Choose 2 types of light waves from the electromagnetic spectrum and compare them,

Explanation:

infrared  waves  and ultra violet (UV) waves

infrared is a light that we can feel as heat.  it's just below the red spectrum that we can see with our eyes.  We tend to think of infrared as a  red light but it's really not in our red spectrum of vision, it's below that, or the wave lengths are longer than red light is .

Ultra violet (UV) is much higher energy.  we don't "feel" that but it's much more powerful than infrared. it's above the blue/ purple spectrum that our eyes can see or the wave lengths is shorter than what we can see in the highest visible spectrum that we can see.  Because the wave lengths are shorter there is much more energy in the wave.  It's destructive to us, even, and why we put on UV block,  sun screen.   :P  

answer: decibel

explanation:

grav forces affect all objects magnetic forces affect magnetic objects and electric currents