CAIE A-Level Physics A2 16.1.1 Internal Energy Is Determined By the State of the System and That It Can Be Topic Practice

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Question 1

[Maximum number: 5]

Question (a)

(a)

State what is meant by the internal energy of a system.

[ 2 ]

Question (b)

(b)

With reference to molecular kinetic and potential energies, describe and explain how the internal energy of the system changes when:

[ 3 ]

Question (i)

(i)

a wire is stretched within its elastic limit at constant temperature.

[ 3 ]
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