Jasper made a list of the properties of electromagnetic waves. Identify the mistake in the list.

1. Are made up of an electric field and a magnetic field

2. Are longitudinal waves

3. Can travel through space

4. All travel at the same speed in a vacuum

A. Line 1 has a mistake

B. Line 2 has a mistake

C. Line 3 has a mistake

D. Line 4 has a mistake

B. Line 2 has a mistake

Explanation:

1. All electromagnetic waves are made of both electric and magnetic fields (hence the name electromagnetic).

2. All electromagnetic waves are transverse, and not longitudinal.

3. All electromagnetic waves can travel through space because they do not need particles to travel (like sound waves).

4. Electromagnetic waves all travel at the speed of light (299 792 458 m/s).