answer all questions.\n1. what is the electromagnetic spectrum?\n2. draw a wave and label its parts.\n3…

Brief Explanations:

1. The electromagnetic spectrum is the range of all electromagnetic radiation types including radio - waves, microwaves, infrared, visible light, ultraviolet, X - rays, and gamma rays.
2. A wave has parts such as crest (highest point), trough (lowest point), wavelength (distance between two consecutive crests or troughs), and amplitude (height from the mid - line to a crest or trough).
3. Wavelength ($\lambda$) and frequency ($f$) are inversely related as $c = f\lambda$ (where $c$ is the speed of light in a vacuum), meaning as wavelength increases, frequency decreases and vice - versa.
4. Energy ($E$) and frequency ($f$) are directly proportional as $E=hf$ (where $h$ is Planck's constant), so higher frequency means higher energy.
5. Energy ($E$) and wavelength ($\lambda$) are inversely proportional. Since $E = hf$ and $c = f\lambda$ (so $f=\frac{c}{\lambda}$), then $E=\frac{hc}{\lambda}$.

Answer:

1. The electromagnetic spectrum is the range of all electromagnetic radiation types including radio - waves, microwaves, infrared, visible light, ultraviolet, X - rays, and gamma rays.
2. A wave has parts such as crest, trough, wavelength, and amplitude.
3. Inverse relationship.
4. Directly proportional.
5. Inversely proportional.