# What is the equation for light energy?

Carbon Dioxide + Water **------>** Sugar + Oxygen

*(Scientific Equation: CO2 + H2O ------> C(6)H(12)O(6) +
O2)*

**Key:** -----> means light energy

### Does higher energy light have longer or shorter wavelength than lower energy light?

A high energy light will have a shorter wavelength than a low energy light. If the wavelength goes down, then the frequency goes up. When calculating energy in the equation, E=hv, frequency (v) is the variable, not the wavelength. So in the equation, if you wanted a more energy (E), you would have the frequency be large. For the frequency to be big, then the wavelength has to be low.

### If the wavelength of light is shorter does it have more energy?

A high energy light will have a shorter wavelength than a low energy light. If the wavelength goes down, then the frequency goes up. When calculating energy in the equation, E=hv, frequency (v) is the variable, not the wavelength. So in the equation, if you wanted a more energy (E), you would have the frequency be large. For the frequency to be big, then the wavelength has to be low.