Which statement best describes a difference between electromagnetic waves and mechanical waves?

a. mechanical waves can transfer matter through empty space.

b. electromagnetic waves vibrate in two directions that are perpendicular to each other.

c. electromagnetic waves require empty space to transfer energy from one place to another.

d. mechanical waves transfer matter, not energy, from one place to another

Answer: (C

• Electromagnetic waves do not require any medium to travel whereas mechanical waves must have a medium to propagate.

• The energy of electromagnetic waves is quantized, but the energy of mechanical waves is continuous.

• The energy of the mechanical waves depends on the amplitude of the wave, but the energy of an electromagnetic wave depends only on the frequency.

• Electromagnetic waves display particle like behavior, but mechanical waves do not display such behavior.

Answer: im pretty sure its D