Physics 9702 · AS & A Level · Temperature scales

Temperature scales — practice question

(a(i))[1]

State the size and unit of absolute zero on the thermodynamic temperature scale.

(a(ii))[1]

Explain why a temperature reading from a laboratory liquid-in-glass thermometer is not a measurement of thermodynamic temperature.

(b(i))[2]

Explain how Fig. 2.2 shows that platinum is a suitable metal for use in a resistance thermometer.

(b(ii))[1]

Suggest a reason why a platinum resistance thermometer is not suitable for measuring a rapidly changing temperature.

(b(iii))[1]

Suggest a type of thermometer that is suitable for measuring a rapidly changing temperature.

(c)[1]

A negative temperature coefficient thermistor may be used as a type of resistance thermometer. State one way in which the variation with temperature of the resistance of a thermistor differs from that of a platinum wire.

(c(i))[2]

Explain how Fig. 2.2 shows that platinum is a suitable metal for use in a resistance thermometer.

(c(ii))[1]

Suggest a reason why a platinum resistance thermometer is not suitable for measuring a rapidly changing temperature.

(c(iii))[1]

Suggest a type of thermometer that is suitable for measuring a rapidly changing temperature.

(d)[1]

A negative temperature coefficient thermistor may be used as a type of resistance thermometer. State one way in which the variation with temperature of the resistance of a thermistor differs from that of a platinum wire.

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