General Science 101. Physics, Chemistry, and the Human Experience HHS 2210. Syllabus. Professor: Dr. Jason T. Haraldsen Office: HHS 2104 Office Phone: 540-568-4173 Office Hours: Tuesdays/Thursdays 9 : 3 0am – 10: 3 0pm and Tuesdays 3 :30pm – 4: 30pm
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General Science 101
Physics, Chemistry, and the Human Experience
Professor: Dr. Jason T. Haraldsen
Office Hours:Tuesdays/Thursdays 9:30am – 10:30pm and Tuesdays 3:30pm – 4:30pm
Wednesdays 1:00pm-2:00pm or by appointment
E-mail: [email protected]
Text: Physics and Technology for Future President, Richard Muller, ISBN 0691135045
I will also be at the Science and Math Learning Center
Attendanceis not mandatory except for exams. While attendance is otherwise not required, it is highly recommended as there is a strong correlation between doing well on the exams and regularly attending class.
Keep in mind that all information discussed in lecture is fair game for the exams. All material in the textbook is fair game for the exams regardless of whether or not it is discussed in lecture.
James Madison University has many computer labs, learn them and use them. Remember Murphy’s Law: “Anything that can go wrong, will!” Your computer is fallible and can easily turn on you. Therefore, know where the computer labs are located, because your computer is not reliable and you may need them sometime. Also, backup your files on a flash drive, CD, 3.5” Floppy, tape drive, or stone tablet (not recommended!).
Arrive on time! If you must be late, come in quietly! Don’t chat/text or disturb the class in any ways!
Schedule of Classes and Tentative Topics
This is a general guide. Topics may shift due to time and availability.
Dates Content and Events
14-Jan Introduction, Scientific Method, Ch. 1
16-JanCh. 1: Energy and Power and the Physics of Explosions
21-JanCh. 2: Atoms and Heat
23-JanCh. 3: Gravity, Force, and Space
28-Jan Ch. 3: Gravity, Force, and Space
30-Jan Review Chapters 1, 2, and 3 – Research Hypothesis Due
4-Feb Exam #1
6-FebCh. 4: Nuclei and Radioactivity
11-Feb Assessment Day (No Class)
13-Feb Ch. 5: Chain Reactions, Nuclear Reactors, and Atomic Bombs
18-FebCh. 5: Chain Reactions, Nuclear Reactors, and Atomic Bombs
20-FebCh. 6: Electricity and Magnetism
25-FebCh. 6: Electricity and Magnetism
27-Feb Review Chapters 4, 5, and 6
4-Mar Exam #2
6-Mar Planetarium (Miller Hall – Dr. Virani)
11-Mar Spring Break
18-MarCh. 7: Waves including UFOs, Earthquakes, and Music
20-MarCh. 8: Light – Preliminary Research Data Due
25-MarCh. 9: Invisible Light
27-MarReview Chapters 7, 8, 9
1-Apr Exam #3
3-Apr Ch. 10: Climate Change
8-Apr Ch. 11: Quantum Physics
10-Apr Ch. 11: Quantum Physics
15-Apr Ch. 12: Relativity
17-Apr Ch. 12: Relativity – Research Projects Due
22-AprCh. 12: Relativity
24-AprCh. 13: The Universe
29-Apr Ch. 13: The Universe
1-MayReview Chapters 10, 11, 12, and 13
8-MayFinal Exam - Cumulative with an emphasis on Ch. 10, 11, 12, and 13 (8:00 am)
Ask a question – Observe the world and question those observations.
Do some background research – Investigate what could occur.
Construct a hypothesis – Determine a testable explanation for the question you pose.
Test your hypothesis – Construct an experiment that will test your hypothesis.
Analyze your data – Examine your results.
Report your Results – Write a report detailing the what, why, and how your experiment worked. Answer what you conclusions are and how they relate to your hypothesis. It is okay to be wrong!
x is multiplied by the factor m.
The terms mx and b are added together.
x is multiplied by the factor 1/a or x is divided by the factor a. The terms x/a and c are added together.
Example: You put $10,000 in a CD for one year. The APY is 3.05%. How much interest does the bank pay you at the end of the year?
The bank pays you $305 in interest.
The general rule is to multiply by
where the (+) is used if the quantity is increasing and (–) is used if the quantity is decreasing.
A is proportional to B. The value of A is directly dependent on the value of B.
A is proportional to 1/B. The value of A is inversely dependent on the value of B.
Example: The area of a circle is
The area is proportional to the radius squared.
The proportionality constant is .
This is a shorthand way of writing very large and/or very small numbers.
Example: The radius of the sun is 700,000 km.
Write as 7.0105 km.
When properly written this number will be between 1.0 and 10.0
Example: The radius of a hydrogen atom is 0.0000000000529 m. This is more easily written as 5.2910-11 m.
= 1147.82985 (Not correct!)
= 1147.8 (Round to the proper decimal)
= 109.0766 m (Not correct!)
= 109 m (The smallest number of sig figs!)
= 158.863 m (Not correct!)
= 160 m (Correct…sort of!) -> 1.6 x 102 m (correct!)
yotta (Y): x 1024
zetta (Z): x 1021
exa (E): x 1018
peta (P): x 1015
tera (T): x 1012
giga (G): x 109
mega (M): x 106
kilo (k): x 103
centi (c): x 10-2
milli (m): x 10-3
micro (m): x 10-6
nano (n): x 10-9
pico (p): x 10-12
femto (f): x 10-15
atto (a): x 10-18
zepto (z): x 10-21
yocto (y): x 10-24
Importance of Units
Dimensions are basic types of quantities that can be measured or computed. Examples are length, time, mass, electric current, and temperature.
A unit is a standard amount of a dimensional quantity. There is a need for a system of units. SI units will be used throughout this class.
The quantities in this column are based on an agreed upon standard.
A derived unit is composed of combinations of base units.
Example: The SI unit of energy is the joule.
1 joule = 1 kg m2/sec2
Units can be freely converted from one to another. Examples:
12 inches = 1 foot
1 inch = 2.54 cm
Approximations are sometimes need in everyday life.
It depends on how accurate you need to know something.
Bowling Ball vs Beach Ball
An asteroid is moving at approximately 25 km/s. Express in m/s and mile/hr.
How many m in km?
1000 m = 1 km
Therefore, 25 km/s *(1000m/1km) =
25000 m/s or 2.5 x 104 m/s
How many miles in km?
0.621371 miles = 1 km
How many seconds in hour?
3600 s = 1 hr
25 km/s * (0.62371 miles/ 1 km) * (3600 s/1hr) = 56133 mph = 5.6 x 104 mph