Page 530 - SUBSEC October 2017_Neat

UNIT 1
MODULE 3: THERMAL AND MECHANICAL PROPERTIES OF MATTER

GENERAL OBJECTIVES

On completion of this Module, students should:

1. understand the principles involved in the design and use of thermometers;

2. be aware of the thermal properties of materials and their practical importance in everyday
life;

3. understand the various modes of heat transfer;

4. be familiar with the kinetic theory of gases and the equation of state of an ideal gas;

5. display a working knowledge of the first law of thermodynamics; and,

6. be aware of the mechanical properties of materials and their practical importance in everyday
life.

SPECIFIC OBJECTIVES EXPLANATORY NOTES SUGGESTED PRACTICAL
ACTIVITIES

1. Design and Use of Thermometers

Students should be able to:

1.1. discuss how a physical Include both linear and Calibrate a thermometer
property may be used to non-linear variation with using a ruler using the
measure temperature; temperature. following points: steam
point, ice point and water at
Use equation = room temperature.
− 0
× 100
100 − 0 Plot a calibration graph
for temperature values on (resistance vs temperature
the Empirical scale.
for a thermistor with a
negative temperature
Explanation of the reason
coefficient.
why different
thermometers when using
the Empirical centigrade
scale do not agree.

1.2. describe the physical Liquid-in-glass, resistance Show students different
features of specific (including thermistor), types of thermometers.
thermometers; thermocouple and constant
volume gas thermometer.

CXC A16/U2/17 30