The properties of an electromagnetic wave include:
- Travels at the speed of light - True, electromagnetic waves travel at the speed of light in a vacuum.
- Made of magnetic fields - True, electromagnetic waves consist of oscillating electric and magnetic fields.
- Made of electrical fields - True, electromagnetic waves consist of oscillating electric and magnetic fields.
- Radiates from a source - True, electromagnetic waves are produced by accelerating charges and radiate from a source.
The statement "carries energy only through matter" is false. Electromagnetic waves can carry energy through a vacuum (empty space) as well as through matter.
So the correct properties to check are:
- Travels at the speed of light
- Made of magnetic fields
- Made of electrical fields
- Radiates from a source
1 answer