Science Teaching Ideas And Aids
No Battery Shake Flashlight As A Show And Tell Item
No Battery Shake Flashlight is an attention-grabbing show and tell item and an effective science teaching aid.
Science Teaching Ideas
The following is just a sample of ideas for the teaching of science. Use it as a brainstorming tool.
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Begin by asking the class if a flashlight can function without any batteries. Then show and tell the class that the no battery shake flashlight can generate its own power by merely shaking it. Ask the class for alternative methods of generating electricity.
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Explain the Principle of Electromagnetic Induction and the Law of Conservation of Energy and how they are applied to the batteryless shake flashlight.
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Explain how the shake flashlight converts mechanical energy into electrical energy.
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Highlight the environmental concerns over the disposal of expired batteries.
Learning Activity Using A Show And Tell Item -
No Battery Shake Flashlight as a Learning Tool
Besides showing and telling the class about the shake flashlight, try to explain the Principle of Electromagnetic Induction by carrying out a simple experiment.
Start by making a coil by wrapping a paper cylinder with
copper wire. Then connect the coil to a galvanometer. Move a strong magnet back and
forth inside the cylinder rapidly.
The galvanometer needle moves in tandem with the magnet indicating that a
current is induced in the coil. Note what type of current is produced.
Note what happens when the magnet stops (the needle returns to
zero indicating the absence of any current).
This shows that a changing magnetic field is required for electromagnetic
induction to take place. Tell this to the class.
Click Here to read more about no battery shake flashlight and Faraday's Principle of Induction that is applied in generating its electrical power.
More about Faraday's Principle of Induction
Learn more about the workings of a no-battery shake flashlight using Faraday's principle of induction, get a copy of this informative Physics Guide. It is a 20-page comprehensive tutorial on the science and engineering of the NightStar shake flashlight. An ideal information manual for those fascinated by the operation of a NightStar no-battery shake flashlight. Contains numerous equations and diagrams to help explain the nature of magnetism, electronics and optics. Written for grades 8 and up.
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No Battery Flashlight - Just Shake And Shine!