Investigating the brightness of the light shining on the light-dependent resistorThe purpose of my investigation is to investigate how the brightness (intensity) of the light shining on the LDR (resistor light-dependent) ) affects the resistance. We can change the intensity using different methods. One method is to increase the voltage by connecting the power supply to a higher voltage. But this method can be difficult as you may not be able to know how high the voltage is, it may be harder to have access to higher voltage, as it is dangerous. Another way is to change the brightness by adjusting the power. Also the distance between the bulb and the LDR there is another method, if the distance is more, less bright it would be. If the distance is smaller/smaller, the denser it will be. We could also use different bulbs and ballasts, with higher voltage and energy, the higher the voltage, the brighter the bulb. But this may be difficult, as we may not have many different ballasts or bulbs. I could also put different filter densities between the bulb and the LDR. The last method I could use is to use different sizes of the openings used in the experiment. If the opening is more open, more light will pass through, but if the opening is more closed, light will hardly pass through. I will use the distance editing method, because this is the easiest method to do. The results of this experiment method would also be more accurate as it is easy to record the results through this method. We will send the power via LDR; a voltmeter/ammeter will measure the current. The "Amp" (A) unit of measurement is not sensitive enough to measure lower currents; therefore we measured the current in "Milliampere" (MA). From my preliminary study, I have discovered the appropriate distances that I will use in my final experiment. Since there will be 5 readings, there will be 5 different distances.