This physic modelling is uses both Faraday’s Electromagnetic Lab and Faraday’s Law modelling, whereby it also relates other topics such as magnetic field and magnets. This modelling will explain what happens when the magnet moves through the coil at different speeds and how this affects the brightness of the bulb and the magnitude & sign of the voltage. It also explains the difference between moving the magnet through the coil from the right side versus the left side and the difference between moving magnet through the big coil versus the smaller coil. Thus, the variables that we control in this modelling are speed and the poles of magnet when moving through the coil and the size of coil which different in size.
The students will use the modelling to learn the goals through an inquiry approach. Students will be able to identify equipment and conditions that produce induction, compare and contrast how both a light bulb and voltmeter can be used to show characteristics of the induced current, predict how the current will change when the conditions are varied, explain practical applications of Faraday’s Law and explain what the cause of the induction is.
The advantage of this modelling compared to the traditional experiment is time and cost-saving . As traditional experiment will require equipment such as magnet, variety of coils, power supply, overhead galvanometer, little demo light bulb, generator model. Moreover, these equipment must be in good condition in order to get consistent and accurate result. On the contrary, this modelling will show accurate and consistent result at all time. This modelling also allow every student to participate for this experiment and provoke their understanding more easily as they can see the result significantly and are able to compare their result with one another for analysis of this experiment.
Link- http://phet.colorado.edu/en/simulation/faradays-law
Link- http://phet.colorado.edu/en/simulation/faradays-law
No comments:
Post a Comment