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Q1-3. The diagram show particles in 3 states of matter:

3 states of matter particle diagram
Author:yelod - wikimedia commons - edited

 1. Which of these diagrams shows the particles in a gas and a liquid?

  • A. 'X' shows a gas, 'Y' shows a liquid.
  • B. 'Y' shows a gas, 'X' shows a liquid.
  • C. 'Z' shows a gas, 'X' shows a liquid.
  • D. 'X' shows a gas, 'Z' shows a liquid.

2. Which of these diagrams shows the particles in their hottest and coldest state?

 Hottest Coldest
A
 Y Z
B
 X Y
C
 Y X
D
 X Z

3. In which of these diagrams are the particles held in place, vibrating about a fixed point?

  • A. Y only
  • B. Z only
  • C. X and Y
  • D. Y and Z

Q 4-7. These questions are about changes in state:

  
When wax turns from a solid to a liquid, it is .
A gas turning back into a liquid is .
When frozen CO2 (dry ice) turns directly to a gas it is .
When liquid wax turns back into a solid is is .

8. Forces can act between the particles in matter. Which one of these answers gives the 3 states of matter where the force between particles is listed strongest to weakest?

  • A. gas, liquid, solid
  • B. liquid, gas, solid
  • C. solid, liquid, gas
  • D. solid, gas, liquid
9+10. When a steel pipe is heated the particles move faster, increasing the spacing between them. metal pipe

9. This effect is called..

  • A. expansion.
  • B. evaporation.
  • C. extension.
  • D. elasticity.
10. If we keep heating the steel pipe until it all melts, the total mass of the steel will have .