Electric Vehicle

Document Sample
Electric Vehicle Powered By Docstoc
					Electric Vehicle
        Alex Azima
Lansing Community College
       Summary of Rules
• Only Electric Source of Propulsion (No
  More Than Four 1.5 V Batteries OR One
  4.8 V Battery Pack)
• Other Energy Sources May Be Used for
  Functions Other Than Propulsion
• Travel Distance 5-10 m (In Intervals of
  0.5 m Regional, 0.1 m State, 0.01 m
• Travel Time Less Than 45 Seconds
  (Teams Must Predict Time)

• All Vehicle Parts Must Move with Vehicle
 Summary of Rules Continued
• Wheel Base 40 +/- 3 cm
• Track Width Less Than 25 cm
• No Electronic Sighting/Alignment Devices
• Stationary, Pointed Object to Mark Front
  of Vehicle Within 1 cm of Track Surface
• Breaking System or Other Parts May Not
  Contact the Floor (Except for Wheels)
• Vehicle Must Be Started with Pencil, Pen,
  or Wooden Dowel (No Touching)
 Summary of Rules Continued

• Vehicle, Batteries, & Back-Up Batteries
  Will Be Impounded

• Tools, Data, & Calculating Devices,
  Including Computers, Will NOT Be

• 10 Minutes to Make Adjustments &
  Complete Two Runs
                 Inspection and Ope ration

__Approved eye protection w orn by students
__All sources of p owe r in an available locati on for
  inspection by event supervis      or
__Propuls ion ener gy supplie d only by electrical energy
__Vehicl e uses only 4 individ ual cells (Š1.5v ea ch) or
  singl e battery pack (Š4.8v)
__Wh eelbase = 40 ± 3 cm
__Vehicl es trac k widt h Š 25 cm
__Vehicl e ma rked with a fixed , non -moveable p oint at
  foremost point of vehicle
__Contest ant uses pen , pencil , or dow el to actuate sw itch
__Pen , pencil , or dowe l is no t part of and d oes not travel
  with vehicle
__Entire vehicle , includ ing ba tteries, trave l together
__Vehicl e’s br aki ng system and other parts do not contact
  track sur face
                     QuickTime™ and a
            TIFF (Uncompressed) decompre ssor
               are neede d to see this picture.

                    QuickTime™ and a
          TIFF (Uncompressed) decompre ssor
             are neede d to see this picture.

Distance Traveled 100 pts

Time Predicted                                    50 pts

“Finish Line “                                    40 pts

Center Line                                       10 pts

Target                   Center
Distance                 Line


    Distance          Finish
    Traveled          Line Score   Finish
 Kelvin     http://www.kelvin.com/

Electroni   http://www.allelectronics.com/

 Pitsco     http://www.pitsco.com/

Physics High School
Content Expectations
P1.1 Scientific Inquiry

P1.1A Gene rate ne w question s that can be
investigated in the laborator y or field .

P1.1B Evaluate th e uncertaint ies or validity of
scientific conclusion s usin g an understa ndin g of
sources of me asurement erro r, the chall enge s of
controllin g var iables, accurac y of dat a analysis, logic
of a rgument, logic of expe rim ental de sign , and/or the
dependence on und erly ing as sumptions.

P1.1C Conduct scientific inve stigations us ing
appropr iate tools and tech niques.

P1.1D Id entify pattern s in da ta and relate them to
theoretical model s.
P1.1E Describe a reas on for a given conclusion using
evidence from an investigati on.

P1.1f Predict w hat woul d ha ppen if the variables,
methods, or tim ing of an inve stigation w ere chang ed.

P1.1g Based on emp irical evi dence, exp lain and
critique the re asoni ng use d to dr aw a scientific
conclusion o r exp lanati on.

P1.1h Des ign an d conduct a systematic scientific
investigation t hat tests a hypothesis . Dr aw
conclusions f rom dat a pres ented in charts or tables.
Standard P2: Motion of Objects
P2.1 Positio n — Time
P2.1A Calcu late the ave rage speed of an object usin g
the chan ge of po sition and elapsed time.

P2.1B Represent the velocitie s for linea r and circul ar
motion using motio n d iag rams (arro w s on strobe
pictur es).

P2.1C Cr eate line graph s usi ng measure d values of
position and elapse d time.

P2.1D Des cribe and ana lyz e the motion that a
position -time g raph repres ents, given th e graph.

P2.1g Solve problems involvi ng ave rage speed and
constant accele ration in on e d imension.
P2.2 Velocit y — Time
P2.2A Distingui sh between the var iables of d istance,
displacement, speed, velocity , and accelerati on.

P2.2B Use the c hang e of spe ed an d elap sed time to
calculate the ave rage accele ration for linear motio n.

P2.2C Describe and a nalyze the motion that a
velocity -time graph repres ent s, given th e graph.

P2.2e Use th e area under a ve locity -time graph to
calculate the dist ance travele d and th e slope to
calculate the accele ration.
StandardP 3: Forces and Motion

P3.1 Basic Forces in Natu re
P3.1A Id entify the force(s) acting between objects in
“direct contact” o r at a dist ance.

P3.4 Forces and Acce leration
P3.4B Identify f orces acting on objects moving wit h
constant velocity (e.g ., cars on a high w ay) .

P3.4C Solve problems involvi ng force, m ass , and
acceleratio n in lin ear motio n (Newton’s secon d law).
P3.8x Electromagnetic Force
Magnetic and electric forces are two aspects of a
singl e electroma gnetic force. Moving electric charg es
produce magnetic f orces and moving ma gnets
produce electric forces ( e.g. , electric current in a

P3.8b Explain how the interaction of electric an d
magnetic forces is the basis for electric motors,
gene rators, an d the producti on of electrom agnetic
Standard P4: Forms of Energy & Energy
P4.1x Energy Transfer — Wo rk
Work i s the amount of ene rgy transfe rred duri ng an
interaction. In mech anical sys tems, w ork is the
amount of en ergy trans ferr ed as an object is moved
through a dist ance, W = F d, w here d is in th e same
direction as F. The tota l wo rk done on an object
depends on the net force acti ng on the object and th e
object’s displacement.

P4.1c Exp lain wh y w ork has a more precise scientific
meani ng th an the m eani ng of work in eve ryd ay
lang uage.

P4.1d Calcu late the amount of work done on an object
that is moved from one po sition to anoth er.
P4.2 Energy Transformat ion
P4.2A Account for an d repr esent ener gy tr ansfe r and
transfor mation in complex p rocesses (inte ractions).

P4.2B Name devices t hat tra ns form specific types of
energ y into oth er types (e.g. , a device that transf orms
electricity int o motion).

P4.2C Exp lain ho w ene rgy is conserved in common
systems (e. g., light inci d ent on a tr ansp arent mate rial,
light incid ent on a leaf, mec ha nical ener gy in a
collision) .

P4.2f Identify an d label the energy inputs,
transfor mations , and outputs us ing qu alitative or
quantitative repres entations in simple technol ogical
systems (e. g., toaste r, motor, hair dry er) to sh ow
energ y cons ervation.
P4.3 Kinetic and Potential E nergy

P4.3A Id entify the form of energy in giv en situation s
(e.g., movi ng objects, stretche d spri ngs, rocks on cliffs,
energ y in food).

P4.3B Describe the t ransf orm ation between potential
and kinetic en erg y in simple mechanic al systems (e.g. ,
pendulums, ro ller coasters , sk i lifts).

P4.3C Exp lain w hy all mech an ical systems requir e an
externa l en ergy source to ma intain thei r motion.
P4.10 Current Electricity — Circuits

P4.10C Given di agram s of m any diff erent pos sible
connections of e lectric circuit elements, id entify
complete circuits, open circuits,   and short circuits and
expla in the reas ons for the classification.

P4.10D Discrim inate between voltage, resistance , and
current as th ey ap ply to an electric circuit.
P4.10x Current Electricity — Ohm’s Law, Work , &

P4.10e Exp lain en ergy transf er in a circuit, usi ng an
electrical ch arge mo del.

P4.10f Calculate the amount of wor k don e w hen a
charg e moves throug h a pote ntial diff erence, V .

North Carolina Science Olympiad
Tom Senior, Illinois Science
Carey Fisher
Contact Information:
    Alex Azima

Shared By: