week of |
Tuesday |
Thursday |
Aug.27 |
Syllabus and Next Generation Science Standards list
pre-tests in Math and Physics
location [m, in] - mass [kg, slug] or weight [N, lb] - time [s]
length and distance ... w/ metric prefixes
Area ... prefixes ... ft² & acres
Volume ... per Volume = density (mass density ρ)
| weight is gravity pulling mass
balancing: equal-arm balance
Pressure Force F = P·A as support Force (to cancel gravity Forces)
spring Force ∝ stretch ; Buoyant Force ∝ immersed Volume
unequal-arm balance
mass moment "multiplication game"
|
Sep.03 |
atmospheric pressure
barometers (H20 vs Hg)
more pressure units: bar, torr, inch Hg
gauge pressure
compressed air
de-pressurized air
| time ... rate and frequency
accumulations ... fluid Pressure as weight of all fluids above
travel rate: speed
velocity (directional)
relative velocity
"weighted" motion: momentum
|
Sep.10 |
total momentum (collisions)
momentum in bounces
spring Force (rubber-band scale calibration)
"soft" supports' pressure
friction Force
drag Force ... water-column barometer
|
1-side of a bounce
long-term unbalanced F
total mass
acceleration
average velocity w/ a
travel distance w/ a
|
Sep.17 |
circular path challenge
circle w/ cord and rails
spring (?)
banked curve
projectiles
Work by Force
|
Kinetic Energy
gravity Potential Energy
elastic PE and E conservation
PE graphs
dart-gun or rubber-band efficiency
bouciness efficiency
|
Sep.24 |
Power
stairs-climbing
car Power
Pressure as an Energy density
dart-gun Power
Energy trace-back
|
magnet Force
Gravitational Force
Gravitational PE
planetary gravity
orbit Gravity
stellar Gravity
|
Oct.01 |
:
Unit 1 Exam
:
Unit 2 : Flow ; Electricity & Magnetism
mass flow rate ρ·v·A
|
electric charge
electric Force
induced dipole attraction
voltage and electric PE
capacitance
batteries
|
Oct.08 |
charge flow rate ρ v A (solar wind)
current in circuits
voltages add in series devices
currents add in parallel conductors
electric Power "loss"
LED's
|
solar cells as photodetector
transistors
magnetism from electric current
atoms as current loop (N-S dipole)
motor & generator
AC Power & transformers
|
Oct.15 |
step-up transformer w/ Crooke's tube
Crooke's tube w/ magnet
Hg fluorescent lamps
step-down transformer w/ rectifier
step-down to weld and deform
powerful capacitor discharge
|
:
:
Unit 2 Exam
:
:
|
Oct.22 |
Unit 3 : Oscillations & Waves
stable equilibrium PE curvature
ruler on desk-edge rapidity
mass-on-spring frequency
mass-on-rope pendulum
rod-on-hinge metronome
|
bobbing bobber
damped oscillator
impulse timing
coupled oscillators & resonance
mode-switching and normal modes
... Last Drop Friday
|
Oct.29 |
Transverse or Longitudinal wave pulses
Energy transfer via Tension
wave speed: Tension cf mass/length
repeat frequency => wavelength
wave reflection types
standing wave nodes & antinodes
|
water surface waves
Huygens' principle: velocity | wave-front
Energy spreads: intensity vs distance
wave speed: gravity cf depth ; "breakers" refract
diffraction after barrier
amplitude squared ; interference
|
Nov.05 |
sound waves
propagation: pressure cf density
reflection echoes ... standing waves in boxes
Energy ∝ frequency
open-closed pipes
overtone spectrum
|
beat frequency
2-source interference pattern
sound quality
octaves ; semitones & music scales
deciBel Intensity scale
dB calculations
|
Nov.12 |
Light sources: continuous or discrete; fluorescence shift
ROYGBV and the RGB display
reflected colors (addition)
absorbed colors (subtraction)
Intensity vs. distance
brightness examples
|
light reflection from smooth conductors partial reflection & polarization
reflection image: image location & orientation
2nd images ; kaleidoscope
convex (large field-of-view) mirrors
virtual image size & angular magnification
concave (magnifying) mirrors
|
Nov.19 |
light refraction at surface
apparent depth (water)
undeflected thru flat window
deflection angle thru prism
wavelength dispersion
rainbows
|
concave (image proximity) lenses
focusing power "diopter"
convex lenses as magnifier
convex real images => Focal Length
convex image brightness (f-ratio)
image resolution
|
Nov.26 |
: Fall Break
:
|
: Thanksgiving Break
:
|
Dec.03 |
laser sources
Newton's rings
oil slicks & soap bubbles
2-slit interference
interference by gratings
2-d light interference & holograms
|
reserved for
spill-over
topics
if there aren't any . . .
review?
|
Dec.10 |
:
:
:
Unit 3 Exam & Final Exam
:
:
| :
:
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