Q Does physics as a science aims to describe matter?
Does chemistry also aim to study matter?
What about biology?
Q What part of matter is the target or is being studied in
a) Physics?
b) Chemistry?
c) Biology?
Summary:
Physics deals with matter and energy. It describes matter whether matter is at rest or in motion with or without kinetic energy.
Chemistry studies matter, its composition and reaction with other matter.
Biology also studies matter but In the living aspect of it.
Q What are the different branches of physics? What are the keywords or physical quantities in each branch that are used in describing matter?
L Reaction to the Answers
Summary
Branches of Physics Key Words (Quantity Symbols)
Mechanics ……………… F, m, v, a & E
Heat & Thermodynamics.. p, V, T & m
Electro-magnetism …… .. q, F, E, V B and I
Light and Sound ……….. f, c, A & wave properties
Modern Physics ……… . Classical Physics(old concepts)
Modern Physics (latest concepts)
L Introduce & describes the general coverage of Physics 31 course.
L Explains the comparison between scalars and vectors.
Q In your own words, what are the two general kinds of physical quantities in describing matter?
Q Differentiate distance from displacement.
L Explains the physical quantities ( L, M & T ) in Mechanics.
Q What are the units of each of the fundamental quantities in Mechanics? Is velocity a derived quantity?
What is a derived quantity?
What is a derived unit?
T Measure the length of the teacher’s table top using a meter stick or a ruler.
Q What is your accurate reading in a) meters? b) feet?
How much time did it took you to do the measurement in
a) min? b) sec?
What is the equivalent of 2.00 km to a) m? b) cm? c) m?
T Look together with the students and discuss the sample problems in (1-1) and (1-2) in the textbook
L Reacts to the assigned tasks.
L Presents an example of the failure of “the Unmanned Mars Explorer”
To be continued.
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