to our Master of Science in Engineering Physics. As part of a two-week welcome, we always come up with a program for the new students. This year the theme was magnetism.

Our magnet workshop

For our workshop, we created a booth showcasing several experiments. A few friends and I demonstrated the experiments with the neodymium magnets, making sure the students came away with a clear understanding. We found the ideas for our experiments among your customer applications and would like to introduce a few of the experiments below:

Gauss pistol

The first station demonstrated the so-called Gauss pistol.

We got the idea from your customer applications Gauss cannon and The Launching Pad. We used:

Electric motor

The students also had the opportunity to build an electric motor with simple parts.

The customer application The World's Simplest Electric Motor inspired us to try this experiment. We used:

1 disc magnet S-15-08-N

The levitating magnetic rod

Another favorite was the levitating rod magnet.

This experiment is based on our namesake project Levitating rod magnet. We used:

10 rod magnets S-04-25-N

The twirling sphere

An interesting experiment on the topic of magnetic repulsion was the twirling sphere.

The inspiration was the namesake customer application Swirling sphere. We used:

20 disc magnets S-08-05-N
4 disc magnets S-03-03-N
1 Steel balls Ø 12,7 mm

Slowly dropping sphere

The last experiment illustrated electromagnetic induction.

This experiment was based on the customer application Aluminum Foil as Contact-Free Parachute. We used:

1 sphere magnet K-19-C

Articles used

Steel balls Ø 12,7 mm

not magnets!, ferromagnetic, nickel-plated
To combine with neodymium magnets

	10 pcs.	0,45 EUR ea.*
from	40 pcs.	0,40 EUR ea.*
from	80 pcs.	0,38 EUR ea.*
from	160 pcs.	0,35 EUR ea.*
Ask for a rebate from 5 000 pcs.

Available: 18 340 pcs.

W-12-N

Cube magnet 12 mm, holds approx. 6,3 kg, neodymium, N48, nickel-plated

	1 pc.	4,12 EUR ea.*
from	3 pcs.	3,61 EUR ea.*
from	10 pcs.	3,16 EUR ea.*
from	20 pcs.	2,93 EUR ea.*
from	40 pcs.	2,74 EUR ea.*
Ask for a rebate from 240 pcs.

Available: 54 741 pcs.

S-15-08-N

Disc magnet Ø 15 mm, height 8 mm, holds approx. 6,2 kg, neodymium, N42, nickel-plated

	1 pc.	2,77 EUR ea.*
from	3 pcs.	2,43 EUR ea.*
from	10 pcs.	2,12 EUR ea.*
from	20 pcs.	1,98 EUR ea.*
from	40 pcs.	1,84 EUR ea.*
Ask for a rebate from 350 pcs.

Available: 184 141 pcs.

S-04-25-N

Rod magnet Ø 4 mm, height 25 mm, holds approx. 670 g, neodymium, N42, nickel-plated

	5 pcs.	0,99 EUR ea.*
from	15 pcs.	0,86 EUR ea.*
from	40 pcs.	0,77 EUR ea.*
from	80 pcs.	0,71 EUR ea.*
Ask for a rebate from 600 pcs.

Available: 14 395 pcs.

S-08-05-N

Disc magnet Ø 8 mm, height 5 mm, holds approx. 2 kg, neodymium, N45, nickel-plated

	5 pcs.	0,74 EUR ea.*
from	15 pcs.	0,64 EUR ea.*
from	40 pcs.	0,56 EUR ea.*
from	80 pcs.	0,52 EUR ea.*
Ask for a rebate from 750 pcs.

Available: 201 450 pcs.

S-03-03-N

Disc magnet Ø 3 mm, height 3 mm, holds approx. 330 g, neodymium, N45, nickel-plated

	20 pcs.	0,29 EUR ea.*
from	60 pcs.	0,25 EUR ea.*
from	140 pcs.	0,22 EUR ea.*
from	360 pcs.	0,19 EUR ea.*
Ask for a rebate from 1 300 pcs.

Available: 448 980 pcs.

K-19-C

Sphere magnet Ø 19 mm, holds approx. 4,9 kg, neodymium, N38, chrome-plated

	5 pcs.	6,46 EUR ea.*
from	15 pcs.	5,87 EUR ea.*
from	40 pcs.	5,43 EUR ea.*
from	80 pcs.	5,17 EUR ea.*
Ask for a rebate from 450 pcs.

Available: 3 185 pcs.

Steel balls Ø 10 mm

not magnets!, ferromagnetic, nickel-plated
To combine with neodymium magnets

	10 pcs.	0,35 EUR ea.*
from	40 pcs.	0,30 EUR ea.*
from	80 pcs.	0,28 EUR ea.*
from	160 pcs.	0,26 EUR ea.*
Ask for a rebate from 2 500 pcs.

Available: 5 610 pcs.

Steel balls Ø 20 mm

not magnets!, ferromagnetic, nickel-plated
To combine with neodymium magnets

	10 pcs.	1,18 EUR ea.*
from	40 pcs.	0,99 EUR ea.*
from	80 pcs.	0,91 EUR ea.*
from	160 pcs.	0,84 EUR ea.*
Ask for a rebate from 550 pcs.

Available: 2 840 pcs.

Steel balls Ø 8 mm

not magnets!, ferromagnetic, nickel-plated
To combine with neodymium magnets

	10 pcs.	0,36 EUR ea.*
from	40 pcs.	0,30 EUR ea.*
from	80 pcs.	0,28 EUR ea.*
from	160 pcs.	0,26 EUR ea.*
Ask for a rebate from 1 500 pcs.

Available: 4 780 pcs.

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keywords

Engine ( 9 )
Induction ( 8 )
Academic ( 28 )
Electricity ( 27 )
Experiment ( 76 )
School ( 31 )

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