In Investigation One, you will learn about several properties of light. In particular, when light interacts with an object, it can be absorbed, transmitted, reflected, refracted, diffracted, or scattered. During this Investigation, you will:
- Observe transmission and absorption of light using a flashlight and four beakers filled with 50ml of water each gradually increasing in color concentration.
- Use a spectrophotometer to measure the absorbance and transmittance of light in several solutions of increasing color concentration.
- Determine the color concentration of an unknown solution using data collected from previous solution samples.
In Investigation Two, you will explore the Law of Reflection as light interacts with a medium or object. During this Investigation, you will:
- Use a beam of light, protractor, and mirror to measure the angle of incidence and angle of reflection.
- Apply the Law of Reflection to manipulate images in a mirror.
In Investigation Three, you will explore the relationship between light and the color of transparent substances. During this Investigation, you will:
- Use a spectrophotometer to determine the absorbance spectra from 400nm to 700nm using three colored water solutions in red, green, and blue.
- Test the absorbance and reflection of opaque objects using red, green, and blue filters.
In Investigation Four, you will explore refraction, another property of light. During this Investigation, you will:
- Explore refraction through a solid, water, and oil and measured the angles of incidence and angles of refraction.
- Calculate the Index of Refraction by using the following formula: