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International Baccalaureate: Physics
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- Marked by Teachers essays 2
Due to this, increasing distance ultimately decreases the illuminance (how much light from a source hits a specific object) and thus, the light intensity. VARIABLES The independent variable (the variable being changed): The independent variable is going to be the distance between the light sensor and the light source (cm) with measurements varying from 10cm-100cm and increasing at 10cm increments. We will do this in order to see the effects varying distance has on light intensity. The variable will be altered by increasing the distance between the two objects by 10cm (interval length) for each set of trials. We will measure and change this gap by using a metre ruler to determine the exact distance and then we will place the light source at one end and the sensor at the determined mark on the ruler.
- Word count: 2990