Specific Heat and Latent Heat
Motivation:
Many processes require raising or lowering the temperature
of some substance. We need to understand how much
energy that requires.
Objectives:
Determine the energy required to raise the temperature of an object by
Describing 1-D Motion
Motivation:
We will be analyzing moving objects all
semester. In this section, we are describing
how they move (not why). This is what we
call kinematics.
Objectives:
Learn definitions, both numerically and graphically, of displaceme
Newtons Laws of Motion
Motivation:
We have covered kinematics, so we now know how to
describe motion. We now need to understand why an
object moves in that particular way; that is, we want to
understand the dynamics of the problem.
Objectives:
Learn Newto
that the ball and earth exert on
within the system exert
there are no exte
11. (c) The net
conserved. There
+10 kg-m/s) equals the total mome
+10 kg-m/s).
12. (b) The collision between th
conserved.
to the total kinetic ener
7 (c) Since the net e
Waves
Motivation: Energy is frequently transferred through systems in the form of
a wave. We need to understand how to describe them.
Objectives:
Learn to distinguish between transverse and longitudinal
waves.
Learn the parameters describing a periodic wa
Vectors
Motivation:
Many physical quantities that we will be studying
are vectors. We need to know how to interpret and
use them.
Objectives:
Describe vector quantities from two complementary perspectives:
(1) magnitude and direction; (2) components
Learn
Vector Algebra
Motivation:
We must learn how to mathematically manipulate vectors,
since we will need to do this all semester.
Objectives:
Learn how to perform algebraic operations with vectors and scalars
Analyze word problems in 2D motion and convert th
Physics 102 Introductory Physics I Spring 2010
Monday 22 March
Administrative matters:
Read Chapter 9 Sections 9.1 9.4 in our text by Cutnell & Johnson
before next lecture
Homework 7 on WileyPLUS due Wednesday March 24 at 11:00 pm
Hour Exam 3 on Friday
Thermodynamic Cycles & Heat Engines
Motivation:
Understanding how heat engines convert heat to mechanical
work.
Objectives:
Learn what a heat engine is and how its efficiency is defined.
Analyze a simple heat engine and determine its efficiency.
Physics 1
anrrEn 16 1 WA VEs AND SOUND
ANSWERS T O FOCUS ON CONCEPTS QUESTIONS
1. (c) It is indeed the direction in which the disturbance occurs that distinguishes the two types
of waves.
2. (a) As one domino topples against the next one in line, it is moving