A space where no particles of matter exist is called what?

A space where no particles of matter exist is called what?

• A. Vacuum
• B. Flow
• C. Hypothesis
• D. Melts

Answer: (A)

Vacuum describes a space that contains no particles of matter. An ideal vacuum has no atoms or molecules at all, though real ones are just extremely empty and have very low pressure. This concept explains why such spaces behave as if they’re empty of matter and why vacuums are used to minimize interactions with air in experiments. The other terms aren’t about emptiness: flow is the movement of matter, hypothesis is a proposed explanation, and melts is the process of a solid turning into a liquid.

Vacuum describes a space that contains no particles of matter. An ideal vacuum has no atoms or molecules at all, though real ones are just extremely empty and have very low pressure. This concept explains why such spaces behave as if they’re empty of matter and why vacuums are used to minimize interactions with air in experiments. The other terms aren’t about emptiness: flow is the movement of matter, hypothesis is a proposed explanation, and melts is the process of a solid turning into a liquid.