Question

9.
Which of the following best describes the term VACUUM?
A. A vibration moving energy from place to place.
B. The part of a wave that is pushed together.
C. Empty Space
D. The material through which a mechanical wave can travel.

Answer 1

Answer:

C. Empty Space

Explanation:

A vacuum is an empty space.

• In a vacuum, there is no form of matter present.
• A vibration moving energy from place to place is a wave
• The part of a wave pushed together is called a compression
• The material through which a mechanical wave can travel is a medium

So, a vacuum is simply an empty space devoid of matter.