Measuring heat energy
3 marks · EasyThe diagram below shows particles in one of the three states of matter.
Identify the state of matter shown.
Describe the arrangement of the particles in this state.
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
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(a) Solid
(b) Particles are tightly packed in a regular, fixed arrangement and vibrate around fixed positions. · must show tightly packed, regular pattern, fixed positions/vibration
Must show: close together, regular/fixed pattern/vibrate or limited movement
Common mistakes: Incorrectly identifying state as liquid when it's solid.
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Marking points
B1 (a) · 1 mark · Identifies state as 'solid'.
B2 (b) · 1 mark · States that particles are tightly packed/very close together.
B3 (b) · 1 mark · States that particles are in a regular/fixed pattern or vibrate around fixed positions.
Worked solution
a) The diagram shows a solid.
b) The particles are tightly packed in a regular, fixed arrangement and vibrate about their fixed positions.