II. My Thoughts

Tell if the statements below are true. If not correct them.

1. Electromagnetic waves can travel through a medium but not in a vacuum.

2.A wave is a disturbance that transfers energy.

3.Most EM waves are invisible and undetectable.

4.Accelerating electrons produce magnetic field.

5.Electromagnetic waves are combination of magnetic and electric fields

6.Electromagnetic waves are arranged according to increasing frequency and decreasing wavelength.

7.Among the EM waves, the gamma rays have photons of high energies while microwaves have photons with the

lowest energies.

8.The wave speed of the different types of electromagnetic waves (EM)is the same as the speed of light C= 3 x 108 m/s.

9. Accelerating protons produce electromagnetic waves.

10. The wavelength of radio waves can be compared to the size of a football field while the wavelengths of gamma rays

are as small as the nuclei of an atom.​