a bolt of lightning flashes across the sky. a few seconds later, you hear a clap of thunder. why do you see…

a bolt of lightning flashes across the sky. a few seconds later, you hear a clap of thunder. why do you see the lightning before you hear the thunder? the sound waves from thunder are mechanical waves. they transfer energy through the vibration of particles of matter. the light waves from lightning are electromagnetic waves. they transfer energy through the vibration of electric and magnetic fields. unlike mechanical waves, electromagnetic waves do not need to travel through matter. they can even travel through the vacuum of outer space! they travel at the speed of light, which is much faster than the speed of mechanical waves. compare and contrast mechanical and electromagnetic waves. transfer energy travel at the speed of light can travel through matter can travel through outer space

a bolt of lightning flashes across the sky. a few seconds later, you hear a clap of thunder. why do you see the lightning before you hear the thunder? the sound waves from thunder are mechanical waves. they transfer energy through the vibration of particles of matter. the light waves from lightning are electromagnetic waves. they transfer energy through the vibration of electric and magnetic fields. unlike mechanical waves, electromagnetic waves do not need to travel through matter. they can even travel through the vacuum of outer space! they travel at the speed of light, which is much faster than the speed of mechanical waves. compare and contrast mechanical and electromagnetic waves. transfer energy travel at the speed of light can travel through matter can travel through outer space

Answer

Brief Explanations:

  • Transfer energy: Both mechanical and electromagnetic waves transfer energy. Mechanical waves do so through particle vibration, and electromagnetic waves through electric and magnetic field vibration.
  • Travel at the speed of light: Only electromagnetic waves travel at the speed of light.
  • Can travel through matter: Both can travel through matter. Mechanical waves need matter (as they are mechanical), and electromagnetic waves can also travel through matter (though they don't need to).
  • Can travel through outer space: Only electromagnetic waves can travel through outer space (a vacuum), as mechanical waves need a medium (matter) to travel.

Answer:

Mechanical waves Electromagnetic waves
Transfer energy $\square$ $\square$
Travel at the speed of light $\square$
Can travel through matter $\square$ $\square$
Can travel through outer space $\square$