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2.1 Kinetic particle model of matter

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Question 171

A student heats a solid metal block using an electric heater, resulting in an increase in the temperature of the block.

Which row in the table correctly describes the change in internal energy of the metal block and the correct explanation?

Change in internal energyExplanation
AIncreaseThe average random kinetic energy of the particles increases.
BIncreaseThe individual particles expand and increase in size.
CDecreaseThe potential energy of the particles increases.
DDecreaseThe average random kinetic energy of the particles decreases.
A

Row A

B

Row B

C

Row C

D

Row D

Markscheme

2.1 Kinetic particle model of matter Questions

  1. IGCSE
  2. /Physics
  3. /2.1 Kinetic particle model of matter

321 exam-style questions on CIE IGCSE Physics 2.1 Kinetic particle model of matter, covering 2.1.1 States of matter and changes of state, 2.1.2a Particle structure and motion in solids, liquids and gases, 2.1.2b Gas pressure and particle collisions, 2.1.2c Brownian motion, 2.1.3a The absolute scale of temperature, and 2.1.3b Pressure, volume and temperature of a gas. Each one has a worked solution and a mark scheme showing where the marks go.

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