Multiple choice

In a solid, the particles are ……………. together. The forces between particles are ………………. so that the particles cannot move freely but can only vibrate.

  1. closely packed, weak

  2. loosely packed, strong

  3. closely packed, strong

  4. loosely packed, weak

  5. unpacked, strong
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In a solid, the particles (ions, atoms or molecules) are closely packed together. The forces between particles are strong so that the particles cannot move freely but can only vibrate. As a result, a solid has a stable, definite shape, and a definite volume. Solids can only change their shape by force as when broken or cut.

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