esserjohnson Ms. Esser and Mr. Johnson
Howell High School
Welcome to Ms. Esser and Mr. Johnson's Science 2 page.  Here you will find important information about class, as well as some helpful web sites.

Important dates:
Tuesday, January 16-- Midterm exam

Upcoming Agenda:
Study for test!


Chapter 12—Forces
 Know the parts of the equation F=mg and be able to use it to solve a problem
 Pressure—what happens to pressure when force is increased or decreased?
 Know the difference between forces-- gravitational, magnetic, electrical… (etc.)
 Define kinetic and potential energy.  How can you tell the difference?
 What is buoyancy?  How can you tell if something will sink or float?  What does that have to do with the displacement of water?
 What is the Law of Conservation of Energy?  How is energy changed?
 As you get farther away from the earth, what happens to your weight and mass?
 Define force, friction, pressure, Newton,  weight

Chapter 13—Simple Machines
 Define a simple machine and name all 6 types.
 What is the difference between a simple and a compound machine?
 Calculate mechanical advantage using the equations MA=R/E, MA=EA/RA, MA=ED/RD
 Calculate work using W=Fd
 What is effort force and resistance force?
 What is effort distance and resistance distance?
 What is effort arm and resistance arm?
 What are the 3 types of levers?
 What is efficiency, work input, and work output?
 Define mechanical advantage, gears, pulleys, levers, etc…

Chapter 14—Motion
 Define Newton’s 3 laws of motion and give an example of each.
 What is centripetal force and centripetal acceleration?  What is the difference?
 Define inertia, joule, speed, velocity
 Calculate speed using v=d/t
 Calculate force using F=ma
 What are action and reaction forces?  Give examples.
 What are balanced and unbalanced forces?  Give examples.
 Describe weightlessness and when it occurs.
 Calculate acceleration using a=vt
 Use a graph to calculate average speed

Chapter 18—Sound
 Calculate overtones and fundamental frequencies
 How does temperature affect the speed of sound waves?
 What are reverberations and what causes them?
 What is constructive and destructive interference?
 What are compressional and transverse waves?
 What is pitch?  What kind of strings on a guitar would produce high pitch?  Low pitch?
 What is diffraction?  Give an example.
 What is a wavelength and how do you measure it?
 What kind of sounds can break glass?
 Define frequency, intensity, Doppler effect, acoustics, harmony, quality, wave.

Chapter 19—Light
 What is the electromagnetic spectrum?  What are its parts?  What are their wavelengths and frequencies (relative to each other)?
 What is the photoelectric effect and what produces it?
 What kinds of rays produce tanning?
 What is interference and what kinds of patterns can it produce?
 What is reflection and refraction of light?
 What are the primary colors of light?  What is produced when they are mixed?
 What are filters?  What happens to the color of objects when viewed through a filter?
 What does a polarizing filter do to light?
 What are transparent, translucent, and opaque objects?
 Why does light separate into different colors when going through a prism?
 Define index of refraction, photocell, radiant energy, polarization, wave nature of light.

Chapter 16—Electricity
What are conductors and insulators?  Give examples.
What are the parts of a simple circuit?
Calculate resistance using R=V/I
What is the difference between series and parallel circuits?
Define circuit, resistance, and grounding.
What are wet cells and dry cells?
Useful links
Last updated  2008/09/28 08:11:33 PDTHits  229