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Transcript

Electromagnetic Train

1. First, 16 gauge copper wire is wrapped

around a pipe or highlighter pen with a

diameter of 1cm to make the coil and

the diameter of the copper coil is 1.3

cm.

2. Second, the train is made up of an AAA

battery and one N35 neodymium

magnet on each end of the battery. The

magnets need to be placed on the

battery with the poles facing opposite

directions.

3. The speed of the train in the coil is

observed and recorded.

4. The experiment is repeated with N45

neodymium magnet and N52

neodymium magnet.

From Ethan Lee

Jasper Ang

Lam Yi Phei

2A2

Run the 'train' !

wrapped copper wire around a pen

Observation

Procedures

'Electromagnetic Train'

Factor 1

(the strength of the magnetic field)

Manipulated variable:

the strength of magnet

Responding variable:

the speed of the train

Fixed variables:

the number of magnet used, the diameter of the copper wire used, the diameter of the coil used

Objective

To study the factors affecting

the speed of the

‘electromagnetic train’.

Factor 2

(the number of the magnet used)

Procedures

1. The experiment above is repeated with two,

three, four and five N52 neodymium magnets

on each end of the battery.

2. The speed of the train in the coil is observed

and recorded.

Factors

Manipulated variable:

the number of magnet used

Responding variable:

the speed of the train

Fixed variables:

the strength of magnet used, the diameter of the copper wire used, the diameter of the coil used

Observation

  • the strength of the magnetic field
  • the number of the magnet used
  • the diameter of the copper wire
  • the diameter of the copper coil

Conclusion

Factor 3

(the diameter of the copper wire used)

Procedure

  • stronger strength of the magnetic field,
  • more number of the magnet used,
  • big diameter of the copper wire used,
  • the small diameter of the coil.

1. The experiment above is repeated with using

20 and 22 gauge copper wire.

2. The speed of the train in the coil is observed

and recorded.

Manipulated variable:

the diameter of the copper wire used

Responding variable:

the speed of the train

Fixed variables:

the strength of magnet, the number of magnet used, the diameter of the coil used

Observation

Background of the project

Factor 4

(the diameter of the coil used)

Procedures

1. The experiment above is repeated with using a

16 gauge copper wire with a diameter of 1.6 cm

and 2.1 cm.

2. The speed of the train in the coil is observed a

Manipulated variable:

the diameter of the coil used

Responding variable:

the speed of the train

Fixed variables:

the strength of magnet, the number of magnet used, the diameter of the copper wire used

Observation

Neodymium magnets are very popular. We wanted to carry out an activity to use the magnet. It is to build a simple electromagnetic train using magnet, battery and copper wire. The reality is: it was not as easy as we expected because the type of Neodymium magnets we used and the ones in the video are probably different. The diameter of the copper coil also influences the speed of the train. In other words, this experiment is not an easy task to accomplish because it requires a suitable type of Neodymium magnet and diameter of copper coil to make the train move smoothly.

we decided to study the factors that affect the speed of the ‘train’

Hypothesis

  • When the strength of the magnetic field increases, the speed of the train increases.
  • When the number of the magnet used increases, the speed of the train increases.
  • When the diameter of the copper wire used increases, the speed of the train increases.
  • When the diameter of the coil used decreases, the speed of the train increases.

Materials

• Copper Wire (16, 20, 22 gauge)

• AAA battery

• Neodymium magnets

(N35, N45 and N52)

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