Question

distinguishing mechanical and electromagnetic waves
which statement correctly distinguishes between mechanical and electromagnetic waves?
electromagnetic waves carry energy through matter; mechanical waves carry energy through space.
mechanical waves carry energy through matter; electromagnetic waves carry energy through space.
electromagnetic waves carry energy through particles that move up and down; mechanical waves carry energy through particles that move side to side.
mechanical waves carry energy through particles that move up and down; electromagnetic waves carry energy through particles that move side to side.

Explanation:

• Mechanical waves need a medium (matter) to travel as they transfer energy through particle - to - particle interaction.
• Electromagnetic waves do not need a medium (can travel through space) as they are composed of oscillating electric and magnetic fields.
• The direction of particle motion (up - down or side - to - side) is related to wave type (transverse or longitudinal) but not the distinction between mechanical and electromagnetic.

Answer:

Mechanical waves carry energy through matter; electromagnetic waves carry energy through space.