Properties of the different states of matter
1 mark · EasyWhich statement best describes the movement of gas particles?
Show answer
Correct option: They move randomly at high speed in all directions.
Common mistakes: They vibrate around fixed positions in a regular pattern.; They slide past each other in a fixed volume.; They are tightly packed but move randomly only in one direction.
Show mark scheme and worked solution
Marking points
B1 · 1 mark · Chooses 'They move randomly at high speed in all directions.'
Worked solution
Gas particles move randomly at high speed in all directions.