Multiple choice

One important difference between light and sound is that the former _____.

  1. is a wave motion

  2. can be reflected

  3. can bend round corners

  4. can travel through space

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Light is an electromagnetic wave that can travel through vacuum (empty space), which is why we receive sunlight. Sound is a mechanical wave that requires a material medium (solid, liquid, or gas) to propagate - it cannot travel through space. Both can be reflected and can bend around corners (diffraction), so the key distinction is the ability to travel through vacuum.

Keep practicing — related questions