Fly Wheeld284f45nftegze.cloudfront.net/sigity/Fly Wheel - P.pdfFlywheel is a simple activity that helps us to understand that: White light is made up of seven colors - violet, indigo,

th thComponents of White light (level 5 to 10 )

Flywheel is a simple activity that helps us to understand that:

White light is made up of seven colors - violet, indigo, blue, green, yellow, orange and red (VIBGYOR)

We see a combination of these colors as white light due to the phenomenon of Persistence of Vision

Take Care while using the poker to make holes on the film-can. Also, avoid any skin contact with glue.

Content:

Key learning:

Safety:

Activity Procedure:

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Fly Wheel Fly Wheel

Flywheel Photo

film can

Spoke nuts

BeadBicycle spoke

1

Rubber stopper

Fit photo film can lid

between two nuts to a spoke.

insert spoke loosely in the

can.

Tie one end of a threadto the spoke as shown.Pass the other end throughbottom hole of the can and tie it to a bead.

2

Glue a rainbowwheel to the lid

Wind the threadon the spoke and pull the bead down

3

on taking the bead up the flywheel rewinds

automatically

4

Side view of the motion

5

A black object absorbs all colors and a white object reflects back all light. And hence a black and white object appears so. Our [1]

eye retains an image for approximately 1/25th of a second on the retina . Therefore, when the flywheel is rotated, all the colors

appear to get intermixed to be seen as white light.

Will it affect if the order of colors marked on the flywheel is changed?

[2]Animation is the rapid display of a sequence of images to create an illusion of movement . This illusion is also due to persistence [3]

of vision. Usually images move at 24, 25 and 30 frames per second .

You can also use a thick paper or plastic cup instead of the film can.

[1] - http://en.wikipedia.org/wiki/Persistence_of_vision [2] [3] - http://en.wikipedia.org/wiki/Animation

Design procedure of Flywheel: http://www.arvindguptatoys.com/toys/flywheel.html

Summary:

Think :

Relate:

Alternatives:

References:

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